Vitamin b2
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Introduction about Vitamin B2, Chemistry of Riboflavin, Biochemical Functions of Riboflavin, Recommended Dietary Allowance of Vitamin B2, Dietary Sources of Riboflavin, Deficiency Symptoms of Vitamin B2, Synthesis of FMN, FAD from Riboflavin pathway, Coenzymes of Riboflavin.
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RIBOFLAVIN (B2)
Riboflavin, also known as vitamin B2, is a yellow pigment that contains a 6,7-dimethylisoalloxazine ring. It functions as an important cofactor in redox reactions as FMN and FAD. Riboflavin is absorbed in the small intestine and transported to tissues like the liver, where it is converted to its coenzyme forms. Deficiency can cause cheilosis, glossitis and corneal vascularization. Rich dietary sources include milk, meat, eggs and liver.
Riboflavin ( B2) MUHAMMAD MUSTANSAR
Riboflavin (B2) is a yellowish-green fluorescent compound that is water soluble and derived from ribose sugar. It is involved in many oxidation-reduction reactions as part of the coenzymes FMN and FAD. Good dietary sources include plant foods like rice, pulses, and green vegetables, as well as animal foods like liver, eggs, and milk. Riboflavin deficiency can cause cracks at the corners of the mouth, a smooth purple tongue, scaly skin rashes, and corneal vascularization of the eyes.
Riboflavin, VITAMIN B2
Vitamin B2, also known as riboflavin, is required for metabolism and energy production. Good dietary sources include milk, cheese, eggs, leafy greens, almonds, and soybeans. The recommended daily amount is 1.5 mg. Riboflavin is absorbed in the small intestine and circulates in the active forms FMN and FAD, which act as coenzymes in over 150 oxidation-reduction reactions involved in metabolism. Deficiency can cause symptoms like cracked lips, inflammation of the tongue, mouth ulcers, dry and scaling skin, and eye irritation.
BIOTIN (B7)
Biotin is a water-soluble B vitamin and coenzyme that is essential for carboxylation reactions in metabolism. It is required by the enzymes pyruvate carboxylase, acetyl-CoA carboxylase, propionyl-CoA carboxylase, and β-methylcrotonyl-CoA carboxylase, which are involved in glucose metabolism, fatty acid synthesis, and amino acid catabolism. Biotin deficiency is rare in humans due to its presence in many foods and synthesis by gut bacteria, but can cause dermatitis, weakness, and nausea. Avidin in raw egg whites binds strongly to biotin and prevents its absorption.
Vitamin b2
Riboflavin, also known as vitamin B2, is a water-soluble vitamin that is part of the B vitamin group. It plays an important role in metabolism as the central component of the cofactors FAD and FMN, which are required for many enzyme reactions. Sources of riboflavin include liver, dairy products, eggs, meat, and leafy greens. Deficiency can cause lesions on the skin, eyes, and mouth as well as eye irritation and sensitivity to light. Daily requirements vary from 0.4 to 2.2 mg depending on age, sex, and pregnancy/lactation status.
Vitamin B2 (RIBOFLAVIN)
Vitamin B2, also known as riboflavin, is an essential component of coenzymes involved in redox reactions in the body. It acts as a precursor to FMN and FAD, which are cofactors for redox enzymes. Deficiency can result from poor intake, malabsorption, drug interactions, and genetic defects affecting flavin metabolism. Symptoms include sore throat, cheilosis, and glossitis. Status is assessed by urinary riboflavin levels, erythrocyte glutathione reductase activity, and direct measurement of flavins in plasma and erythrocytes.
Vitamin b2 riboflavin
Vitamin B2, also known as riboflavin, is a water-soluble vitamin that is essential for human health. It contains a heterocyclic ring structure and helps the body metabolize fats, proteins, and carbohydrates to produce energy. Riboflavin also assists other vitamins in being utilized by the body and is important for vision, growth, and red blood cell production. Deficiency can result in cracks in the mouth or tongue, though it is uncommon except in cases of other vitamin deficiencies or chronic alcoholism. Good dietary sources include dairy products, eggs, leafy greens, mushrooms, and whole grains. The recommended daily intake varies from 0.4 to 1.6 mg depending on
Riboflavin VITAMIN B2
Vitamin B2, also known as riboflavin, is a water-soluble vitamin that plays an important role in metabolism. It exists in tissues tightly bound to enzymes called flavoproteins and its active forms are FMN and FAD, which are involved in oxidation-reduction reactions. Good dietary sources include liver, eggs, dairy products, fish, and green leafy vegetables. A riboflavin deficiency can cause symptoms affecting the skin and mucous membranes like angular stomatitis or a magenta colored tongue.
