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In‐situ alcoholysis of soybean oil
Author(s) -
Kildiran Gökhan,
Yücel Sevil Özgül,
Türkay Selma
Publication year - 1996
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/bf02523899
Subject(s) - soybean oil , methanol , chemistry , solvent , extraction (chemistry) , yield (engineering) , in situ , dissolution , organic chemistry , ethanol , butanol , materials science , food science , metallurgy
In‐situ alcoholysis of soybean oil with methanol, ethanol, n ‐propanol, and n ‐butanol was investigated, as well as the extraction of the oil with these solvents, to explain the progress of in‐situ alcoholysis and to determine the parameters that affect this reaction. Because methanol is a poor solvent for soybean oil, the amount of oil dissolved in methanol and converted to methyl esters was low after in‐situ alcoholysis. Ethyl, propyl, and butyl esters of soybean fatty acids could be obtained in high yields from in‐situ alcoholysis of soybean oil with these alcohols. In‐situ alcoholysis proceeded through dissolution and alcoholysis of triglycerides successively, and the overall reaction rate was determined by the extraction and alcoholysis rates. The parameters, affecting yield and purity of the product esters, were mainly those that favor extraction rate.