| 释义 |
linolenic acid Chem.|lɪnəˈlɛnɪk, -ˈliːnɪk|
[tr. G. linolensäure (K. Hazura 1887, in Sitzungsber. d. K. Akad. d. Wissensch. (Math.-Nat. Classe) XCV. ii. 1055), f. linolsäure linoleic acid with insertion of -en -ene.]
A liquid unsaturated carboxylic acid, C18H30O2, which is found as a glyceride in linseed and most other drying oils: 9,12,15-octadecatrienoic acid.
1887Jrnl. Chem. Soc. LII. 913 The acids from drying oils contain both linolic acid, C18H32O2, and linolenic acid, C18H30O2. 1921Ibid. CXIX. 1307 The product of the action of zinc on linolenic acid hexabromide was a mixture of α- and β-linolenic acids, although only the α-modification occurs naturally. 1951R. Mayer Artist's Handbk. iii. 111 Poppy oil..owes its property of yellowing less than linseed oil to the smaller percentage of linolenic acid it contains. 1969J. I. Routh et al. Essent. Gen., Org. & Biochem. xxxiii. 643 Unsaturated fatty acids such as linoleic and linolenic are essential components of cellular lipids that must be obtained in the diet, since they cannot be synthesized by the body.
Hence linoˈlenate, a salt or ester of linolenic acid.
1909Jrnl. Chem. Soc. XCVI. i. 357 In the mixture of esters used about 22% was ethyl α-linolenate. 1950Jrnl. Nutrition XLI. 485 When fed with suboptimum doses of linoleic acid, the resultant activity of the additional linolenate equalled that of linoleate. |