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RIBOFLAVIN (B2)
Riboflavin, also known as vitamin B2, is a yellow pigment that contains a 6,7-dimethylisoalloxazine ring. It functions as an important cofactor in redox reactions as FMN and FAD. Riboflavin is absorbed in the small intestine and transported to tissues like the liver, where it is converted to its coenzyme forms. Deficiency can cause cheilosis, glossitis and corneal vascularization. Rich dietary sources include milk, meat, eggs and liver.
Riboflavin ( B2) MUHAMMAD MUSTANSAR
Riboflavin (B2) is a yellowish-green fluorescent compound that is water soluble and derived from ribose sugar. It is involved in many oxidation-reduction reactions as part of the coenzymes FMN and FAD. Good dietary sources include plant foods like rice, pulses, and green vegetables, as well as animal foods like liver, eggs, and milk. Riboflavin deficiency can cause cracks at the corners of the mouth, a smooth purple tongue, scaly skin rashes, and corneal vascularization of the eyes.
Riboflavin, VITAMIN B2
Vitamin B2, also known as riboflavin, is required for metabolism and energy production. Good dietary sources include milk, cheese, eggs, leafy greens, almonds, and soybeans. The recommended daily amount is 1.5 mg. Riboflavin is absorbed in the small intestine and circulates in the active forms FMN and FAD, which act as coenzymes in over 150 oxidation-reduction reactions involved in metabolism. Deficiency can cause symptoms like cracked lips, inflammation of the tongue, mouth ulcers, dry and scaling skin, and eye irritation.
BIOTIN (B7)
Biotin is a water-soluble B vitamin and coenzyme that is essential for carboxylation reactions in metabolism. It is required by the enzymes pyruvate carboxylase, acetyl-CoA carboxylase, propionyl-CoA carboxylase, and β-methylcrotonyl-CoA carboxylase, which are involved in glucose metabolism, fatty acid synthesis, and amino acid catabolism. Biotin deficiency is rare in humans due to its presence in many foods and synthesis by gut bacteria, but can cause dermatitis, weakness, and nausea. Avidin in raw egg whites binds strongly to biotin and prevents its absorption.
Vitamin b2
Riboflavin, also known as vitamin B2, is a water-soluble vitamin that is part of the B vitamin group. It plays an important role in metabolism as the central component of the cofactors FAD and FMN, which are required for many enzyme reactions. Sources of riboflavin include liver, dairy products, eggs, meat, and leafy greens. Deficiency can cause lesions on the skin, eyes, and mouth as well as eye irritation and sensitivity to light. Daily requirements vary from 0.4 to 2.2 mg depending on age, sex, and pregnancy/lactation status.
Vitamin B2 (RIBOFLAVIN)
Vitamin B2, also known as riboflavin, is an essential component of coenzymes involved in redox reactions in the body. It acts as a precursor to FMN and FAD, which are cofactors for redox enzymes. Deficiency can result from poor intake, malabsorption, drug interactions, and genetic defects affecting flavin metabolism. Symptoms include sore throat, cheilosis, and glossitis. Status is assessed by urinary riboflavin levels, erythrocyte glutathione reductase activity, and direct measurement of flavins in plasma and erythrocytes.
Vitamin b2 riboflavin
Vitamin B2, also known as riboflavin, is a water-soluble vitamin that is essential for human health. It contains a heterocyclic ring structure and helps the body metabolize fats, proteins, and carbohydrates to produce energy. Riboflavin also assists other vitamins in being utilized by the body and is important for vision, growth, and red blood cell production. Deficiency can result in cracks in the mouth or tongue, though it is uncommon except in cases of other vitamin deficiencies or chronic alcoholism. Good dietary sources include dairy products, eggs, leafy greens, mushrooms, and whole grains. The recommended daily intake varies from 0.4 to 1.6 mg depending on
Riboflavin VITAMIN B2
Vitamin B2, also known as riboflavin, is a water-soluble vitamin that plays an important role in metabolism. It exists in tissues tightly bound to enzymes called flavoproteins and its active forms are FMN and FAD, which are involved in oxidation-reduction reactions. Good dietary sources include liver, eggs, dairy products, fish, and green leafy vegetables. A riboflavin deficiency can cause symptoms affecting the skin and mucous membranes like angular stomatitis or a magenta colored tongue.
