Fahrion considers that the tanning action is due solely to unsaturated fatty acids with more than one double linkage.
"Animal Proteins" by Hugh Garner Bennett
They are obtained through the conversion of unsaturated fatty acids (from natural oil and fat) by a combination of pressure, temperature and catalysis, followed by purification processes.
Our pipeline product DHA, a poly unsaturated fatty acid (PUFA), is produced through fermentation route by a fungus.
"Incorporation of n-3 long chain, highly unsaturated fatty acids into blood and muscle depends directly on dietary supply of specific fatty acids .".
A family of unsaturated fatty acids found naturally in fatty fish such as salmon, mackerel and sardines, and in some botanical sources such as flaxseed and kiwi fruit.
In general, the two fatty acids of natural phosphoglycerids are different, and one of them is quite often unsaturated.