Question

can someone please give me name, structure and percebtage of FAME that are likely produces from the vegetable oil? i need 3! and it has to be similar to the fatty acid structure of vegetable oil!

Answer 1

Solution: Fatty Acid Methyl Esters (FAME) are esters of fatty acids. FAME is produced from vegetable oils, animal fats or waste cooking oils by transesterification. The transesterification yields two products, Fatty acid Methyl Ester (FAME) as a biodiesel and glycerin. The vegetable oils from Cocos nucifera, Brassica juncea, Helianthus annus Linn, Madhuca longifolia and Pongamia pinnata can produce more than 84% of FAME by Transesterification. The physical characteristics of fatty acid esters are closer to those of fossil fuels than pure vegetable oils, but properties depend on the type of vegetable oil. A mixture of different fatty acid methyl esters is commonly referred to as biodiesel, which is a renewable alternative fuel. FAME has physical properties similar to those of conventional diesel. It is also non-toxic and biodegradable.

The general structure of the FAME is CH₃(CH₂)_nCOOCH₃, where n is the number of carbon atoms present in the fatty acids which depends on the source of vegetable oil. Vegetable oils have a wide variety of fatty acid composition, depending on their source. Among the fatty acids, oleic acid is particularly stable to thermal oxidation, sunflower oils have about 20% of oleic acid, high breed varieties may reach 80% content, so this oil has been a special interest in the synthesis of FAME to be used as bio-fuels.