Vitamin b1
Vitamin B1 introduction, chemistry, Biochemical role, Dietary sources, Recommended dietary Allowance, Deficiency symptoms of Vitamin B1, Hypervitaminosis, Toxicity of Vitamin B1
Vitamine B1 Thaimine Pyrophosphate
This document summarizes information about vitamin B1 (thiamine) and its active coenzyme form, thiamine pyrophosphate (TPP). It discusses the history of thiamine discovery and its chemical structure. Thiamine is converted to TPP in the liver and intestinal mucosa by the enzyme thiamine pyrophosphokinase using ATP. TPP acts as a coenzyme, transferring aldehyde groups in metabolic reactions. Sources of thiamine are mentioned and a deficiency can cause beriberi. Functions include roles in growth, nervous system maintenance, and metabolism.
VITAMINB2[RIBOFLAVIN] MEDICINAL CHEMISTRY,BY P.RAVISANKAR [SOURCES OF VITAMI...
VITAMINB2[RIBOFLAVIN] MEDICINAL CHEMISTRY,BY P.RAVISANKAR [SOURCES OF VITAMIN B2,CHEMISTRY OF VITAMIN B2,PHYSIOLOGICAL IMPORTANCE,SYNTHESIS OF RIBOFLAVIN,REACTIONS, VITAMIN B2 DEFICIENCY SYMPTOMS,FUNCTIONS,USES OF RIBOFLAVIN.
BY P.RAVISANKAR,VIGNAN PHARMACY COLLEGE, VADLAMUDI, GUNTUR, ANDHRA PRADESH, INDIA.
Vitamin E
Vitamin E is a fat-soluble vitamin that exists as both tocopherols and tocotrienols. It is an important antioxidant that protects cell membranes from oxidative damage by reacting with lipid radicals produced in the body during oxidation. The most biologically active form is alpha-tocopherol. Vitamin E is absorbed with dietary fat and transported throughout the body associated with lipoproteins. A deficiency can cause hemolytic anemia, muscular dystrophy, and neurological problems due to increased lipid peroxidation in tissues.
vitamin B3 niacin
Vitamin B3, also known as niacin or nicotinic acid, was first isolated in 1911 and plays important roles in the body. It was discovered to prevent the disease pellagra. Niacin is found in many foods like barley, potatoes, and cashews. A deficiency can cause symptoms like a coated tongue, mouth sores, and skin lesions. Severe deficiencies can lead to neurological and mental health issues. Niacin helps metabolize proteins and carbohydrates, supports circulation and the nervous system, and maintains healthy skin and digestion. It has therapeutic uses for conditions like high cholesterol, migraines, and heart disease.
PYRIDOXINE (B6)
Pyridoxine (vitamin B6) is a water-soluble vitamin that exists as three closely related compounds - pyridoxine, pyridoxal, and pyridoxamine. All three can be converted to the active coenzyme form, pyridoxal phosphate (PLP), which is involved in many important metabolic processes like amino acid metabolism, synthesis of neurotransmitters and heme. Deficiency of vitamin B6 can cause neurological, dermatological and hematological issues due to impairment of these metabolic pathways. While essential for many functions, excess intake of vitamin B6 beyond recommended limits may cause sensory neuropathy.
Vitamin b5, pantothenic acid
This document summarizes information about vitamin B5 (pantothenic acid). It discusses the discovery of pantothenic acid and its role in Coenzyme A (CoA), the structure of pantothenic acid and CoA, the synthesis of CoA from pantothenic acid, the biochemical functions of pantothenic acid through CoA in various metabolic pathways, dietary sources of pantothenic acid, and symptoms of deficiency. The recommended daily intake of pantothenic acid for adults is 5-10 mg, and while deficiency symptoms have not been reported in humans, deficiency in experimental animals can cause issues like anemia and fatty liver.
