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A linoleate is a salt or ester of this acid. [5] Linoleic acid is a polyunsaturated, omega−6 fatty acid. It is a colorless liquid that is virtually insoluble in water but soluble in many organic solvents. [2] It typically occurs in nature as a triglyceride (ester of glycerin) rather than as a free fatty acid. [6]
Cervonic acid (or docosahexaenoic acid) has 22 carbons, is found in fish oil, is a 4,7,10,13,16,19-hexa unsaturated fatty acid. In the human body its generation depends on consumption of omega 3 essential fatty acids (e.g., ALA or EPA), but the conversion process is inefficient. [ 22 ]
The most commonly used alcohol is methanol, producing fatty acid methyl esters (FAME). When ethanol is used fatty acid ethyl esters (FAEE) are created. Other alcohols used for the production of biodiesel include butanol and isopropanol. Fatty acid ethyl esters are biomarkers for the consumption of ethanol (alcoholic beverages). [1] [2] [3]
Fatty acid methyl esters (FAME) are a type of fatty acid ester that are derived by transesterification of fats with methanol. The molecules in biodiesel are primarily FAME, usually obtained from vegetable oils by transesterification. They are used to produce detergents and biodiesel. [1]
Most typically, the reaction entails the use of methanol (MeOH) to give fatty acid methyl esters: RCO 2 CH 2 –CHO 2 CR–CH 2 O 2 CR + 3 MeOH → 3 RCO 2 Me + HOCH 2 –CHOH–CH 2 OH. FAMEs are less viscous than the precursor fats and can be purified to give the individual fatty acid esters, e.g. methyl oleate vs methyl palmitate.
The polyunsaturated fatty acid, 18:2 ω6c (linoleic acid), is found in soil fungi, whereas the monounsaturated fatty acid, 16:1 ω5c, is predominant in Arbuscular mycorrhizal fungi (AMF). The basic premise is that as individual organisms (especially bacteria and fungi) die, phospholipids are rapidly degraded and the remaining phospholipid ...