SlideShare a Scribd company logo
1 of 85
Program: B.Sc Nursing, Second Year
BNSG-201 Nutrition & Biochemistry
Unit No.2 Carbohydrates
Topic-Carbohydrates
Lecture No. 1
Dr. Sudharani B Banappagoudar
Professor, SONS/OBG
1
BNSG 201
NUTRITION - UNIT II
Carbhodyrates
2
BNSG 201
Carbohydrates
Composed of carbon, hydrogen, and oxygen, and “constitute the main source of energy for
all body functions, particularly brain functions, and are necessary for the metabolism of other
nutrients” (Mosby 260).
Carbohydrate providing 4 Kcals per one gram Carbohydrate is also essential for the
oxidation of fats and for the synthesis of certain non-essential amino acids
3
BNSG 201
<SELO: 1,4,9,13>
<Reference No.: R1,R3>
Outline
• Introduction
• Carbohydrates, Types, Digestion, Absorption, Metabolism
• Sources , Functions, RDA
• Deficiency
• Learning outcomes
• Exercise
• References
4
BNSG 201
Can you live without sugar?
Soda/Punch
Cookies
Candy
Chocolate
Desserts
Sugary Cereals
Ice cream
5
BNSG 201
<SELO: 1,4,9,13>
<Reference No.: R1,R3>
Carbohydrates
It is the easiest form of food to convert into energy.
Ingested carbohydrates are turned into glucose, which circulates in the bloodstream being readily
available, and into glycogen which is stored in the liver and muscle cells, for later use.
6
BNSG 201
<SELO: 1,4,9,13>
<Reference No.: R1,R3>
Carbohydrates
 Energy Food
 Starch, Sugar
 Least Expensive
 Plentiful Available
 Easily Digested
 Organic Compound,CnH2nOn
 Widely distributed in plant food
7
7
BNSG 201
<SELO: 1,4,9,13>
<Reference No.: R1,R3>
CARBOHYDRATES
Carbohydrates give the body energy. They are the best source of fuel for the body.
Carbohydrates also help to digest protein and fat.
8
BNSG 201
<SELO: 1,4,9,13>
<Reference No.: R1,R3>
CARBOHYDRATES
Carbs
Protein
Fats
45-65% of our food should come from carbohydrates.
If we eat more carbohydrates than are needed for energy, the extra is stored in the liver or
in the tissues as fat.
Carbohydrates are grains, fruits, vegetables, legumes and sugar.
Carbohydrate
Carbohydrate, class of naturally occurring carbonyl compounds (aldehydes or ketones) that
also contain several hydroxyl groups. It may also include their derivatives which produce such
compounds on hydrolysis. They are the most abundant organic molecules in nature and also
referred to as “saccharides”.
The carbohydrates which are soluble in water and sweet in taste are called as “sugars”.
They are the most abundant organic molecules in nature and also referred to as “saccharides”.
Objectives
<SELO: 1,4,9,13> <Reference No.: R1,R2>
12
BNSG 201
By the end of this chapter, you will be able to:
• Carbohydrates, Types, Digestion, Absorption, Metabolism
• Sources , Functions, RDA
• Deficiency
Introduction
Carbohydrates are one of the three main classes of foods and a source of energy.
Carbohydrates are mainly sugars and starches that the body breaks down into glucose
(a simple sugar that the body can use to feed its cells).
Carbohydrates are probably the most abundant and widespread organic substances in nature,
and they are essential constituents of all living things. Carbohydrates are formed by
green plants from carbon dioxide and water during the process of photosynthesis.
Carbohydrates serve as energy sources and as essential structural components in organisms; in
addition, part of the structure of nucleic acids, which contain genetic information, consists of
carbohydrate.
Carbohydrate
Composition
A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O)
atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with
the empirical formula Cm(H2O)n
.
Structural Representation of Carbohydrates
The carbohydrates can be structurally represented in any of the three forms:
1.Open chain structure.
It is the long straight-chain form of carbohydrates.
2.Hemi-acetal structure.
Here the 1st carbon of the glucose condenses with the -OH group of the 5th carbon to form a ring
structure.
3.Haworth structure.
It is the presence of the pyranose ring structure
Properties of Carbohydrates
1.Physical Properties of Carbohydrates
a. Stereoisomerism – Compound sharing the same structural formula but they differ in spatial
configuration. Example: Glucose has two isomers with respect to the penultimate carbon atom.
They are D-glucose and L-glucose.
b. Optical Activity – It is the rotation of plane-polarized light forming (+) glucose and (-) glucose.
c. Diastereo isomers – It the configurational changes with regard to C2, C3, or C4 in glucose.
Example: Mannose, galactose.
d. Annomerism – It is the spatial configuration with respect to the first carbon atom in aldoses and
second carbon atom in ketoses.
2.Chemical Properties of Carbohydrates
a.Osazone formation: Osazone are carbohydrate derivatives when sugars are reacted with an excess
of phenylhydrazine. eg. Glucosazone
b.Benedict’s test: Reducing sugars when heated in the presence of an alkali gets converted to
powerful reducing species known as enediols. When Benedict’s reagent solution and reducing sugars
are heated together, the solution changes its color to orange-red/ brick red.
c.Oxidation: Monosaccharides are reducing sugars if their carbonyl groups oxidize to give carboxylic
acids. In Benedict’s test, D-glucose is oxidized to D-gluconic acid thus, glucose is considered a
reducing sugar.
d.Reduction to alcohols: The C=O groups in open-chain forms of carbohydrates can be reduced to
alcohols by sodium borohydride, NaBH4, or catalytic hydrogenation (H2, Ni, EtOH/H2O). The
products are known as “alditols”.
Properties of Carbohydrates
Classification ofCarbohydrates
Classification
of
Carbohydrate
s
Simple
Aldose
Trioses,T
etrose,
Pentose,Hexose
Monosaccharide
Ketoses
Fructose
Disaccharide
Sucrose,Lactose,
Maltose
Complex
Starch,Glycogen
Homopolysacchari
de Starch,Dextrin
Hetropolysacchari
de Hyaluronic acid
Simple Carbohydrates
Simple carbohydrates are quick energy sources. They come from sugar. They do not usually
supply any other nutrients or fiber.
Simple Sugars
Glucose or blood sugar is the basic source of energy for all living things.
Sucrose or table sugar is made from sugar beets or sugar cane.
Fructose is sugar found in fruit, honey and vegetables.
Maltose is grain starch broken down into sugar.
Lactose is milk sugar.
Complex Carbohydrates
Complex carbohydrates supply longer lasting energy, as well as other nutrients and fiber that the
body needs. They are a better choice.
Complex Carbohydrates
Complex carbohydrates come from starchy foods such as whole grains, flour, seeds, nuts,
vegetables and fruits.
Although a number of classification schemes have been devised for carbohydrates, the
division into four major groups—
1.Monosaccharides,
2.Disaccharides,
3.Oligosaccharides, and
4.Polysaccharides.
Classification of Carbohydrates
Monosaccharide
 One Sugar Unit
 Important Single Sugar are Glucose, Fructose, Galactose
Glucose (Dextrose):
Give Energy for body Activity
It is primary Fuel of Cell
It usually not found in Diet (Corn Syrup)
Produce from Starch.
Monosaccharide
Fructose:
Fruit, Honey
Sweetest of Simple Sugar
Soft drink, Ready to use Cereals, Desserts
Galactose:
Milk Sugar
Monosaccharides
Monosaccharides
The building blocks of all simplest group carbohydrates are simple sugars called monosaccharides
since they cannot be further hydrolyzed . A monosaccharide can be a polyhydroxy aldehyde (aldose)
or a polyhydroxy ketone (ketose). Colorless, crystalline solid which are soluble in water and
insoluble in a non-polar solvent. These are compound which possesses a free aldehyde or ketone
group. Most monosaccharides, or simple sugars, are found in grapes, other fruits, and honey.
Although they can contain from three to nine carbon atoms, the most common representatives
consist of five or six joined together to form a chainlike molecule. Three of the most important
simple sugars—glucose(also known as dextrose, grape sugar, and corn sugar), fructose (fruit sugar),
and galactose—have the same molecular formula, (C6H12O6), but, because their atoms have different
structural arrangements, the sugars have different characteristics; i.e., they are isomers.
The general formula is Cn(H2O) nor CnH2nOn. These are compound which possesses a free
aldehyde or ketone group.
They are classified according to the number of carbon atoms they contain and also on the basis
of the functional group present.The monosaccharides thus with 3,4,5,6,7… carbons are called