Folic acid
Folic acid, also known as vitamin B9, is a water-soluble vitamin that plays several important roles in the body. It is required for cell growth and DNA synthesis, and is especially important during periods of rapid cell division and growth like infancy and pregnancy. A deficiency in folic acid can lead to megaloblastic anemia and neural tube defects in newborns if a woman is deficient during pregnancy. Good dietary sources include leafy green vegetables, beans, oranges, and fortified grains.
Folic acid (B9)
Folic acid is a water-soluble B vitamin that acts as a coenzyme in single-carbon transfers in amino acid and nucleotide metabolism. It is required for DNA synthesis and cell division. A deficiency can lead to megaloblastic anemia due to impaired DNA synthesis. Rich dietary sources include green leafy vegetables. Folic acid supplementation is important during pregnancy to prevent neural tube defects in newborns.
NIACIN (B3)
Niacin, or vitamin B3, is an essential vitamin that acts as a coenzyme in many metabolic reactions related to energy production. It is synthesized from the amino acid tryptophan. Niacin deficiency causes the disease pellagra, with symptoms of dermatitis, diarrhea, and dementia. Treatment of pellagra involves niacin supplementation. Therapeutically, niacin is used to treat hypercholesterolemia and hypertriglyceridemia by lowering LDL and VLDL cholesterol levels and raising HDL levels.
Fad – Flavin Adenine Dinucleotide
flavin adenine dinucleotide (FAD) is a redox cofactor, more specifically a prosthetic group, involved in several important reactions in metabolism.
Vitamin b7 or biotin
Vitamin B7, also called biotin, is a water-soluble B-complex vitamin that was first identified in the 1920s and its structure was elucidated in the 1940s. It plays an important role in metabolism, immune function, hair and skin health, and nervous system function. Good dietary sources include beef liver, barley, soybeans and cauliflower. A daily intake of 100-300 mcg is recommended for adults to prevent deficiency symptoms like muscle weakness, fatigue, and skin disorders.
Vitamin b12
Vitamin B12, also called cobalamin, is a water-soluble vitamin that plays a key role in the functioning of the brain and nervous system. It is involved in DNA synthesis, fatty acid and amino acid metabolism. Vitamin B12 is produced by bacteria and archaea and is found naturally in animal products like meat, eggs and dairy. Deficiency can cause fatigue, neurological problems, and psychosis. It is used to treat deficiency, cyanide poisoning, and hereditary conditions.
Vitamin B3 Niacin
VITAMIN B3
GUL MUNEER
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Niacinamide 0R Nicotinamide
Vitamin P OR PP (pellagra preventive)
Pellagra preventive factor
Anti black tongue factor
Nicotinic acid
Vitamin G (after Goldberger’s death, vitamin B3 was some times called in his honor)
Structure of Vitamin B3
Function of Vitamin B3
DISCOVERY of Vitamin B3
PROPERTIES of Vitamin B3
Nicotinic Acid (Plant form)
CHEMISTRY of Vitamin B3
Sources of Vitamin B3
RECOMMENDED DAILY ALLOWANCE (RDA) of Vitamin B3
BIOCHEMICAL FUNCTIONS of Vitamin B3
Digestion and Absorption of Dietary Niacin
Metabolism of B-3
Deficiency of B3
Water soluble vitamins
Definition
Classification
Introduction
Types of WATER SOLUBLE vitamin
Public health significance
Dietary goals
Dietary guidelines
Vitamin C
the B Vitamins
Thiamin (Vitamin B1)
Riboflavin (Vitamin B2)
Niacin (Vitamin B3)
Pantothenic Acid
Vitamin B6
Folic Acid
Vitamin B12
Nutritional programmes in india
Vitamin c
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Vitamin b9
a ppt about vitamins especially about vitamin b9 or folate or folic acid
this is definitely helpful for medical students
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VITAMIN B1 THIAMINE MUHAMMAD MUSTANSAR
Thiamine, also known as vitamin B1, is an essential nutrient that plays a key role in carbohydrate metabolism. It consists of a pyrimidine ring connected to a thiazole ring. Thiamine acts as a cofactor for several enzymes involved in the breakdown of carbohydrates and the citric acid cycle. Deficiency of thiamine can cause diseases like beriberi, which presents as either "wet" beriberi with edema or "dry" beriberi with neurological symptoms. Treatment involves high doses of thiamine supplementation.
