This document discusses lipids and proteins, including their structure and classification. It covers different types of lipids like simple lipids, compound lipids, and derived lipids. Simple lipids include neutral fats and waxes. Compound lipids contain additional groups like phosphoric acid, in addition to glycerol and fatty acids. Derived lipids are compounds derived from lipids after hydrolysis. The document also discusses saturated and unsaturated fatty acids, positional and geometrical isomerism in unsaturated fatty acids, and essential fatty acids that must be obtained through diet.
Properties of fats and oils/Organic chemistry 2/Neet preparation/ Reactions of fats and oil/Qualitative analysis of fats and oils
Also see videos:
Properties of fats and oils
https://youtu.be/ux09yaPPPHw
Qualitative analysis of fats and oils
https://youtu.be/WXO6Ggdjwvo
Hi dear students, in this presentation I had explained the introduction, sources, functions and chemistry of fats and oils. I had covered the chemical reactions of fats and oils too, which includes hydrolysis, hydrogenation, Rancidity and drying of oils.
I had covered acid value, saponification value, iodine value, ester value, acetyl value, Reichert meissl value and polenske value of fats and oils. After watching this presentation it will be be able to answer the following questions,
What are fats and oils?
What are fats and oils?
What are the qualitative analysis tests for fats and oils?
What is fatty acid?
What are saturated and unsaturated fatty acids?
What is the difference between fats and oils?
What is fatty acid?
What is triglyceride?
What are saturated and unsaturated fatty acids?
What are essential fatty acids?
What is omega 3 and omega 6 fatty acids?
How vanaspati ghee is made?
What is acid value?
What is acid number?
What is saponification value?
What is iodine value?
What is ester value?
What is acetyl value?
What is reichert meissl value?
A lecture I almost had to give as a 'stand-in' for one of my colleagues. Probably the fastest I've ever prepared a lecture and the first time I have taken someone else's notes and effectively given them a 'presentation make-over. Never did give it but it seems pointless having it sitting around on my hard drive.
Fatty acids are obtained from the hydrolysis of fats.
Fatty acids that occur in natural fats usually contain an even number of carbon atoms (due to synthesis from 2-carbon units) and are straight chain derivatives.
The chain may be saturated (containing no double bonds) or unsaturated (containing one or more double bonds).
Properties of fats and oils/Organic chemistry 2/Neet preparation/ Reactions of fats and oil/Qualitative analysis of fats and oils
Also see videos:
Properties of fats and oils
https://youtu.be/ux09yaPPPHw
Qualitative analysis of fats and oils
https://youtu.be/WXO6Ggdjwvo
Hi dear students, in this presentation I had explained the introduction, sources, functions and chemistry of fats and oils. I had covered the chemical reactions of fats and oils too, which includes hydrolysis, hydrogenation, Rancidity and drying of oils.
I had covered acid value, saponification value, iodine value, ester value, acetyl value, Reichert meissl value and polenske value of fats and oils. After watching this presentation it will be be able to answer the following questions,
What are fats and oils?
What are fats and oils?
What are the qualitative analysis tests for fats and oils?
What is fatty acid?
What are saturated and unsaturated fatty acids?
What is the difference between fats and oils?
What is fatty acid?
What is triglyceride?
What are saturated and unsaturated fatty acids?
What are essential fatty acids?
What is omega 3 and omega 6 fatty acids?
How vanaspati ghee is made?
What is acid value?
What is acid number?
What is saponification value?
What is iodine value?
What is ester value?
What is acetyl value?
What is reichert meissl value?
A lecture I almost had to give as a 'stand-in' for one of my colleagues. Probably the fastest I've ever prepared a lecture and the first time I have taken someone else's notes and effectively given them a 'presentation make-over. Never did give it but it seems pointless having it sitting around on my hard drive.
Fatty acids are obtained from the hydrolysis of fats.
Fatty acids that occur in natural fats usually contain an even number of carbon atoms (due to synthesis from 2-carbon units) and are straight chain derivatives.
The chain may be saturated (containing no double bonds) or unsaturated (containing one or more double bonds).