trioses, tetroses, pentoses, hexoses, heptoses, etc., and also as aldoses or ketoses depending upon
whether they contain aldehyde or ketone group.
Examples: Glucose, Fructose, Erythrulose, Ribulose.
Monosaccharides
Properties of Monosaccharides
Most monosaccharides have a sweet taste (fructose is sweetest; 73% sweeter than sucrose).
They are solids at room temperature.
They are extremely soluble in water: – Despite their high molecular weights, the presence of
large numbers of OH groups make the monosaccharides much more water-soluble than most
molecules of similar MW.
Glucose can dissolve in minute amounts of water to make a syrup (1 g / 1 ml H2O).
Monosaccharides
 Are Simple Single Sugar
 Which require no Digestion
 Quickly absorbed from Intestine to Blood and carried to the Liver
 In Liver Converted into Glycogen and stored.
Characteristics of Monosaccharide
Disaccharide
 Are Simple Double Sugar
 Which Link with two Single Sugar
 Important Disaccharides are Sucrose, Lactose &Maltose
Sucrose = Glucose + Fructose
e.g. Sugar, Brown Sugar Sugarcane, Sugar beet.
Disaccharide
Lactose = Glucose + Galactose
e.g. Milk Sugar Lactose is less soluble
Less Sweet than Sucrose
Maltose = Glucose + Glcose Starch => Maltose => Glucose
Sugar alcohols such Sorbitol Used in Candies, Beverages.
Disaccharides
Disaccharides
Two molecules of a simple sugar that are linked to each other form a disaccharide, or double
sugar. The disaccharide sucrose, or table sugar, consists of one molecule of glucose and one
molecule of fructose; the most familiar sources of sucrose are sugar beets and cane sugar. Milk
sugar, or lactose, and maltose are also disaccharides. Before the energy in disaccharides can be
utilized by living things, the molecules must be broken down into their respective
monosaccharides.
Oligosaccharides
Oligosaccharides
Oligosaccharides are compound sugars that yield 2 to 10 molecules of the same or different
monosaccharides on hydrolysis are rather infrequently found in natural sources, although a few
plant derivatives have been identified. .The monosaccharide units are joined by glycosidic
linkage.
Based on the number of monosaccharide units, it is further classified as disaccharide,
trisaccharide, tetrasaccharide etc.
Oligosaccharides yielding 2 molecules of monosaccharides on hydrolysis is known as a disaccharide, and
the ones yielding 3 or 4 monosaccharides are known as trisaccharides and tetrasaccharides respectively and
so on.
The general formula of disaccharides is Cn(H2O)n-1and that of trisaccharides is Cn(H2O)n-2 and so on.
Examples: Disaccharides include sucrose, lactose, maltose, etc.
Oligosaccharides
Polysaccharides(the term means many sugars)
Polysaccharides(the term means many sugars)
They are also called as “glycans”. Polysaccharides represent most of the structural and
energy-reserve carbohydrates found in nature. Large molecules that may consist of as many
as 10,000 monosaccharide on hydrolysis & these units are linked together, polysaccharides
vary considerably in size, in structural complexity, and in sugar content. Polysaccharides
differ from each other in the identity of their recurring monosaccharide units, in the length of
their chains, in the types of bond linking units and in the degree of branching.
Cellulose, the principal structural component of plants, is a complex polysaccharide
comprising many glucose units linked together; it is the most common polysaccharide. The starch
found in plants and the glycogen found in animals also are complex glucose polysaccharides.
Starch (from the Old English word stercan, meaning “to stiffen”) is found mostly in seeds, roots,
and stems, where it is stored as an available energy source for plants. Plant starch may be processed
into foods such as bread, or it may be consumed directly—as in potatoes, for instance. Glycogen,
which consists of branching chains of glucose molecules, is formed in the liver and muscles of
higher animals and is stored as an energy source.
They are primarily concerned with two important functions ie.
1. Structural functions
2. The storage of energy.
Polysaccharides(the term means many sugars)
Fiber
Insoluble
Fiber
• Cellulose
• Hemicellulose
• Lignin
Occurrence
• Cellwall
• Secretion&
Cell
• Woodypart of
plants
Source
• Wheatflour,
Bran
• Bran&Gram
• Vegetables,
Fruits
&Wheat
Fiber
Soluble
Fiber
• Gums
• Pectins
Occurrence
• SpecialCell
Secretion
• Woodypart
ofplants
Source
• Oats,
Legumes,
Guar,Barley
• Apple,
Guavas,
Citrus Fruits
Action of Fiber in the Body
Insoluble Fiber
• Accelerate GI Transit
• Increase Fecal Weight
• Promotes bowel
movement
• Slow Starch
Hydrolysis
• Delays Glucose
Absorption.
Soluble Fiber
• Delays GI Transit
• Lowers blood
Cholesterols
• Delays Glucose
absorption.
Digestion and absorption of carbohydrates
Digestion and absorption of carbohydrates
The digestion of carbohydrates begins in the mouth by Ptyalin (amylase) produced by the salivary
glands. No carbohydrate digestion takes place in the stomach. Digestion occurs mainly in the small
intestine through the action of pancreatic and intestinal juices: ƒ
Amylase ƒ
Lactase ƒ
Sucrase ƒ
Maltase
Dextrin is degradation products of starch in which the glucose chains have been broken down to
smaller units by partial hydrolysis. ƒ Dextran is a carbohydrate polymer obtained from bacterial cell
wall. This has no part in dietetics but is used in medicine as plasma expander.
Digestion
Mouth
Salivary amylase
Stomach
Fibers and satiety
Small Intestine
-Maltase, sucrase, lactase
Pancreas
Pancreatic amylase
Large Intestine
-Fermentation of viscous fibers
 Water, gas, short-chain fatty
acid production
Digestion of Carbohydrates
 Mouth :Chewing – Breaks up food
 Saliva - Amylase
 Pancreatic Amylase
 Intestinal Amylase
Dietary Carbohydrate/
Starch
Amylase
Maltose +
Isomaltose
Digestion ofCarbohydrates
 SmallIntestine
Maltose → Maltase → Glucose + Glucose Lactose →
Lactase → Glucose + Galactose Sucrose →
Surcease → Glucose + Fructose.
Carbohydrate
Storage :
Glucose → In Liver & Muscle → Glycogen
Metabolism :
• Anabolism
1. Glucose → Glycogen
2. Glucose → Fat (Lipogenesis)
• Catabolism
1. Glucose →ATP
2. Glycogen → Glucose.
Summary of carbohydrate digestion
Site of action Carbohydrate Enzyme End – product
Mouth Starch Amylase in saliva
(ptyalin)
Dextrin- maltose
Glucose
Small intestine Starch Amylase in pancreatic
juice
Dextrin- maltose
glucose maltose
Glucose
Dextrin Enzyme in brush
border of small
intestine
Maltose Sucrose
Lactose
Maltase
Sucrase
Lactase
Glucose Glucose &
fructose Glucose &
Galactose
Carbohydrate Digestion in the GI Tract
Absorption
Metabolism
Glucose in the Body
Used for energy – fuels most of the body’s cells
Stored as glycogen – 1/3 in the liver and 2/3 in muscles
Made from protein – gluconeogenesis
Converted to fat – when in excess of body’s needs
Constancy of Blood Glucose
Regulating hormones – maintain glucose homeostasis
1. Insulin – moves glucose from the blood into cells
2. Glucagon – signals the liver to release glucose into the blood
3. Epinephrine – released when emergency fuel needed
Maintaining Blood Glucose Homeostasis
Absorption
Carbohydrates are absorbed from small intestine mainly as monosaccharides, namely glucose,
galactose & fructose. Through sodium co-transport mechanism glucose and galactose are
absorbed into portal blood.
Fructose absorption takes place through the epithelium of intestine which is facilitated by
diffusion.
glucose, galactose & fructose absorbed in the intestines pass through the portal circulation to
the liver. In liver galactose ,fructose and some part of glucose into glycogen. A part of glucose
passess into the general circulation & to the various tissues for being oxidized and used as
energy. Some part of glucose is stored in liver & muscles and some portion converted to fat
which is stored in adipose tissues. This oxidation occurs in 2 stages ie Glycolysis and a series
of reaction of Kreb Cycle
In Health and with normal diet, the available carbohydrate is digested and absorbed completely in
the small intestine. If an excess of unabsorbed carbohydrate arise due to a disorder of the
absorption mechanisms or occasionally to excessive intake, the osmotic pressure (effects) leads to
retention of fluids in the lumen and as the result there will be watery diarrhoea. This diarrhoea is
known as osmotic diarrhoea. The tissues use as fuel a mixture of glucose and fatty acids. But the