Tpp (coenzyme chemistry)
Thiamine pyrophosphate (TPP) is an important coenzyme that maintains normal heart and energy metabolism functions. TPP works as a coenzyme in several enzymatic reactions including pyruvate decarboxylase, transketolase, pyruvate dehydrogenase, and alpha ketoglutarate dehydrogenase. As a cofactor for pyruvate decarboxylase, TPP facilitates the decarboxylation of pyruvate to acetaldehyde. For transketolase, TPP transfers a two-carbon unit from xylulose 5-phosphate to ribose 5-phosphate, yielding sedoheptulose 7-phosphate and glyceraldehyde 3-phosphate. The mechanisms of these reactions
Vitamin B12
Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a key role in normal brain and nervous system function and blood formation. It was first discovered in the late 1920s as the substance that cured pernicious anemia. Vitamin B12 exists in several forms including cyanocobalamin, methylcobalamin, and hydroxocobalamin. It is produced through fermentation by microorganisms but not by plants or animals. Good dietary sources include meat, fish, eggs, and dairy products. Vitamin B12 deficiency can cause megaloblastic anemia and neurological problems if left untreated.
Riboflavin,flavoproteins and their clinical applications
A presentation in lucid-style on Riboflavin (vitamin B2), Flavoproteins and their clinical applications for MBBS , BDS , B Pham and Biotechnology students to facilitate easy leaning.
Absorption, transport and metabolism of riboflavin
Riboflavin is absorbed in the small intestine where coenzyme forms FMN and FAD are hydrolyzed to free riboflavin by intestinal enzymes. Free riboflavin is actively transported into intestinal cells and converted back to FMN by phosphorylation. Riboflavin enters circulation bound to proteins and is transported to tissues where it is converted to FMN and FAD coenzymes. Tissues store riboflavin primarily as FMN and FAD bound to flavoproteins. Unused coenzymes are broken back down to free riboflavin which is excreted primarily in urine.
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This document summarizes information about vitamin B1 (thiamine) and its active coenzyme form, thiamine pyrophosphate (TPP). It discusses the history of thiamine discovery and its chemical structure. Thiamine is converted to TPP in the liver and intestinal mucosa by the enzyme thiamine pyrophosphokinase using ATP. TPP acts as a coenzyme, transferring aldehyde groups in metabolic reactions. Sources of thiamine are mentioned and a deficiency can cause beriberi. Functions include roles in growth, nervous system maintenance, and metabolism.
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vitamin B3 niacin
Vitamin B3, also known as niacin or nicotinic acid, was first isolated in 1911 and plays important roles in the body. It was discovered to prevent the disease pellagra. Niacin is found in many foods like barley, potatoes, and cashews. A deficiency can cause symptoms like a coated tongue, mouth sores, and skin lesions. Severe deficiencies can lead to neurological and mental health issues. Niacin helps metabolize proteins and carbohydrates, supports circulation and the nervous system, and maintains healthy skin and digestion. It has therapeutic uses for conditions like high cholesterol, migraines, and heart disease.
PYRIDOXINE (B6)
Pyridoxine (vitamin B6) is a water-soluble vitamin that exists as three closely related compounds - pyridoxine, pyridoxal, and pyridoxamine. All three can be converted to the active coenzyme form, pyridoxal phosphate (PLP), which is involved in many important metabolic processes like amino acid metabolism, synthesis of neurotransmitters and heme. Deficiency of vitamin B6 can cause neurological, dermatological and hematological issues due to impairment of these metabolic pathways. While essential for many functions, excess intake of vitamin B6 beyond recommended limits may cause sensory neuropathy.
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This document summarizes information about vitamin B5 (pantothenic acid). It discusses the discovery of pantothenic acid and its role in Coenzyme A (CoA), the structure of pantothenic acid and CoA, the synthesis of CoA from pantothenic acid, the biochemical functions of pantothenic acid through CoA in various metabolic pathways, dietary sources of pantothenic acid, and symptoms of deficiency. The recommended daily intake of pantothenic acid for adults is 5-10 mg, and while deficiency symptoms have not been reported in humans, deficiency in experimental animals can cause issues like anemia and fatty liver.