1. LIPIDS.
2. PROPERTIES OF LIPIDS.
3. FATTY ACIDS.
4. USES AND CLASSIFICATION OF FATTY ACIDS.
5. STRUCTURE AND CLASSIFICATION OF LIPIDS.
PHOSPHOLIPIDS: A class of lipid that is a key component of all cell membranes, as they can form lipid biomarkers. Composition: It is composed of phospholipids. i. Glycerol: one molecule ii. Fatty acids: Two molecules. iii. Phosphoric acid: one molecule. When a nitrogen-containing phospholipid group is attached to the end of the phospholipid, it is called phosphatidylcholine. Phospholipids consist of two parts i) Chapter: The head is polar in nature, soluble in water (hydrophilic). n) Tails: Nature has a non-polar tail, insoluble in water (hydrophobic).
Washes: Wax lipids are derived. Wax is a fatty acid ester and chronic alcohol: The wax is composed of i) a long-chain fatty acid ... one molecules ii) long-chain alcohol with one hydroxyl group (-OH), i.e. Cylinder wax is hydrophobic in nature. They have a high melting point, solid at room temperature. it gives stability and declines. On the surfaces of parts of plants, e.g. The leaves and fruits produce a waterproof layer, reducing the rate of perspiration. Wax is also a layer of wax that covers the bodies of animals, e.g., slime, insects, etc.
STEROIDS: Steroids fall under the lipid categories: Steroids are derived from lipid composition: proper arrangement of 3 cyclohexyl rings and 1 cyclopentane ring, a total of 17 carbon atoms in four carbon rings. Steroids do not contain alcohol and fatty acids.
Steroids Examples of steroids: i) Cholesterol: an important factor in animal cells. The precursor of all hormonal molecules such as aldosterone, sex hormone, and vitamin D ii) Aldosterone helps regulate Na+ions in the blood iii) Sex hormones e.g. testosterone, progesterone, and estrogens help to preserve the characteristics of males and females.
TERPENOIDES: It contains a very different class of organic compounds. Terpenoids are lipid derivatives, soluble in fat and soluble in water. Don't use molecule acids like fats. Composite units which they call isoprenoid or isoprenes. Isoprene unit: Hydrocarbon containing five carbon atoms with a branched-chain structure. Isoprene units bind to each other through the condensation process resulting in different types of compounds, e.g. Carotenoids, terpenes, and rubbers, etc.
CAROTENOIDS: Carotenoids are yellow, orange, red, or brown in plants. There are two kinds: i) Carotene: ii) Xanthophylla, i) Carotene: Orange is the genus of carotene, with red color, beta carotene. carrot & rice. Breakdown of beta-carotene leaves two molecules of vitamin A in the human body. n) Xanthophyllus: the auxiliary yellow color found in plants.
6 STORAGE LIPIDS.
7. USES OF LIPIDS.
# ALL ABOUT LIPIDS BY AUTHENTIC BOOKS.
“These are the naturally Organic compounds, insoluble in water, soluble in organic solvents (alcohol, ether, etc.), which are potentially related to fatty acids & utilized by living cells."
Lipids are a heterogeneous group of compounds.
They are esters of fatty acids. Lipids occur widely in plants and animals. Lipids include fats, oils, waxes, and related compounds.
Lipids are a family of organic compounds, composed of fats and oils. These molecules yield high energy and are responsible for different functions within the human body.
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS#NUTRITIONIST #INTERNATIONAL DIETICIANS This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
#medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
#medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
#medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONAL DIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
#medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONALDIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
#medical #students #doctors #foodandnutrition #nurses #NEET #PCM #doctors #nutritioneducation #mscdfsm #dietician #nationaldieticians #RD #REGISTERED #DIETICIANS
#NUTRITIONIST #INTERNATIONALDIETICIANS
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestion.
