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Isolation and characterization of branched chain fatty acids (other than those derived from phytol) in cod liver oil
Author(s) -
DUR L. A. D.
Publication year - 1983
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/j.1365-2621.1983.tb00261.x
Subject(s) - phytol , chemistry , carbon number , carbon chain , long chain , fatty acid , amino acid , organic chemistry , gas chromatography–mass spectrometry , stereochemistry , biochemistry , chromatography , mass spectrometry , alkyl , polymer science
Summary A group of mono‐ and di‐unsaturated branched chain fatty acids were isolated and characterized by GC‐MS. A GC‐MS analysis of the perhydroderivatives of these acids revealed the presence of the following acids: 5 ‐ methyltetradecanoic, 5,7‐dimethyltridecanoic, 7‐methylhexadecanoic, 5,7‐ dime t h y 1 te tradecanoic, 7,9‐dime t hyl hexadecanoic, 9‐met h yloctadecanoic, 7,9‐ and 9,11‐dimethyloctadecanoic acids. Of these, only the 7,9‐ dimethylhexadecanoic acid was fully characterized in its unhydrogenated form as 7,9‐dimethyihexadecadienoate (Δ 63). The presence of the branched methyl groups on alternate odd carbon atoms is uncommon.