Folic acid
Folic acid, also known as vitamin B9, is a water-soluble vitamin that plays several important roles in the body. It is required for cell growth and DNA synthesis, and is especially important during periods of rapid cell division and growth like infancy and pregnancy. A deficiency in folic acid can lead to megaloblastic anemia and neural tube defects in newborns if a woman is deficient during pregnancy. Good dietary sources include leafy green vegetables, beans, oranges, and fortified grains.
Folic acid (B9)
Folic acid is a water-soluble B vitamin that acts as a coenzyme in single-carbon transfers in amino acid and nucleotide metabolism. It is required for DNA synthesis and cell division. A deficiency can lead to megaloblastic anemia due to impaired DNA synthesis. Rich dietary sources include green leafy vegetables. Folic acid supplementation is important during pregnancy to prevent neural tube defects in newborns.
NIACIN (B3)
Niacin, or vitamin B3, is an essential vitamin that acts as a coenzyme in many metabolic reactions related to energy production. It is synthesized from the amino acid tryptophan. Niacin deficiency causes the disease pellagra, with symptoms of dermatitis, diarrhea, and dementia. Treatment of pellagra involves niacin supplementation. Therapeutically, niacin is used to treat hypercholesterolemia and hypertriglyceridemia by lowering LDL and VLDL cholesterol levels and raising HDL levels.
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Nicotinic Acid (Plant form)
CHEMISTRY of Vitamin B3
Sources of Vitamin B3
RECOMMENDED DAILY ALLOWANCE (RDA) of Vitamin B3
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VITAMIN B1 THIAMINE MUHAMMAD MUSTANSAR
Thiamine, also known as vitamin B1, is an essential nutrient that plays a key role in carbohydrate metabolism. It consists of a pyrimidine ring connected to a thiazole ring. Thiamine acts as a cofactor for several enzymes involved in the breakdown of carbohydrates and the citric acid cycle. Deficiency of thiamine can cause diseases like beriberi, which presents as either "wet" beriberi with edema or "dry" beriberi with neurological symptoms. Treatment involves high doses of thiamine supplementation.
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Thiamine pyrophosphate (TPP) is an important coenzyme that maintains normal heart and energy metabolism functions. TPP works as a coenzyme in several enzymatic reactions including pyruvate decarboxylase, transketolase, pyruvate dehydrogenase, and alpha ketoglutarate dehydrogenase. As a cofactor for pyruvate decarboxylase, TPP facilitates the decarboxylation of pyruvate to acetaldehyde. For transketolase, TPP transfers a two-carbon unit from xylulose 5-phosphate to ribose 5-phosphate, yielding sedoheptulose 7-phosphate and glyceraldehyde 3-phosphate. The mechanisms of these reactions
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VITAMIN B2-RIBOFLAVIN.pptx
Riboflavin, also known as vitamin B2, is a vitamin found in food and sold as a dietary supplement.[3] It is essential to the formation of two major coenzymes, flavin mononucleotide and flavin adenine dinucleotide. These coenzymes are involved in energy metabolism, cellular respiration, and antibody production, as well as normal growth and development. The coenzymes are also required for the metabolism of niacin, vitamin B6, and folate. Riboflavin is prescribed to treat corneal thinning, and taken orally, may reduce the incidence of migraine headaches in adults.
Riboflavin deficiency is rare and is usually accompanied by deficiencies of other vitamins and nutrients. It may be prevented or treated by oral supplements or by injections. As a water-soluble vitamin, any riboflavin consumed in excess of nutritional requirements is not stored; it is either not absorbed or is absorbed and quickly excreted in urine, causing the urine to have a bright yellow tint. Natural sources of riboflavin include meat, fish and fowl, eggs, dairy products, green vegetables, mushrooms, and almonds. Some countries require its addition to grains.
Riboflavin was discovered in 1920, isolated in 1933, and first synthesized in 1935. In its purified, solid form, it is a water-soluble yellow-orange crystalline powder. In addition to its function as a vitamin, it is used as a food coloring agent. Biosynthesis takes place in bacteria, fungi and plants, but not animals. Industrial synthesis of riboflavin was initially achieved using a chemical process, but current commercial manufacturing relies on fermentation methods using strains of fungi and genetically modified bacteria.
vitaminstypesandfunctions-171022080107 (1).pptx
Vitamins are organic compounds that are required in small amounts for various biological functions. They are classified as either fat-soluble (A, D, E, K) or water-soluble (B complex, C). Fat-soluble vitamins are absorbed with fats and stored in the liver, while water-soluble vitamins dissolve in water, are not stored, and excess is excreted in urine. Deficiencies of vitamins can cause diseases like scurvy, beriberi, and pellagra due to their roles as coenzymes in metabolic processes.
