A new delta 7-polyunsaturated fatty acid in Taxus spp. Seed lipids, dihomotaxoleic (7,11-20:2) acid.
A previously undescribed fatty acid, all-cis 7,11-20:2 (dihomotaxoleic acid, DHT), has been characterized by gas chromatography-mass spectrometry as being present (approximately 0.1%) in seed oils of two Taxaceae containing high levels (11-16%) of taxoleic acid (all-cis 5,9-18:2). This compound was absent from oils of 10 other conifer genera, as well as from one member of Taxaceae containing very low amounts of taxoleic acid, suggesting that DHT is a taxoleic acid elongation product.
Destaillats
F
F
Department of Food Science and Nutrition, Dairy Research Center (STELA), Université Laval, Sainte Foy, Québec, Canada G1K 7P4.
Wolff
R L
RL
Angers
P
P
D005231:Fatty Acids, Unsaturated / Q000032:analysis* / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D010938:Plant Oils / Q000032:analysis; D010946:Plants, Medicinal; D012639:Seeds / Q000737:chemistry*; D013045:Species Specificity; D020946:Taxus / Q000737:chemistry*
D005231:Fatty Acids, Unsaturated; D010938:Plant Oils; C434188:dihomotaxoleic acid