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First double bond site distributions in 16 vegetable and six animal reserve fats
Author(s) -
Kartha A. R. S.,
Selvaraj Y.
Publication year - 1970
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/bf02639003
Subject(s) - double bond , permanganate , dibasic acid , extraction (chemistry) , chemistry , chromatography , organic chemistry
The dibasic acids corresponding to the first double bond site in 16 vegetable and 6 animal fats were obtained by standardized procedures, fractionated by liquid‐liquid countercurrent extraction and individual fractions analyzed. Results show that the site of the first double bond is not restricted exclusively or even predominantly to any single position but is spread over three or more positions in major proportions. First double bond site distributions show large differences in different biological species, different varieties from the same species and also different specimens from the same variety. Possible migration of double bonds in permanganate oxidation at alkaline pH is discussed.