Riboflavin b2
Riboflavin B2
active coenzyme - FMN,FAD
Function - Oxidation reduction reaction, Antioxidant
Deficiency- Glossitis, stomatitis, Cheilosis, Seborrhoeic dermatitis, corneal vascularisation etc
Vitamins
Vitamins are organic compounds that are essential in small amounts for various biological functions. They are classified as either fat-soluble (A, D, E, K) or water-soluble (B complex, C). Vitamins act as coenzymes and are involved in growth, metabolism, and disease prevention. Deficiencies can cause conditions like scurvy, beriberi, and pellagra. The document discusses the chemistry, absorption, functions, sources, and deficiencies of various vitamins.
Vitamins, types, and functions
This document summarizes key information about vitamins. It defines vitamins and explains that most are not synthesized in the body and must come from diet. Vitamins are divided into two groups: fat-soluble vitamins A, D, E, and K which are stored in the liver, and water-soluble B vitamins and vitamin C which are not stored. The document then provides details on individual B vitamins, including their functions, sources, and deficiency symptoms.
Vitamin by tkvs
This document discusses vitamin B1 (thiamine). It defines vitamins and provides information on the chemistry, dietary sources, deficiency symptoms, and physiological significance of vitamin B1. Key points include: vitamin B1 enables the body to use carbohydrates as energy and plays a role in nerve, muscle, and heart function; common dietary sources include cereals, pulses, nuts, and pork; deficiency can cause beri-beri and symptoms like weakness; and the active form, thiamine pyrophosphate, is important for glucose metabolism and energy releasing reactions.
Vitamins & Coenzymes
1. Vitamins are organic molecules that serve as cofactors for enzyme reactions and must be obtained through diet as they cannot be synthesized by the body.
2. Vitamins are classified as either water-soluble or fat-soluble, with water-soluble vitamins including all B vitamins and vitamin C, and fat-soluble vitamins being vitamins A, D, E, and K.
3. Each vitamin has a specific biochemical function, such as vitamin C serving as an antioxidant and cofactor for collagen synthesis, vitamin B12 acting as a cofactor for fatty acid and amino acid metabolism, and vitamin K being required for blood clotting through gamma-carboxylation of glutamate residues.
VITAMINS introduction water soluble and fat soluble vitamins.pptx
The document discusses vitamins, including their classification, functions, sources, and deficiencies. It covers both water-soluble vitamins like vitamin C and B vitamins, as well as fat-soluble vitamins A, D, E, and K. Key points include:
- Vitamins are organic compounds required in small amounts that must be obtained from diet. They are classified as either water-soluble or fat-soluble.
- Water-soluble vitamins include vitamin C and B vitamins. Deficiencies can cause conditions like scurvy and beriberi. Fat-soluble vitamins are absorbed with fats and stored in the liver.
- All vitamins function as coenzymes and play important
Vitaminquick Reviews | Vitamin B12 and Folic Acid Deficiency and Homocysteinimia
Vitaminquick Reviews | Vitamin B12 and Folic Acid Deficiency and HomocysteinimiaVitaminquick Reviews
Vitamin B12 and Folic Acid Deficiency and Homocysteinimia is main topic here by Vitaminquick Reviews for people to aware them.VITAMIN METABOLISM BIOCHEMISTRY PRESENTATION
This presentation is on metabolism. It is targeted for medical students for learning purposes
Riboflavin fermentation[1]
Riboflavin, also known as vitamin B2, is produced industrially through three main processes - chemical synthesis, biotransformation, and direct fermentation. Direct fermentation, which accounts for 30% of production, involves fungi and bacteria that synthesize riboflavin including Ashbya gossypii, Candida famata, and genetically engineered Bacillus subtilis. The industrial standard strain is A. gossypii, which is cultured for 7 days at 28°C to produce 10-15 g/L of riboflavin using glucose, corn steep liquor, and other nutrients as carbon and energy sources. After fermentation, riboflavin is released from the cells, purified
B and C.ppt
This document provides an overview of the B complex vitamins, focusing on Thiamine (B1). It discusses the chemistry, functions, deficiency symptoms, and recommended daily intake of Thiamine. Key points include: Thiamine acts as a coenzyme (Thiamine Pyrophosphate) and is important for energy metabolism. Deficiency can cause Beriberi, with symptoms of weakness, edema, and nerve damage. Good sources include whole grains, yeast, and the aleurone layer of cereals.