brain normally uses only glucose and requires around 80g daily. In starvation glucose may be
provided by gluconeogenesis from the amino acids in tissues proteins, mainly from muscle
proteins, but fats cannot be converted into glucose. With prolonged starvation the brain adapts
and can then utilize fatty acids and ketone.
Absorption
The two hormones, which control the metabolisms of carbohydrates, are insulin and glucagons
ƒ Insulin is secreted by the beta cells of the islets of Langerhans and the secretion is stimulated
by: – Hyperglycemias – Parasympathetic nervous activity Function of insulin To facilitate
glucose transport to the liver and muscle cells To facilitate formation of glycogen in the liver
and muscle cells To incorporate formation of protein from the amino acids.
Absorption
Functions
Functions
Carbohydrates are widely distributed molecules in plant and animal tissues. In plants and
arthropods, carbohydrates from the skeletal structures, they also serve as food reserves in plants
and animals. They are important energy source required for various metabolic activities, the
energy is derived by oxidation.
Functions
Some of their major functions include:
1. Living organisms use carbohydrates as accessible energy to fuel cellular reactions. They are the
most abundant dietary source of energy (4kcal/gram) for all living beings.
2. Carbohydrates along with being the chief energy source, in many animals, are instant sources
of energy. Glucose is broken down by glycolysis/ Kreb’s cycle to yield ATP.
3. Serve as energy stores, fuels, and metabolic intermediates. It is stored as glycogen in animals
and starch in plants.
4. Stored carbohydrates act as an energy source instead of proteins.
5. They form structural and protective components, like in the cell wall of plants and
microorganisms. Structural elements in the cell walls of bacteria (peptidoglycan or murein),
plants (cellulose) and animals (chitin).
Functions
1. Carbohydrates are intermediates in the biosynthesis of fats and proteins.
2. Carbohydrates aid in the regulation of nerve tissue and are the energy source for the brain.
3. Carbohydrates get associated with lipids and proteins to form surface antigens, receptor
molecules, vitamins, and antibiotics.
4. Formation of the structural framework of RNA and DNA (ribonucleic acid and
deoxyribonucleic acid).
5. They are linked to many proteins and lipids. Such linked carbohydrates are important in cell-
cell communication and in interactions between cells and other elements in the cellular
environment.
6. In animals, they are an important constituent of connective tissues.
7. Carbohydrates that is rich in fiber content help to prevent constipation.
8. Also, they help in the modulation of the immune system.
 Energy Supply Brain,Cell
 SpareProteins
 Synthesis of Substances Non-essentialAminoacids
Glycoproteins
Glycolipids
 Promote complete lipid metabolism
 Provide Bulk Fiberin the Diet.
Functions
 Energy Supply for body function
 Essential for the Oxidation of Fats
 Proteins sparing action
 Provide Carbon for synthesis of Non-essential Amino acids
 Are present in some tissue Constituents
 Add flavour to Diet
 Nucleic acid of Connective tissue Matrix , Galactosides of Nerve Tissue
 Necessary for proper functioning of CNS
 Adequate hepatic Glycogen Storage enhances normal liver detoxification ability.
Functions
Caloric Value
One Kilo Calorie is defined as the amount of heat required to raise the temperature of 1 kg of
water by 1 degree Celsius. 1 gm of carbohydrates on complete oxidation yields 4 kcal of
energy.
Recommended Dietary Allowances
Normally 60-70 per cent of our total calories should come from carbohydrates. 275-300 grams
of carbohydrates in 2000 kcal
Functions
Source of Carbohydrates
 Sugar :
Honey, Fruits, Soft Drink, Milk, Sugar,
 Starch:
Cereals, Pasta, Flour, Bread, Potatoes,Root Vege., Pulses
 Fiber: Cereals, Bran, Outer skin of Fruits & Vege., Brown rice, Oatmeals
Pectin: Fruits.
SourceofCarbohydrates
Carbohydrates Food Source
Glucose Fruits, Honey, CornSyrup
Fructose Fruits,Honey
Galactose Milk
Maltose Backed Starch
Sucrose Cane &Beat Sugar
Lactose Milk Product
Starch &Dextrin Grains,Root &Tubers,Legumes
Glycogen Meat Product, SeaFood
Cellulose Vegetables, Outer coat ofSeed
Pectin and gums Fruits, PlantSecretion,seeds.
Dietary Sources
All sources like wheat, rice, jowar, bajra, ragai etc
Roots and tubers like potato and sweet potato.
Sugarcane, honey, jaggery, and sago.
Vegetables like beans, peas, carrots, tomatoes, cabbage, & spinach
Fruits like bananas, grapes, oranges & strawberries.
Constancy of Blood Glucose
Diabetes
Type 1 diabetes
Failure of insulin production
Type 2 diabetes
Obesity
Hypoglycemia
Rare in healthy people
Glycemic response
Glycemic index
Glycemic Index
Health Effects of Sugar
Sugar in excess
1. Contains no nutrients and may contribute to malnutrition
2. Causes dental caries (tooth decay)
3. Does not cause, but can contribute
to: obesity, diabetes, heart
disease, & behavorial problems
Accusations Against Sugars
Sugar causes
obesity
Sugar causes
heart disease
Accusations Against
Sugars
Sugar causes misbehavior in children and criminal behavior in adults
Sugar causes cravings and addictions
serotonin
Recommended Intakes of Sugars
DRI
No more than 25% of total daily
energy intake
-Limit added sugars to <10% of
total energy intake
Copyright 2005 Wadsworth Group, a division of Thomson Learning
Health Effects
• Complex carbohydrates &
fiber may reduce
the risk of:
-Heart disease
-Diabetes
-GI health
-Cancer
-Weight
Management
Health Effects
How?
Diets high in complex CHO tend to be:
1. Lower in fat and calories
2. Higher in fiber, vitamins, & minerals
Soluble Fibers
Lower blood cholesterol by binding dietary cholesterol so less absorbed
Slow glucose absorption
Slow transit of food through upper GI tract
Holds moisture in stools, softening them
Lower risk of heart disease
Lower risk of diabetes
Soluble Fibers
Gums & mucilages, pectins, psyllium
Sources
Whole-grains, fruits, legumes, seeds and husks, vegetables
Extracted and used as food additives
Insoluble Fibers
Increase fecal weight - helps form soft, bulky stools which improves G.I. motility
& reduces risk of constipation, hemorrhoids,
diverticulosis & colon cancer
Speed fecal passage through colon
Provide bulk and feelings of fullness
(satiety)
Insoluble Fibers
Cellulose, lignins, hemiculloses
Sources
Brown rice, fruits, legumes, seeds,
vegetables, wheat bran, whole grains
Extracted and used as food additives
Recommended Intakes
of Carbohydrates & Fibers
RDA for carbohydrate
130 g/day
45% - 65% total daily energy intake
with emphasis on complex
-Daily Value: 300 g/day
Fiber
Daily Value: 25 g/day
AI: 14 g/1000 kcal/day
Dietary Recommendations
Example:
If 2000 kcal diet, then:
1100-1200 kcals as CHO
(275-300 grams)
with < 200 kcals as “added sugar”
(50 grams)
One 12 oz. soft drink has 36-40 gms sugar
0ne tsp. sugar weighs 4 gms = 9-10 tsps!
Malnutrition ofCarbohydrate
Deficiency :
Low body weight
Accumulation of large amount of ketone bodies in the body
Overconsumption :
• Increase dental caries
• Cause Obesity
• Large amount of sugar – Gastric ulcer
• Depress appetite – Soft Drink
• Increase blood Triglyceride – Lead to Heart Disease.
Alternative Sweeteners
Two Categories
1. Sugar Alcohols – mannitol, sorbitol,
xylitol
2. Artificial sweeteners – sugar substitutes
(calorie-free); in moderation, useful for
blood sugar & weight control
Alternative Sweeteners
Sugar Alcohols
1. CHOs that provide less energy than
sucrose (2-3 kcals/gm) because not
completely absorbed
2. May cause gas, abdominal discomfort,
diarrhea
3. Less cariogenic than sugar
EXERCISE
81
Explain
BNSG 201
LEARNING OUTCOMES
BNSG 201 82
The student will be able to Explain
National health Policy its Goals
Student effective learning outcome
1.Application of concepts of topic & it’s technological application.
2.Ability to interpret and analyze data into information and to design and conduct experiments.
3.Understanding available tools and products and ability to use it effectively.
4.Adaptive Thinking Skills
83
BNSG 201
Reference
1.Essentials of nutrition and biochemistry for basic B sc nursing I clement
2. Food & nutrition for nurses (B sc nursing) by Ruma Singh
3. A textbook of nutrition B.Sc(n) first year Darshan Soni
84
BNSG 201
85
BNSG 201

