Premium
Search for new seed oils. XV. Oils of boraginaceae
Author(s) -
Miller Roger Wayne,
Earle F. R.,
Wolff I. A.,
Barclay A. S.
Publication year - 1968
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/bf02530967
Subject(s) - boraginaceae , lipidology , clinical chemistry , chemistry , botany , biology , biochemistry
In a search for a preferred source of γ‐linolenic (all‐ cis ‐6,9,12‐octadecatrienoic) acid, seed oils of 33 species of Boraginaceae were examined. The desired triene was found primarily in the subfamily Boraginoideae in amounts ranging from 0.2 to 18%. Oils of this subfamily also contain 0.2 to 15% of the tetraene, all‐ cis ‐6,9,12,15‐octadecatetraenoic acid. Total unsaturation and the relative proportions of the common acids varied widely in oils of the family. Monoene predominated in the subfamily Cordioideae, diene in Heliotropioideae, and a diverse composition among the Boraginoideae; seven had iodine values of 200 or above. Cordia verbenacea seed oil was unique among those examined in having 43% of C 20 acids and 23% of components more volatile in gas chromatography than the usual triglycerides.