Metabolic functions of riboflavin
Riboflavin functions metabolically as an essential component of the coenzymes FMN and FAD, which act as intermediaries in electron transfers in biological oxidation-reduction reactions. As flavoproteins, they serve as switching sites between obligate two-electron donors and one-electron acceptors, and can transfer one or two electrons with a range of potentials. Riboflavin plays key roles in metabolism through these coenzymes, including carbohydrate, amino acid, lipid, and vitamin metabolism. It is also essential for protecting against oxidative stress and homocysteinemia, and plays roles in vascular disease, congenital defects in fat metabolism, mineral utilization, and other health effects.
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Riboflavin,flavoproteins and their clinical applications
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vitamin b2 (1).pptx it is about vitamin b2 which is riboflavin
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dtubbenhauer@gmail.com
Corrected slides: dtubbenhauer.com/talks.html
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Equivariant neural networks and representation theory
Vitamin b2
- 3. Riboflavin (Vitamin B2) • Riboflavin which has also known as Vitamin B2, Vitamin G and “ the yellow enzyme” was recognized as a vitamin in 1917. • As early as 1897, a London chemist had observed in milk whey a water-soluble pigment with peculiar yellow-green fluorescence. • It was given the chemical group name flavin from the Latin word for Yellow. • Later because the vitamin was found also to contain a sugar named ribose, the name riboflavin was adopted.
- 5. Riboflavin (Vitamin B2) - Chemistry • Riboflavin through its coenzymes takes part in a variety of cellular oxidation-reduction reactions. • Riboflavin contains 6,7-dimethyl isoalloxazine ( a hetrocyclic 3 ring structure) attached to D-ribitol by a nitrogen atom.
- 7. Riboflavin (Vitamin B2) - Chemistry
- 9. Riboflavin (Vitamin B2) - Chemistry • Coenzymes of Riboflavin • Flavin mononucleotide (FMN) and Flavin Adenine dinucleotide (FAD) are the two coenzyme forms of riboflavin. The ribitol (5 carbon) is linked to a phosphate in FMN. FAD is formed from FMN by the transfer of an AMP moiety from ATP.
- 12. Riboflavin (Vitamin B2) - Biochemical functions I. The flavin coenzymes (mostly FAD and to a lesser extent FMN) participate in many redox reactions responsible for energy production. • The functional unit of both the coenzymes is isoalloxazine ring which serves as an acceptor of two hydrogen atoms (with electrons). • FMN or FAD undergo identical reversible reactions accepting two hydrogen atoms forming FMNH2 or FADH2.
- 13. Riboflavin (Vitamin B2) – Biochemical Functions II. Enzymes that use flavin coenzymes (FMN or FAD) are called flavoproteins. • Many flavoproteins contain metal atoms (iron, molybdenum etc.) which are known as metalloflavoproteins. • The coenzymes, FAD and FMN are associated with several enzymes involved in carbohydrate, lipid, protein, and purine metabolisms, besides the electron transport chain.
- 16. Riboflavin (Vitamin B2) - Recommended dietary allowance (RDA) • The daily requirement of riboflavin for an adult is 1.2-1.7mg. • Higher intakes (by 0.2-0.5 mg/day) are advised for pregnant and lactating women.
- 18. Riboflavin (Vitamin B2) – Dietary Sources • Milk and milk products, meat, eggs, liver, kidney, are rich sources. • Cereals, fruits, Vegetables and fish are moderate sources.
- 20. Riboflavin (Vitamin B2) - Deficiency Symptoms • Riboflavin deficiency symptoms include: • Cheilosis (fissure at the corner of the mouth), • Glossitis (tongue smooth and purplish) and • Dermatitis. • Assay of the enzyme Glutathione Reductase in erythrocytes will be useful in assessing the riboflavin deficiency.