This content is made for all student of medical ,nutrition ,doctors ,zoology ,chemistry ,medical who are still preparing for examination .feel free to give suggestions
This is for mscdfsm ,#medical #nursing #biology #neet #foodandnutrition #biochemistry and #related subjects .also it will help #dieticians to upgrade their skills
This is for mscdfsm ,#medical #nursing #biology #neet #foodandnutrition #biochemistry and #related subjects .also it will help #dieticians to upgrade their skills
Multi-source connectivity as the driver of solar wind variability in the heli...Sérgio Sacani
The ambient solar wind that flls the heliosphere originates from multiple
sources in the solar corona and is highly structured. It is often described
as high-speed, relatively homogeneous, plasma streams from coronal
holes and slow-speed, highly variable, streams whose source regions are
under debate. A key goal of ESA/NASA’s Solar Orbiter mission is to identify
solar wind sources and understand what drives the complexity seen in the
heliosphere. By combining magnetic feld modelling and spectroscopic
techniques with high-resolution observations and measurements, we show
that the solar wind variability detected in situ by Solar Orbiter in March
2022 is driven by spatio-temporal changes in the magnetic connectivity to
multiple sources in the solar atmosphere. The magnetic feld footpoints
connected to the spacecraft moved from the boundaries of a coronal hole
to one active region (12961) and then across to another region (12957). This
is refected in the in situ measurements, which show the transition from fast
to highly Alfvénic then to slow solar wind that is disrupted by the arrival of
a coronal mass ejection. Our results describe solar wind variability at 0.5 au
but are applicable to near-Earth observatories.
Observation of Io’s Resurfacing via Plume Deposition Using Ground-based Adapt...Sérgio Sacani
Since volcanic activity was first discovered on Io from Voyager images in 1979, changes
on Io’s surface have been monitored from both spacecraft and ground-based telescopes.
Here, we present the highest spatial resolution images of Io ever obtained from a groundbased telescope. These images, acquired by the SHARK-VIS instrument on the Large
Binocular Telescope, show evidence of a major resurfacing event on Io’s trailing hemisphere. When compared to the most recent spacecraft images, the SHARK-VIS images
show that a plume deposit from a powerful eruption at Pillan Patera has covered part
of the long-lived Pele plume deposit. Although this type of resurfacing event may be common on Io, few have been detected due to the rarity of spacecraft visits and the previously low spatial resolution available from Earth-based telescopes. The SHARK-VIS instrument ushers in a new era of high resolution imaging of Io’s surface using adaptive
optics at visible wavelengths.
Richard's entangled aventures in wonderlandRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
Introduction:
RNA interference (RNAi) or Post-Transcriptional Gene Silencing (PTGS) is an important biological process for modulating eukaryotic gene expression.
It is highly conserved process of posttranscriptional gene silencing by which double stranded RNA (dsRNA) causes sequence-specific degradation of mRNA sequences.
dsRNA-induced gene silencing (RNAi) is reported in a wide range of eukaryotes ranging from worms, insects, mammals and plants.
This process mediates resistance to both endogenous parasitic and exogenous pathogenic nucleic acids, and regulates the expression of protein-coding genes.
What are small ncRNAs?
micro RNA (miRNA)
short interfering RNA (siRNA)
Properties of small non-coding RNA:
Involved in silencing mRNA transcripts.
Called “small” because they are usually only about 21-24 nucleotides long.
Synthesized by first cutting up longer precursor sequences (like the 61nt one that Lee discovered).
Silence an mRNA by base pairing with some sequence on the mRNA.
Discovery of siRNA?
The first small RNA:
In 1993 Rosalind Lee (Victor Ambros lab) was studying a non- coding gene in C. elegans, lin-4, that was involved in silencing of another gene, lin-14, at the appropriate time in the
development of the worm C. elegans.
Two small transcripts of lin-4 (22nt and 61nt) were found to be complementary to a sequence in the 3' UTR of lin-14.
Because lin-4 encoded no protein, she deduced that it must be these transcripts that are causing the silencing by RNA-RNA interactions.
Types of RNAi ( non coding RNA)
MiRNA
Length (23-25 nt)
Trans acting
Binds with target MRNA in mismatch
Translation inhibition
Si RNA
Length 21 nt.
Cis acting
Bind with target Mrna in perfect complementary sequence
Piwi-RNA
Length ; 25 to 36 nt.
Expressed in Germ Cells
Regulates trnasposomes activity
MECHANISM OF RNAI:
First the double-stranded RNA teams up with a protein complex named Dicer, which cuts the long RNA into short pieces.
Then another protein complex called RISC (RNA-induced silencing complex) discards one of the two RNA strands.
The RISC-docked, single-stranded RNA then pairs with the homologous mRNA and destroys it.
THE RISC COMPLEX:
RISC is large(>500kD) RNA multi- protein Binding complex which triggers MRNA degradation in response to MRNA
Unwinding of double stranded Si RNA by ATP independent Helicase
Active component of RISC is Ago proteins( ENDONUCLEASE) which cleave target MRNA.