More Related Content

What's hot

Digestion and Absorption of Carbohydrates
Digestion and Absorption of CarbohydratesDigestion and Absorption of Carbohydrates
Digestion and Absorption of CarbohydratesSohil Takodara
 
Absorption of proteins ppt
Absorption of proteins pptAbsorption of proteins ppt
Absorption of proteins pptIbad khan
 
Fats Unit 3rd of nutrition
Fats Unit 3rd of nutrition Fats Unit 3rd of nutrition
Fats Unit 3rd of nutrition Atul Yadav
 
Digestion and absorption of lipids
Digestion and absorption of lipids Digestion and absorption of lipids
Digestion and absorption of lipids Rony Queen
 
Fats notes for nursing students
Fats notes for nursing studentsFats notes for nursing students
Fats notes for nursing studentsajith anand
 
Digestion and absorption of proteins
Digestion and absorption of proteinsDigestion and absorption of proteins
Digestion and absorption of proteinsAshok Katta
 
Digestion & absorption of carbohydrate
Digestion & absorption of carbohydrateDigestion & absorption of carbohydrate
Digestion & absorption of carbohydratesakina hasan
 
HEME DEGRADATION
HEME DEGRADATIONHEME DEGRADATION
HEME DEGRADATIONYESANNA
 
Nutrition for b. Sc nursing 1 year
Nutrition for b. Sc nursing 1 yearNutrition for b. Sc nursing 1 year
Nutrition for b. Sc nursing 1 yearRamya Ramya
 
Digestion and absorption of lipids
Digestion and absorption of  lipidsDigestion and absorption of  lipids
Digestion and absorption of lipidsrohini sane
 
Digestion and absorption of lipids
Digestion and absorption of lipidsDigestion and absorption of lipids
Digestion and absorption of lipidsdnyanesh amle
 
DIGESTION & ABSORPTION OF CARBOHYDRATES
DIGESTION & ABSORPTION OF CARBOHYDRATESDIGESTION & ABSORPTION OF CARBOHYDRATES
DIGESTION & ABSORPTION OF CARBOHYDRATESYESANNA
 

What's hot (20)

Heme catabolism.pptx
Heme catabolism.pptxHeme catabolism.pptx
Heme catabolism.pptx
 
Digestion and Absorption of Carbohydrates
Digestion and Absorption of CarbohydratesDigestion and Absorption of Carbohydrates
Digestion and Absorption of Carbohydrates
 
Absorption of proteins ppt
Absorption of proteins pptAbsorption of proteins ppt
Absorption of proteins ppt
 
Digestion of carbohydrates
Digestion of carbohydratesDigestion of carbohydrates
Digestion of carbohydrates
 
Fats Unit 3rd of nutrition
Fats Unit 3rd of nutrition Fats Unit 3rd of nutrition
Fats Unit 3rd of nutrition
 
Carbohydrates
CarbohydratesCarbohydrates
Carbohydrates
 
Carbohydrates
CarbohydratesCarbohydrates
Carbohydrates
 
Classification of carbohydrates.ppt
Classification of carbohydrates.pptClassification of carbohydrates.ppt
Classification of carbohydrates.ppt
 
Digestion and absorption of lipids
Digestion and absorption of lipids Digestion and absorption of lipids
Digestion and absorption of lipids
 
Fats notes for nursing students
Fats notes for nursing studentsFats notes for nursing students
Fats notes for nursing students
 
Digestion and absorption of proteins
Digestion and absorption of proteinsDigestion and absorption of proteins
Digestion and absorption of proteins
 
Digestion & absorption of carbohydrate
Digestion & absorption of carbohydrateDigestion & absorption of carbohydrate
Digestion & absorption of carbohydrate
 
HEME DEGRADATION
HEME DEGRADATIONHEME DEGRADATION
HEME DEGRADATION
 
Regulation blood glucose
Regulation blood glucoseRegulation blood glucose
Regulation blood glucose
 
Nutrition for b. Sc nursing 1 year
Nutrition for b. Sc nursing 1 yearNutrition for b. Sc nursing 1 year
Nutrition for b. Sc nursing 1 year
 
Biochemistry lecture notes lipids
Biochemistry lecture notes lipidsBiochemistry lecture notes lipids
Biochemistry lecture notes lipids
 
Digestion and absorption of lipids
Digestion and absorption of  lipidsDigestion and absorption of  lipids
Digestion and absorption of lipids
 
Digestion and absorption of lipids
Digestion and absorption of lipidsDigestion and absorption of lipids
Digestion and absorption of lipids
 
DIGESTION & ABSORPTION OF CARBOHYDRATES
DIGESTION & ABSORPTION OF CARBOHYDRATESDIGESTION & ABSORPTION OF CARBOHYDRATES
DIGESTION & ABSORPTION OF CARBOHYDRATES
 
Lipoproteins
LipoproteinsLipoproteins
Lipoproteins
 

Similar to Unit 2 Carbohydrates

introduction to Carbohydrates and its type
introduction to Carbohydrates and its typeintroduction to Carbohydrates and its type
introduction to Carbohydrates and its typeSekho Science
 
Chemistry of Natural Product Type.pptx
Chemistry of  Natural Product Type.pptxChemistry of  Natural Product Type.pptx
Chemistry of Natural Product Type.pptxJACOB THON BIOR
 
Chemistry of Carbohydrates.pptx
Chemistry of Carbohydrates.pptxChemistry of Carbohydrates.pptx
Chemistry of Carbohydrates.pptxabeerarajput
 
Carbohydrates
Carbohydrates Carbohydrates
Carbohydrates Rabfara
 
carbohydrates-131204014552-phpapp02 (1).pdf
carbohydrates-131204014552-phpapp02 (1).pdfcarbohydrates-131204014552-phpapp02 (1).pdf
carbohydrates-131204014552-phpapp02 (1).pdfTARUNKUMAR431238
 
carbohydrates-131204014552-phpapp0.2.pdf
carbohydrates-131204014552-phpapp0.2.pdfcarbohydrates-131204014552-phpapp0.2.pdf
carbohydrates-131204014552-phpapp0.2.pdfAmulyaSnr
 
carbohydrates-131204014552-phpapp02 [Autosaved].pptx
carbohydrates-131204014552-phpapp02 [Autosaved].pptxcarbohydrates-131204014552-phpapp02 [Autosaved].pptx
carbohydrates-131204014552-phpapp02 [Autosaved].pptxLeiraMariel1
 
carbohydrates-131204014552-phpapp02-1.pdf
carbohydrates-131204014552-phpapp02-1.pdfcarbohydrates-131204014552-phpapp02-1.pdf
carbohydrates-131204014552-phpapp02-1.pdfmarlynjusol697
 
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutrition
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutritioncarbohydrates-131204014552-phpapp02.pdf for agricultural department in nutrition
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutritionsharanjain0
 
Carbohydrate Str, Func and classification.pdf
Carbohydrate Str, Func and classification.pdfCarbohydrate Str, Func and classification.pdf
Carbohydrate Str, Func and classification.pdfpriyanshpatel29
 
Biochemistry final ppt
Biochemistry final pptBiochemistry final ppt
Biochemistry final pptRonel Batangan
 
Carbohydrate chemistry 15
Carbohydrate chemistry 15Carbohydrate chemistry 15
Carbohydrate chemistry 15Aparna Misra
 
CHE507_RAM CHAUHAN-2.pptx
CHE507_RAM CHAUHAN-2.pptxCHE507_RAM CHAUHAN-2.pptx
CHE507_RAM CHAUHAN-2.pptxMihirOza11
 

Similar to Unit 2 Carbohydrates (20)

introduction to Carbohydrates and its type
introduction to Carbohydrates and its typeintroduction to Carbohydrates and its type
introduction to Carbohydrates and its type
 
Chemistry of Natural Product Type.pptx
Chemistry of  Natural Product Type.pptxChemistry of  Natural Product Type.pptx
Chemistry of Natural Product Type.pptx
 
Chemistry of Carbohydrates.pptx
Chemistry of Carbohydrates.pptxChemistry of Carbohydrates.pptx
Chemistry of Carbohydrates.pptx
 
Carbohydrates
Carbohydrates Carbohydrates
Carbohydrates
 
carbohydrates and classification manikant mani.
 carbohydrates and classification  manikant mani. carbohydrates and classification  manikant mani.
carbohydrates and classification manikant mani.
 
Biomolecule
BiomoleculeBiomolecule
Biomolecule
 
carbohydrates-131204014552-phpapp02 (1).pdf
carbohydrates-131204014552-phpapp02 (1).pdfcarbohydrates-131204014552-phpapp02 (1).pdf
carbohydrates-131204014552-phpapp02 (1).pdf
 
carbohydrates-131204014552-phpapp0.2.pdf
carbohydrates-131204014552-phpapp0.2.pdfcarbohydrates-131204014552-phpapp0.2.pdf
carbohydrates-131204014552-phpapp0.2.pdf
 
carbohydrates-131204014552-phpapp02 [Autosaved].pptx
carbohydrates-131204014552-phpapp02 [Autosaved].pptxcarbohydrates-131204014552-phpapp02 [Autosaved].pptx
carbohydrates-131204014552-phpapp02 [Autosaved].pptx
 
Chemistry of carbohydrates
Chemistry of carbohydratesChemistry of carbohydrates
Chemistry of carbohydrates
 
Biomolecules
BiomoleculesBiomolecules
Biomolecules
 
carbohydrates-131204014552-phpapp02-1.pdf
carbohydrates-131204014552-phpapp02-1.pdfcarbohydrates-131204014552-phpapp02-1.pdf
carbohydrates-131204014552-phpapp02-1.pdf
 
