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Keto fatty acids form Cuspidaria pterocarpa seed oil
Author(s) -
Smith C. R.
Publication year - 1966
Publication title -
lipids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.601
H-Index - 120
eISSN - 1558-9307
pISSN - 0024-4201
DOI - 10.1007/bf02531614
Subject(s) - countercurrent distribution , chemistry , clinical chemistry , lipidology , fatty acid , methyl oleate , organic chemistry , polyunsaturated fatty acid , chromatography , catalysis , biochemistry
The seed oil of Cuspidaria pterocarpa contains three keto fatty acids with unusually long carbon chains: 15‐oxo‐ cis ‐18‐tetracosenoic (5.4%), 17‐oxo‐ cis ‐20‐hexacosenoic (13.4%), and 19‐oxo‐ cis ‐22‐octacosenoic (3.3%) acids. These acids were isolated by countercurrent distribution of the corresponding methyl esters. Their structures were established by oxidative degradation, by reduction to known compounds, and by nuclear magnetic resonance and infrared spectra.