DICER: endonuclease (RNase Family III)
Argonaute: Central Component of the RNA-Induced Silencing Complex (RISC)
One strand of the dsRNA produced by Dicer is retained in the RISC complex in association with Argonaute
ARGONAUTE PROTEIN :
1.PAZ(PIWI/Argonaute/ Zwille)- Recognition of target MRNA
2.PIWI (p-element induced wimpy Testis)- breaks Phosphodiester bond of mRNA.)RNAse H activity.
MiRNA:
The Double-stranded RNAs are naturally produced in eukaryotic cells during development, and they have a key role in regulating gene expression .
Slide 1: Title Slide
Extrachromosomal Inheritance
Slide 2: Introduction to Extrachromosomal Inheritance
Definition: Extrachromosomal inheritance refers to the transmission of genetic material that is not found within the nucleus.
Key Components: Involves genes located in mitochondria, chloroplasts, and plasmids.
Slide 3: Mitochondrial Inheritance
Mitochondria: Organelles responsible for energy production.
Mitochondrial DNA (mtDNA): Circular DNA molecule found in mitochondria.
Inheritance Pattern: Maternally inherited, meaning it is passed from mothers to all their offspring.
Diseases: Examples include Leber’s hereditary optic neuropathy (LHON) and mitochondrial myopathy.
Slide 4: Chloroplast Inheritance
Chloroplasts: Organelles responsible for photosynthesis in plants.
Chloroplast DNA (cpDNA): Circular DNA molecule found in chloroplasts.
Inheritance Pattern: Often maternally inherited in most plants, but can vary in some species.
Examples: Variegation in plants, where leaf color patterns are determined by chloroplast DNA.
Slide 5: Plasmid Inheritance
Plasmids: Small, circular DNA molecules found in bacteria and some eukaryotes.
Features: Can carry antibiotic resistance genes and can be transferred between cells through processes like conjugation.
Significance: Important in biotechnology for gene cloning and genetic engineering.
Slide 6: Mechanisms of Extrachromosomal Inheritance
Non-Mendelian Patterns: Do not follow Mendel’s laws of inheritance.
Cytoplasmic Segregation: During cell division, organelles like mitochondria and chloroplasts are randomly distributed to daughter cells.
Heteroplasmy: Presence of more than one type of organellar genome within a cell, leading to variation in expression.
Slide 7: Examples of Extrachromosomal Inheritance
Four O’clock Plant (Mirabilis jalapa): Shows variegated leaves due to different cpDNA in leaf cells.
Petite Mutants in Yeast: Result from mutations in mitochondrial DNA affecting respiration.
Slide 8: Importance of Extrachromosomal Inheritance
Evolution: Provides insight into the evolution of eukaryotic cells.
Medicine: Understanding mitochondrial inheritance helps in diagnosing and treating mitochondrial diseases.
Agriculture: Chloroplast inheritance can be used in plant breeding and genetic modification.
Slide 9: Recent Research and Advances
Gene Editing: Techniques like CRISPR-Cas9 are being used to edit mitochondrial and chloroplast DNA.
Therapies: Development of mitochondrial replacement therapy (MRT) for preventing mitochondrial diseases.
Slide 10: Conclusion
Summary: Extrachromosomal inheritance involves the transmission of genetic material outside the nucleus and plays a crucial role in genetics, medicine, and biotechnology.
Future Directions: Continued research and technological advancements hold promise for new treatments and applications.
Slide 11: Questions and Discussion
Invite Audience: Open the floor for any questions or further discussion on the topic.
Richard's aventures in two entangled wonderlandsRichard Gill
Since the loophole-free Bell experiments of 2020 and the Nobel prizes in physics of 2022, critics of Bell's work have retreated to the fortress of super-determinism. Now, super-determinism is a derogatory word - it just means "determinism". Palmer, Hance and Hossenfelder argue that quantum mechanics and determinism are not incompatible, using a sophisticated mathematical construction based on a subtle thinning of allowed states and measurements in quantum mechanics, such that what is left appears to make Bell's argument fail, without altering the empirical predictions of quantum mechanics. I think however that it is a smoke screen, and the slogan "lost in math" comes to my mind. I will discuss some other recent disproofs of Bell's theorem using the language of causality based on causal graphs. Causal thinking is also central to law and justice. I will mention surprising connections to my work on serial killer nurse cases, in particular the Dutch case of Lucia de Berk and the current UK case of Lucy Letby.