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutrition
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutritioncarbohydrates-131204014552-phpapp02.pdf for agricultural department in nutrition
carbohydrates-131204014552-phpapp02.pdf for agricultural department in nutrition
 
Carbohydrate Str, Func and classification.pdf
Carbohydrate Str, Func and classification.pdfCarbohydrate Str, Func and classification.pdf
Carbohydrate Str, Func and classification.pdf
 
Biochemistry final ppt
Biochemistry final pptBiochemistry final ppt
Biochemistry final ppt
 
Carbohydrates 1
Carbohydrates 1Carbohydrates 1
Carbohydrates 1
 
Carbohydrate chemistry 15
Carbohydrate chemistry 15Carbohydrate chemistry 15
Carbohydrate chemistry 15
 
CARBOHYDRATES
CARBOHYDRATESCARBOHYDRATES
CARBOHYDRATES
 
Carbohydrate
CarbohydrateCarbohydrate
Carbohydrate
 
CHE507_RAM CHAUHAN-2.pptx
CHE507_RAM CHAUHAN-2.pptxCHE507_RAM CHAUHAN-2.pptx
CHE507_RAM CHAUHAN-2.pptx
 

More from ITM UNIVERSITY,GWALIOR

Role of nutrition in mantaning health and nutritional problems in India
Role of nutrition in mantaning health and nutritional problems in IndiaRole of nutrition in mantaning health and nutritional problems in India
Role of nutrition in mantaning health and nutritional problems in IndiaITM UNIVERSITY,GWALIOR
 
5. Abnormalities of fallopian tube, uterus.pptx
5. Abnormalities of fallopian tube, uterus.pptx5. Abnormalities of fallopian tube, uterus.pptx
5. Abnormalities of fallopian tube, uterus.pptxITM UNIVERSITY,GWALIOR
 
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptxITM UNIVERSITY,GWALIOR
 
UNIT 5 CET.Principles of education &teaching learning process
UNIT 5 CET.Principles of education &teaching learning processUNIT 5 CET.Principles of education &teaching learning process
UNIT 5 CET.Principles of education &teaching learning processITM UNIVERSITY,GWALIOR
 

More from ITM UNIVERSITY,GWALIOR (20)

6. therapeuticdiet.pptx
6. therapeuticdiet.pptx6. therapeuticdiet.pptx
6. therapeuticdiet.pptx
 
Vitamin.pptx
Vitamin.pptxVitamin.pptx
Vitamin.pptx
 
Protein Energy Malnutrition.pptx
Protein Energy Malnutrition.pptxProtein Energy Malnutrition.pptx
Protein Energy Malnutrition.pptx
 
History and concepts of nutrition
History and concepts of nutritionHistory and concepts of nutrition
History and concepts of nutrition
 
Food laws in India
Food laws in IndiaFood laws in India
Food laws in India
 
Calorie
CalorieCalorie
Calorie
 
Role of nutrition in mantaning health and nutritional problems in India
Role of nutrition in mantaning health and nutritional problems in IndiaRole of nutrition in mantaning health and nutritional problems in India
Role of nutrition in mantaning health and nutritional problems in India
 
Elements of Nutrition
Elements of NutritionElements of Nutrition
Elements of Nutrition
 
Micronutrients
MicronutrientsMicronutrients
Micronutrients
 
Factors of malnutrition
Factors of malnutritionFactors of malnutrition
Factors of malnutrition
 
1.Uterus and Fallopian Tube.pptx
1.Uterus and Fallopian Tube.pptx1.Uterus and Fallopian Tube.pptx
1.Uterus and Fallopian Tube.pptx
 
5. Abnormalities of fallopian tube, uterus.pptx
5. Abnormalities of fallopian tube, uterus.pptx5. Abnormalities of fallopian tube, uterus.pptx
5. Abnormalities of fallopian tube, uterus.pptx
 
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx
7 CONGENITAL ANAMOLIES OF UTERS AND CERVIX.pptx
 
4.DMC.pptx
4.DMC.pptx4.DMC.pptx
4.DMC.pptx
 
2. Ovaries.pptx
2. Ovaries.pptx2. Ovaries.pptx
2. Ovaries.pptx
 
10.04.20 SEXUAL HEALTH.pptx
10.04.20 SEXUAL HEALTH.pptx10.04.20 SEXUAL HEALTH.pptx
10.04.20 SEXUAL HEALTH.pptx
 
6.Indifferent embryo
6.Indifferent embryo6.Indifferent embryo
6.Indifferent embryo
 
16.04.20 disordersofmenstruation.pptx
16.04.20 disordersofmenstruation.pptx16.04.20 disordersofmenstruation.pptx
16.04.20 disordersofmenstruation.pptx
 
3.Menestrual Hygiene.pptx
3.Menestrual Hygiene.pptx3.Menestrual Hygiene.pptx
3.Menestrual Hygiene.pptx
 
UNIT 5 CET.Principles of education &teaching learning process
UNIT 5 CET.Principles of education &teaching learning processUNIT 5 CET.Principles of education &teaching learning process
UNIT 5 CET.Principles of education &teaching learning process
 

Recently uploaded

VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...
VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...
VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...narwatsonia7
 
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune) Girls Service
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune)  Girls ServiceCALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune)  Girls Service
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune) Girls ServiceMiss joya
 
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...call girls in ahmedabad high profile
 
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls Available
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls AvailableVip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls Available
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls AvailableNehru place Escorts
 
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipur
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls JaipurCall Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipur
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipurparulsinha
 
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore EscortsCall Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escortsvidya singh
 
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...Miss joya
 
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort ServicePremium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Servicevidya singh
 
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoy
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night EnjoyCall Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoy
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoynarwatsonia7
 
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...Miss joya
 
Bangalore Call Girls Hebbal Kempapura Number 7001035870 Meetin With Bangalor...
Bangalore Call Girls Hebbal Kempapura Number 7001035870  Meetin With Bangalor...Bangalore Call Girls Hebbal Kempapura Number 7001035870  Meetin With Bangalor...
Bangalore Call Girls Hebbal Kempapura Number 7001035870 Meetin With Bangalor...narwatsonia7
 
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Service
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort ServiceCall Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Service
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Serviceparulsinha
 
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...Miss joya
 
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...indiancallgirl4rent
 
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Service
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls ServiceKesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Service
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Servicemakika9823
 
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoy
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night EnjoyCall Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoy
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoybabeytanya
 
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore EscortsVIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escortsaditipandeya
 
Bangalore Call Girls Nelamangala Number 7001035870 Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 7001035870  Meetin With Bangalore Esc...Bangalore Call Girls Nelamangala Number 7001035870  Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 7001035870 Meetin With Bangalore Esc...narwatsonia7
 
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy Girls
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy GirlsCall Girls In Andheri East Call 9920874524 Book Hot And Sexy Girls
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy Girlsnehamumbai
 

Recently uploaded (20)

VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...
VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...
VIP Call Girls Tirunelveli Aaradhya 8250192130 Independent Escort Service Tir...
 
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune) Girls Service
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune)  Girls ServiceCALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune)  Girls Service
CALL ON ➥9907093804 🔝 Call Girls Baramati ( Pune) Girls Service
 
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...
Call Girls Near Hotel Marine Plaza ✔ 9820252231 ✔For 18+ VIP Call Girl At The...
 
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls Available
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls AvailableVip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls Available
Vip Call Girls Anna Salai Chennai 👉 8250192130 ❣️💯 Top Class Girls Available
 
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipur
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls JaipurCall Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipur
Call Girls Service Jaipur Grishma WhatsApp ❤8445551418 VIP Call Girls Jaipur
 
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore EscortsCall Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
Call Girls Horamavu WhatsApp Number 7001035870 Meeting With Bangalore Escorts
 
Russian Call Girls in Delhi Tanvi ➡️ 9711199012 💋📞 Independent Escort Service...
Russian Call Girls in Delhi Tanvi ➡️ 9711199012 💋📞 Independent Escort Service...Russian Call Girls in Delhi Tanvi ➡️ 9711199012 💋📞 Independent Escort Service...
Russian Call Girls in Delhi Tanvi ➡️ 9711199012 💋📞 Independent Escort Service...
 
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...
VIP Call Girls Pune Vrinda 9907093804 Short 1500 Night 6000 Best call girls S...
 
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort ServicePremium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
Premium Call Girls Cottonpet Whatsapp 7001035870 Independent Escort Service
 
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoy
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night EnjoyCall Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoy
Call Girls Yelahanka Bangalore 📲 9907093804 💞 Full Night Enjoy
 
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...
College Call Girls Pune Mira 9907093804 Short 1500 Night 6000 Best call girls...
 
Bangalore Call Girls Hebbal Kempapura Number 7001035870 Meetin With Bangalor...
Bangalore Call Girls Hebbal Kempapura Number 7001035870  Meetin With Bangalor...Bangalore Call Girls Hebbal Kempapura Number 7001035870  Meetin With Bangalor...
Bangalore Call Girls Hebbal Kempapura Number 7001035870 Meetin With Bangalor...
 
