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In situ esterification of rice bran oil with methanol and ethanol
Author(s) -
Özgül Sevil,
Türkay Selma
Publication year - 1993
Publication title -
journal of the american oil chemists' society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.512
H-Index - 117
eISSN - 1558-9331
pISSN - 0003-021X
DOI - 10.1007/bf02542617
Subject(s) - methanol , chemistry , rice bran oil , bran , ethanol , interesterified fat , sulfuric acid , organic chemistry , catalysis , food science , raw material , lipase , enzyme
In situ esterifications of high‐acidity rice bran oil with methanol and ethanol and with sulfuric acid as catalyst were investigated. In the esterification with methanol, all free fatty acids (FFA) dissolved in methanol were interesterified within 15 min, and it was possible to obtain nearly pure methyl esters. The amount of methyl esters obtained from a given rice bran was dependent on the FFA content of the rice bran oil. In the esterification with ethanol, it was not possible to obtain pure esters as in methanol esterification, because the solubilities of oil components in ethanol were much higher than those in methanol.