2. LIPIDS :
1. These are the heterogenous group of compounds occurring in both plants and animals.
2. Lipids are insoluble in water but soluble in ether ,chloroform and benzene
3. Neutral fats and oils derived from animal and plant sources are called neutral lipids on
hydrolysis they break down into glycerol and fatty acids .
STRUCTURE AND CLASSIFICATION
lipids
Neutral fat wax
phospholipids sulpholipids aminolipids
lipoproteins
glycolipids
Compound
lipids
Simple lipids Derived lipids
3. SIMPLE LIPIDS
1. These are esters of fatty acids with various alcohol.
2. This include neutal fat and wax
3. Neutral fat are the ester of fatty acids and glycerol
4. Waxes are the fatty acids with alcohol other than glycerol
COMPOUND LIPIDS
1. These are the esters of fatty acids containing group in addition to alcoholand fatty acids.
2. Eg phospholipids and glycolipid etc
3. Phospholipids are lipids that contain phosphoric acids in adition to glycerol and fatty acid
DERIVED LIPIDS
1. These are the compounds derived from other groups on hydrolysis.
2. The groups are fatty acids, glycerol,steroids,alcohols fatty aldehyde ,ketones etc
FATTY ACIDS
When neutral fat hydrolyse ,it gives fatty acids fatty acids occur naturally in food .
it is represented by
0
R C OH
R- hydrocarbon chain (CH3-CH2-CH2…….)
4. SATURATED AND UNSATURATED FATTY ACIDS
SATURATED FATTY ACID
• When fatty acid have all single
bonds
• These are solid at room temp
• General Formula
CH3(CH2)Ncooh
• It has polar end with –COOH
group and non –polar end with
hydrocarbon chain.
UNSATURATED FATTY ACIDS
• When fatty acids have one or
more double bonds .
• These are liqid at room temp
• General formula
H H
C C
5. SATURATED FATTY ACIDS
Fatty acids with less carbon atoms are readily soluble in water .and solubility decrease with
increase in carbon atom .saturated fatty acids with less than 10 carbon atoms areliquid at
room temp and more than 10 are solid at room temp.
Melting point of fatty acids increase with increase carbon atom .
Eg. Butyric acid in butter ,lauric acid in coconut oil
UNSATURATED FATTY ACIDS
These are of two types .PoLyunsaturated fatty acids (PUFA) & Monounsaturated fatty acids
(MUFA)
MUFA has single double bond and PUFA has two or more double bond
POSITIONAL ISOMERISM
Unsaturated fatty acid exhibit positional isomerism .fatty acid with same molecular formula
and same number of double bonds ,may differ in ocation of double bonds this resut in
positional isomerism .eg.oleic acid
GEOMATRICAL ISOMERISM
Two hydrogen attached to two carbon atom joined by double bonds exibit geometrical
isomerism .if both hydrogen atom are placed on same side of double bond ,its called cis
isomer .
And if hydrogen is placed on either side of double bond its called trans isomers
Eg .oleic acid , elaidic acid.naturally occurring unsaturated fats are of cis confugration
6. location of double bond can be easily identified by α,β,ω etc .α carbon is carbon next to
carboxylic group .and ω is the last carbon of the chain .LINOLENIC acid is an omega 6 fatty
acid because double bond is six carbon away from omega carbon .ALPHA LINOLENIC acid is
omega 3 fatty acid because it has double bondthree carbon away from omega carbon. To be
more clear , n3 or ω3 fatty acid have dobe bond between carbon atom 3 and 4 but no double
bond between 6 and 7 carbon atom .on the other hand , n6 or ω6 fatty acids have double bond
between 6 and 7 carbon atom .
Eg of unsaturated fatty acid are :oleic acid in olive oil,linoleic acid in veg oils ,linolenic acid in
linseed oil.
ESSENTIAL FATTY ACID
These are important or essential fatty acid that are not made by our body and thus it is
essential to survive.it has to be provided by external source like food or supplements .
Eg .Omega 6 essential fatty acid (linoleic acid ) in sunflower ,sufflower ,corn oils etc
omega 3 essential fatty acid (linolenic acid ) in flex seed and hemp seeds .