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Service
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort ServiceCall Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Service
Call Girls Service In Shyam Nagar Whatsapp 8445551418 Independent Escort Service
 
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...
Russian Call Girls in Pune Riya 9907093804 Short 1500 Night 6000 Best call gi...
 
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...
(Rocky) Jaipur Call Girl - 9521753030 Escorts Service 50% Off with Cash ON De...
 
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Service
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls ServiceKesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Service
Kesar Bagh Call Girl Price 9548273370 , Lucknow Call Girls Service
 
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoy
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night EnjoyCall Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoy
Call Girl Number in Panvel Mumbai📲 9833363713 💞 Full Night Enjoy
 
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore EscortsVIP Call Girls Indore Kirti 💚😋  9256729539 🚀 Indore Escorts
VIP Call Girls Indore Kirti 💚😋 9256729539 🚀 Indore Escorts
 
Bangalore Call Girls Nelamangala Number 7001035870 Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 7001035870  Meetin With Bangalore Esc...Bangalore Call Girls Nelamangala Number 7001035870  Meetin With Bangalore Esc...
Bangalore Call Girls Nelamangala Number 7001035870 Meetin With Bangalore Esc...
 
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy Girls
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy GirlsCall Girls In Andheri East Call 9920874524 Book Hot And Sexy Girls
Call Girls In Andheri East Call 9920874524 Book Hot And Sexy Girls
 

