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The example of Polyunsaturated Fatty Acid is linoleic acid which find in vegetable oil. Almost, at the carbon joint has hydrogen absent and to be their partner in several position.
The Fatty acid in nature has an even number of carbon quantity
- Fatty acid which has 2-6 carbon atoms calls that “Short-Chain Fatty Acid (SCFAs)”.
- Fatty acid which has 8-12 carbon atoms calls that “Medium-Chain Fatty Acid (MCFAs)”.
- Fatty acid which has 14-24 carbon atoms calls that “Long-Chain Fatty Acid (LCFAs)”.
When the same length of three fatty acid to be link together with glyceride molecule. The outcome molecule was called as follows:
SHORT – CHAIN TRIGLYCERIDE (SCT)
MEDIUM – CHAIN TRIGLYCERIDE (MCT)
LONG – CHAIN TRIGLYCERIDE (LCT)
The Medium-Chain Triglyceride or MCT on food label especially infant food, bay food or supplementary food label.
The property of fatty acid that divide by molecule length, Short-Chain Fatty Acid (SCFAs) and Medium-Chain Fatty Acid (MCFAs) will brake digest and absorb easier than Long-Chain Fatty Acid (LCFAs). It does not depend on bile from pancreas to help for digest tend to fat was changed to energy completely. It has not occurred fat collectin in blood vessel or other part in your body. So, consumption of this oil does not cause of overweight and obesity.
When Long-Chain Fatty Acid (LCFAs) gets into the body, it will be roll for round shape call that chylomicron which circulate in blood vessel all the way may be harm by free radical to be swollen in blood vessel tend to solidify, clogged up, and transfer to liver again to be LDL which is dangerous cholesterol and can be cause of many diseases.
Burning of Long-Chain Fatty Acid (LCFAs) and
Medium-Chain Fatty Acid (MCFAs) in body
Fatty Acid Metabolism

Unsaturated oil especially for polyunsaturated oil although it has long chain structure, but according to be unsaturated structure give to high sensitivity on chemical reaction. After that, it occurs oxidize and free radical easier.
The table shows carbon and double bond in fatty acid
|
Fatty acid |
Number of carbons |
Number
of double
bonds |
Common source
|
Length of molecule |
|
Saturated Fatty Acids |
|
Acetic acid |
2 |
0 |
Vinegar |
|
|
Butyric acid |
4 |
0 |
Butterfat |
short |
|
Caproic acid |
6 |
0 |
Butterfat |
|
|
Caprylic acid |
8 |
0 |
Coconut oil |
|
|
Capric acid |
10 |
0 |
Palm oil |
medium |
|
Lauric acid |
12 |
0 |
Coconut oil |
|
|
Myristic acid |
14 |
0 |
Nutmeg oil |
|
|
Palmitic acid |
16 |
0 |
Animal and vegetable oil |
long |
|
Stearic acid |
18 |
0 |
Animal and vegetable oil |
|
|
Arachidic acid |
20 |
0 |
Peanut oil |
long |
|
Monosaturated Fatty Acids |
|
Palmitoleic acid |
16 |
1 |
Butterfat |
|
|
Oleic acid |
18 |
1 |
Olive oil |
long |
|
Erucic acid |
22 |
1 |
Rapseed oil (Canola) |
|
|
Polyunsaturated Fatty Acid |
|
Linoleic acid |
18 |
2 |
Vegetable oil |
|
|
Alpha-lineolenic |
18 |
3 |
Linseed oil |
|
|
Arachidonic acid |
20 |
4 |
Lecithin |
|
|
Eicosapentaenoic acid |
20 |
5 |
Fish oils |
long |
|
Docosahexaenoic acid |
22 |
6 |
Fish oils |
|
The Medium-Chain Fatty Acid (MCFAs) or MCT has 8-12 carbon atoms in saturated fat which is the most benefit on your health. |