Unit 2 Carbohydrates

  • 1. Program: B.Sc Nursing, Second Year BNSG-201 Nutrition & Biochemistry Unit No.2 Carbohydrates Topic-Carbohydrates Lecture No. 1 Dr. Sudharani B Banappagoudar Professor, SONS/OBG 1 BNSG 201
  • 2. NUTRITION - UNIT II Carbhodyrates 2 BNSG 201
  • 3. Carbohydrates Composed of carbon, hydrogen, and oxygen, and “constitute the main source of energy for all body functions, particularly brain functions, and are necessary for the metabolism of other nutrients” (Mosby 260). Carbohydrate providing 4 Kcals per one gram Carbohydrate is also essential for the oxidation of fats and for the synthesis of certain non-essential amino acids 3 BNSG 201 <SELO: 1,4,9,13> <Reference No.: R1,R3>
  • 4. Outline • Introduction • Carbohydrates, Types, Digestion, Absorption, Metabolism • Sources , Functions, RDA • Deficiency • Learning outcomes • Exercise • References 4 BNSG 201
  • 5. Can you live without sugar? Soda/Punch Cookies Candy Chocolate Desserts Sugary Cereals Ice cream 5 BNSG 201 <SELO: 1,4,9,13> <Reference No.: R1,R3>
  • 6. Carbohydrates It is the easiest form of food to convert into energy. Ingested carbohydrates are turned into glucose, which circulates in the bloodstream being readily available, and into glycogen which is stored in the liver and muscle cells, for later use. 6 BNSG 201 <SELO: 1,4,9,13> <Reference No.: R1,R3>
  • 7. Carbohydrates  Energy Food  Starch, Sugar  Least Expensive  Plentiful Available  Easily Digested  Organic Compound,CnH2nOn  Widely distributed in plant food 7 7 BNSG 201 <SELO: 1,4,9,13> <Reference No.: R1,R3>
  • 8. CARBOHYDRATES Carbohydrates give the body energy. They are the best source of fuel for the body. Carbohydrates also help to digest protein and fat. 8 BNSG 201 <SELO: 1,4,9,13> <Reference No.: R1,R3>
  • 9. CARBOHYDRATES Carbs Protein Fats 45-65% of our food should come from carbohydrates. If we eat more carbohydrates than are needed for energy, the extra is stored in the liver or in the tissues as fat.
  • 10. Carbohydrates are grains, fruits, vegetables, legumes and sugar.
  • 11. Carbohydrate Carbohydrate, class of naturally occurring carbonyl compounds (aldehydes or ketones) that also contain several hydroxyl groups. It may also include their derivatives which produce such compounds on hydrolysis. They are the most abundant organic molecules in nature and also referred to as “saccharides”. The carbohydrates which are soluble in water and sweet in taste are called as “sugars”. They are the most abundant organic molecules in nature and also referred to as “saccharides”.
  • 12. Objectives <SELO: 1,4,9,13> <Reference No.: R1,R2> 12 BNSG 201 By the end of this chapter, you will be able to: • Carbohydrates, Types, Digestion, Absorption, Metabolism • Sources , Functions, RDA • Deficiency
  • 13. Introduction Carbohydrates are one of the three main classes of foods and a source of energy. Carbohydrates are mainly sugars and starches that the body breaks down into glucose (a simple sugar that the body can use to feed its cells). Carbohydrates are probably the most abundant and widespread organic substances in nature, and they are essential constituents of all living things. Carbohydrates are formed by green plants from carbon dioxide and water during the process of photosynthesis. Carbohydrates serve as energy sources and as essential structural components in organisms; in addition, part of the structure of nucleic acids, which contain genetic information, consists of carbohydrate.
  • 14. Carbohydrate Composition A carbohydrate is a biomolecule consisting of carbon (C), hydrogen (H) and oxygen (O) atoms, usually with a hydrogen–oxygen atom ratio of 2:1 (as in water) and thus with the empirical formula Cm(H2O)n .
  • 15. Structural Representation of Carbohydrates The carbohydrates can be structurally represented in any of the three forms: 1.Open chain structure. It is the long straight-chain form of carbohydrates. 2.Hemi-acetal structure. Here the 1st carbon of the glucose condenses with the -OH group of the 5th carbon to form a ring structure. 3.Haworth structure. It is the presence of the pyranose ring structure
  • 16. Properties of Carbohydrates 1.Physical Properties of Carbohydrates a. Stereoisomerism – Compound sharing the same structural formula but they differ in spatial configuration. Example: Glucose has two isomers with respect to the penultimate carbon atom. They are D-glucose and L-glucose. b. Optical Activity – It is the rotation of plane-polarized light forming (+) glucose and (-) glucose. c. Diastereo isomers – It the configurational changes with regard to C2, C3, or C4 in glucose. Example: Mannose, galactose. d. Annomerism – It is the spatial configuration with respect to the first carbon atom in aldoses and second carbon atom in ketoses.
  • 17. 2.Chemical Properties of Carbohydrates a.Osazone formation: Osazone are carbohydrate derivatives when sugars are reacted with an excess of phenylhydrazine. eg. Glucosazone b.Benedict’s test: Reducing sugars when heated in the presence of an alkali gets converted to powerful reducing species known as enediols. When Benedict’s reagent solution and reducing sugars are heated together, the solution changes its color to orange-red/ brick red. c.Oxidation: Monosaccharides are reducing sugars if their carbonyl groups oxidize to give carboxylic acids. In Benedict’s test, D-glucose is oxidized to D-gluconic acid thus, glucose is considered a reducing sugar. d.Reduction to alcohols: The C=O groups in open-chain forms of carbohydrates can be reduced to alcohols by sodium borohydride, NaBH4, or catalytic hydrogenation (H2, Ni, EtOH/H2O). The products are known as “alditols”. Properties of Carbohydrates
  • 19. Simple Carbohydrates Simple carbohydrates are quick energy sources. They come from sugar. They do not usually supply any other nutrients or fiber.
  • 20. Simple Sugars Glucose or blood sugar is the basic source of energy for all living things. Sucrose or table sugar is made from sugar beets or sugar cane. Fructose is sugar found in fruit, honey and vegetables. Maltose is grain starch broken down into sugar. Lactose is milk sugar.
  • 21. Complex Carbohydrates Complex carbohydrates supply longer lasting energy, as well as other nutrients and fiber that the body needs. They are a better choice.
  • 22. Complex Carbohydrates Complex carbohydrates come from starchy foods such as whole grains, flour, seeds, nuts, vegetables and fruits.
  • 23. Although a number of classification schemes have been devised for carbohydrates, the division into four major groups— 1.Monosaccharides, 2.Disaccharides, 3.Oligosaccharides, and 4.Polysaccharides. Classification of Carbohydrates
  • 24. Monosaccharide  One Sugar Unit  Important Single Sugar are Glucose, Fructose, Galactose Glucose (Dextrose): Give Energy for body Activity It is primary Fuel of Cell It usually not found in Diet (Corn Syrup) Produce from Starch.
  • 25. Monosaccharide Fructose: Fruit, Honey Sweetest of Simple Sugar Soft drink, Ready to use Cereals, Desserts Galactose: Milk Sugar
  • 26. Monosaccharides Monosaccharides The building blocks of all simplest group carbohydrates are simple sugars called monosaccharides since they cannot be further hydrolyzed . A monosaccharide can be a polyhydroxy aldehyde (aldose) or a polyhydroxy ketone (ketose). Colorless, crystalline solid which are soluble in water and insoluble in a non-polar solvent. These are compound which possesses a free aldehyde or ketone group. Most monosaccharides, or simple sugars, are found in grapes, other fruits, and honey. Although they can contain from three to nine carbon atoms, the most common representatives consist of five or six joined together to form a chainlike molecule. Three of the most important simple sugars—glucose(also known as dextrose, grape sugar, and corn sugar), fructose (fruit sugar), and galactose—have the same molecular formula, (C6H12O6), but, because their atoms have different structural arrangements, the sugars have different characteristics; i.e., they are isomers.
  • 27. The general formula is Cn(H2O) nor CnH2nOn. These are compound which possesses a free aldehyde or ketone group. They are classified according to the number of carbon atoms they contain and also on the basis of the functional group present.The monosaccharides thus with 3,4,5,6,7… carbons are called trioses, tetroses, pentoses, hexoses, heptoses, etc., and also as aldoses or ketoses depending upon whether they contain aldehyde or ketone group. Examples: Glucose, Fructose, Erythrulose, Ribulose. Monosaccharides
  • 28. Properties of Monosaccharides Most monosaccharides have a sweet taste (fructose is sweetest; 73% sweeter than sucrose). They are solids at room temperature. They are extremely soluble in water: – Despite their high molecular weights, the presence of large numbers of OH groups make the monosaccharides much more water-soluble than most molecules of similar MW. Glucose can dissolve in minute amounts of water to make a syrup (1 g / 1 ml H2O). Monosaccharides
  • 29.  Are Simple Single Sugar  Which require no Digestion  Quickly absorbed from Intestine to Blood and carried to the Liver  In Liver Converted into Glycogen and stored. Characteristics of Monosaccharide
  • 30. Disaccharide  Are Simple Double Sugar  Which Link with two Single Sugar  Important Disaccharides are Sucrose, Lactose &Maltose Sucrose = Glucose + Fructose e.g. Sugar, Brown Sugar Sugarcane, Sugar beet.
  • 31. Disaccharide Lactose = Glucose + Galactose e.g. Milk Sugar Lactose is less soluble Less Sweet than Sucrose Maltose = Glucose + Glcose Starch => Maltose => Glucose Sugar alcohols such Sorbitol Used in Candies, Beverages.
  • 32. Disaccharides Disaccharides Two molecules of a simple sugar that are linked to each other form a disaccharide, or double sugar. The disaccharide sucrose, or table sugar, consists of one molecule of glucose and one molecule of fructose; the most familiar sources of sucrose are sugar beets and cane sugar. Milk sugar, or lactose, and maltose are also disaccharides. Before the energy in disaccharides can be utilized by living things, the molecules must be broken down into their respective monosaccharides.
  • 33. Oligosaccharides Oligosaccharides Oligosaccharides are compound sugars that yield 2 to 10 molecules of the same or different monosaccharides on hydrolysis are rather infrequently found in natural sources, although a few plant derivatives have been identified. .The monosaccharide units are joined by glycosidic linkage. Based on the number of monosaccharide units, it is further classified as disaccharide, trisaccharide, tetrasaccharide etc.
  • 34. Oligosaccharides yielding 2 molecules of monosaccharides on hydrolysis is known as a disaccharide, and the ones yielding 3 or 4 monosaccharides are known as trisaccharides and tetrasaccharides respectively and so on. The general formula of disaccharides is Cn(H2O)n-1and that of trisaccharides is Cn(H2O)n-2 and so on. Examples: Disaccharides include sucrose, lactose, maltose, etc. Oligosaccharides
  • 35. Polysaccharides(the term means many sugars) Polysaccharides(the term means many sugars) They are also called as “glycans”. Polysaccharides represent most of the structural and energy-reserve carbohydrates found in nature. Large molecules that may consist of as many as 10,000 monosaccharide on hydrolysis & these units are linked together, polysaccharides vary considerably in size, in structural complexity, and in sugar content. Polysaccharides differ from each other in the identity of their recurring monosaccharide units, in the length of their chains, in the types of bond linking units and in the degree of branching.
  • 36. Cellulose, the principal structural component of plants, is a complex polysaccharide comprising many glucose units linked together; it is the most common polysaccharide. The starch found in plants and the glycogen found in animals also are complex glucose polysaccharides. Starch (from the Old English word stercan, meaning “to stiffen”) is found mostly in seeds, roots, and stems, where it is stored as an available energy source for plants. Plant starch may be processed into foods such as bread, or it may be consumed directly—as in potatoes, for instance. Glycogen, which consists of branching chains of glucose molecules, is formed in the liver and muscles of higher animals and is stored as an energy source. They are primarily concerned with two important functions ie. 1. Structural functions 2. The storage of energy. Polysaccharides(the term means many sugars)
  • 37. Fiber Insoluble Fiber • Cellulose • Hemicellulose • Lignin Occurrence • Cellwall • Secretion& Cell • Woodypart of plants Source • Wheatflour, Bran • Bran&Gram • Vegetables, Fruits &Wheat
  • 38. Fiber Soluble Fiber • Gums • Pectins Occurrence • SpecialCell Secretion • Woodypart ofplants Source • Oats, Legumes, Guar,Barley • Apple, Guavas, Citrus Fruits
  • 39. Action of Fiber in the Body Insoluble Fiber • Accelerate GI Transit • Increase Fecal Weight • Promotes bowel movement • Slow Starch Hydrolysis • Delays Glucose Absorption. Soluble Fiber • Delays GI Transit • Lowers blood Cholesterols • Delays Glucose absorption.
  • 40. Digestion and absorption of carbohydrates Digestion and absorption of carbohydrates The digestion of carbohydrates begins in the mouth by Ptyalin (amylase) produced by the salivary glands. No carbohydrate digestion takes place in the stomach. Digestion occurs mainly in the small intestine through the action of pancreatic and intestinal juices: ƒ Amylase ƒ Lactase ƒ Sucrase ƒ Maltase Dextrin is degradation products of starch in which the glucose chains have been broken down to smaller units by partial hydrolysis. ƒ Dextran is a carbohydrate polymer obtained from bacterial cell wall. This has no part in dietetics but is used in medicine as plasma expander.
  • 41. Digestion Mouth Salivary amylase Stomach Fibers and satiety Small Intestine -Maltase, sucrase, lactase Pancreas Pancreatic amylase Large Intestine -Fermentation of viscous fibers  Water, gas, short-chain fatty acid production
  • 42. Digestion of Carbohydrates  Mouth :Chewing – Breaks up food  Saliva - Amylase  Pancreatic Amylase  Intestinal Amylase Dietary Carbohydrate/ Starch Amylase Maltose + Isomaltose
  • 43. Digestion ofCarbohydrates  SmallIntestine Maltose → Maltase → Glucose + Glucose Lactose → Lactase → Glucose + Galactose Sucrose → Surcease → Glucose + Fructose.
  • 44.
  • 45. Carbohydrate Storage : Glucose → In Liver & Muscle → Glycogen Metabolism : • Anabolism 1. Glucose → Glycogen 2. Glucose → Fat (Lipogenesis) • Catabolism 1. Glucose →ATP 2. Glycogen → Glucose.
  • 46. Summary of carbohydrate digestion Site of action Carbohydrate Enzyme End – product Mouth Starch Amylase in saliva (ptyalin) Dextrin- maltose Glucose Small intestine Starch Amylase in pancreatic juice Dextrin- maltose glucose maltose Glucose Dextrin Enzyme in brush border of small intestine Maltose Sucrose Lactose Maltase Sucrase Lactase Glucose Glucose & fructose Glucose & Galactose
  • 49. Metabolism Glucose in the Body Used for energy – fuels most of the body’s cells Stored as glycogen – 1/3 in the liver and 2/3 in muscles Made from protein – gluconeogenesis Converted to fat – when in excess of body’s needs
  • 50. Constancy of Blood Glucose Regulating hormones – maintain glucose homeostasis 1. Insulin – moves glucose from the blood into cells 2. Glucagon – signals the liver to release glucose into the blood 3. Epinephrine – released when emergency fuel needed
  • 52. Absorption Carbohydrates are absorbed from small intestine mainly as monosaccharides, namely glucose, galactose & fructose. Through sodium co-transport mechanism glucose and galactose are absorbed into portal blood. Fructose absorption takes place through the epithelium of intestine which is facilitated by diffusion. glucose, galactose & fructose absorbed in the intestines pass through the portal circulation to the liver. In liver galactose ,fructose and some part of glucose into glycogen. A part of glucose passess into the general circulation & to the various tissues for being oxidized and used as energy. Some part of glucose is stored in liver & muscles and some portion converted to fat which is stored in adipose tissues. This oxidation occurs in 2 stages ie Glycolysis and a series of reaction of Kreb Cycle
  • 53. In Health and with normal diet, the available carbohydrate is digested and absorbed completely in the small intestine. If an excess of unabsorbed carbohydrate arise due to a disorder of the absorption mechanisms or occasionally to excessive intake, the osmotic pressure (effects) leads to retention of fluids in the lumen and as the result there will be watery diarrhoea. This diarrhoea is known as osmotic diarrhoea. The tissues use as fuel a mixture of glucose and fatty acids. But the brain normally uses only glucose and requires around 80g daily. In starvation glucose may be provided by gluconeogenesis from the amino acids in tissues proteins, mainly from muscle proteins, but fats cannot be converted into glucose. With prolonged starvation the brain adapts and can then utilize fatty acids and ketone. Absorption
  • 54. The two hormones, which control the metabolisms of carbohydrates, are insulin and glucagons ƒ Insulin is secreted by the beta cells of the islets of Langerhans and the secretion is stimulated by: – Hyperglycemias – Parasympathetic nervous activity Function of insulin To facilitate glucose transport to the liver and muscle cells To facilitate formation of glycogen in the liver and muscle cells To incorporate formation of protein from the amino acids. Absorption
  • 55. Functions Functions Carbohydrates are widely distributed molecules in plant and animal tissues. In plants and arthropods, carbohydrates from the skeletal structures, they also serve as food reserves in plants and animals. They are important energy source required for various metabolic activities, the energy is derived by oxidation.
  • 56. Functions Some of their major functions include: 1. Living organisms use carbohydrates as accessible energy to fuel cellular reactions. They are the most abundant dietary source of energy (4kcal/gram) for all living beings. 2. Carbohydrates along with being the chief energy source, in many animals, are instant sources of energy. Glucose is broken down by glycolysis/ Kreb’s cycle to yield ATP. 3. Serve as energy stores, fuels, and metabolic intermediates. It is stored as glycogen in animals and starch in plants. 4. Stored carbohydrates act as an energy source instead of proteins. 5. They form structural and protective components, like in the cell wall of plants and microorganisms. Structural elements in the cell walls of bacteria (peptidoglycan or murein), plants (cellulose) and animals (chitin).
  • 57. Functions 1. Carbohydrates are intermediates in the biosynthesis of fats and proteins. 2. Carbohydrates aid in the regulation of nerve tissue and are the energy source for the brain. 3. Carbohydrates get associated with lipids and proteins to form surface antigens, receptor molecules, vitamins, and antibiotics. 4. Formation of the structural framework of RNA and DNA (ribonucleic acid and deoxyribonucleic acid). 5. They are linked to many proteins and lipids. Such linked carbohydrates are important in cell- cell communication and in interactions between cells and other elements in the cellular environment. 6. In animals, they are an important constituent of connective tissues. 7. Carbohydrates that is rich in fiber content help to prevent constipation. 8. Also, they help in the modulation of the immune system.
  • 58.  Energy Supply Brain,Cell  SpareProteins  Synthesis of Substances Non-essentialAminoacids Glycoproteins Glycolipids  Promote complete lipid metabolism  Provide Bulk Fiberin the Diet. Functions
  • 59.  Energy Supply for body function  Essential for the Oxidation of Fats  Proteins sparing action  Provide Carbon for synthesis of Non-essential Amino acids  Are present in some tissue Constituents  Add flavour to Diet  Nucleic acid of Connective tissue Matrix , Galactosides of Nerve Tissue  Necessary for proper functioning of CNS  Adequate hepatic Glycogen Storage enhances normal liver detoxification ability. Functions
  • 60. Caloric Value One Kilo Calorie is defined as the amount of heat required to raise the temperature of 1 kg of water by 1 degree Celsius. 1 gm of carbohydrates on complete oxidation yields 4 kcal of energy. Recommended Dietary Allowances Normally 60-70 per cent of our total calories should come from carbohydrates. 275-300 grams of carbohydrates in 2000 kcal Functions
  • 61. Source of Carbohydrates  Sugar : Honey, Fruits, Soft Drink, Milk, Sugar,  Starch: Cereals, Pasta, Flour, Bread, Potatoes,Root Vege., Pulses  Fiber: Cereals, Bran, Outer skin of Fruits & Vege., Brown rice, Oatmeals Pectin: Fruits.
  • 62. SourceofCarbohydrates Carbohydrates Food Source Glucose Fruits, Honey, CornSyrup Fructose Fruits,Honey Galactose Milk Maltose Backed Starch Sucrose Cane &Beat Sugar Lactose Milk Product Starch &Dextrin Grains,Root &Tubers,Legumes Glycogen Meat Product, SeaFood Cellulose Vegetables, Outer coat ofSeed Pectin and gums Fruits, PlantSecretion,seeds.
  • 63. Dietary Sources All sources like wheat, rice, jowar, bajra, ragai etc Roots and tubers like potato and sweet potato. Sugarcane, honey, jaggery, and sago. Vegetables like beans, peas, carrots, tomatoes, cabbage, & spinach Fruits like bananas, grapes, oranges & strawberries.
  • 64. Constancy of Blood Glucose Diabetes Type 1 diabetes Failure of insulin production Type 2 diabetes Obesity Hypoglycemia Rare in healthy people Glycemic response Glycemic index
  • 66. Health Effects of Sugar Sugar in excess 1. Contains no nutrients and may contribute to malnutrition 2. Causes dental caries (tooth decay) 3. Does not cause, but can contribute to: obesity, diabetes, heart disease, & behavorial problems
  • 67. Accusations Against Sugars Sugar causes obesity Sugar causes heart disease
  • 68. Accusations Against Sugars Sugar causes misbehavior in children and criminal behavior in adults Sugar causes cravings and addictions serotonin
  • 69. Recommended Intakes of Sugars DRI No more than 25% of total daily energy intake -Limit added sugars to <10% of total energy intake Copyright 2005 Wadsworth Group, a division of Thomson Learning
  • 70. Health Effects • Complex carbohydrates & fiber may reduce the risk of: -Heart disease -Diabetes -GI health -Cancer -Weight Management
  • 71. Health Effects How? Diets high in complex CHO tend to be: 1. Lower in fat and calories 2. Higher in fiber, vitamins, & minerals
  • 72. Soluble Fibers Lower blood cholesterol by binding dietary cholesterol so less absorbed Slow glucose absorption Slow transit of food through upper GI tract Holds moisture in stools, softening them Lower risk of heart disease Lower risk of diabetes
  • 73. Soluble Fibers Gums & mucilages, pectins, psyllium Sources Whole-grains, fruits, legumes, seeds and husks, vegetables Extracted and used as food additives
  • 74. Insoluble Fibers Increase fecal weight - helps form soft, bulky stools which improves G.I. motility & reduces risk of constipation, hemorrhoids, diverticulosis & colon cancer Speed fecal passage through colon Provide bulk and feelings of fullness (satiety)
  • 75. Insoluble Fibers Cellulose, lignins, hemiculloses Sources Brown rice, fruits, legumes, seeds, vegetables, wheat bran, whole grains Extracted and used as food additives
  • 76. Recommended Intakes of Carbohydrates & Fibers RDA for carbohydrate 130 g/day 45% - 65% total daily energy intake with emphasis on complex -Daily Value: 300 g/day Fiber Daily Value: 25 g/day AI: 14 g/1000 kcal/day
  • 77. Dietary Recommendations Example: If 2000 kcal diet, then: 1100-1200 kcals as CHO (275-300 grams) with < 200 kcals as “added sugar” (50 grams) One 12 oz. soft drink has 36-40 gms sugar 0ne tsp. sugar weighs 4 gms = 9-10 tsps!
  • 78. Malnutrition ofCarbohydrate Deficiency : Low body weight Accumulation of large amount of ketone bodies in the body Overconsumption : • Increase dental caries • Cause Obesity • Large amount of sugar – Gastric ulcer • Depress appetite – Soft Drink • Increase blood Triglyceride – Lead to Heart Disease.
  • 79. Alternative Sweeteners Two Categories 1. Sugar Alcohols – mannitol, sorbitol, xylitol 2. Artificial sweeteners – sugar substitutes (calorie-free); in moderation, useful for blood sugar & weight control
  • 80. Alternative Sweeteners Sugar Alcohols 1. CHOs that provide less energy than sucrose (2-3 kcals/gm) because not completely absorbed 2. May cause gas, abdominal discomfort, diarrhea 3. Less cariogenic than sugar
  • 82. LEARNING OUTCOMES BNSG 201 82 The student will be able to Explain National health Policy its Goals
  • 83. Student effective learning outcome 1.Application of concepts of topic & it’s technological application. 2.Ability to interpret and analyze data into information and to design and conduct experiments. 3.Understanding available tools and products and ability to use it effectively. 4.Adaptive Thinking Skills 83 BNSG 201
  • 84. Reference 1.Essentials of nutrition and biochemistry for basic B sc nursing I clement 2. Food & nutrition for nurses (B sc nursing) by Ruma Singh 3. A textbook of nutrition B.Sc(n) first year Darshan Soni 84 BNSG 201