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Sterols, esterified sterols, and glycosylated sterols of cow pea lipids (Vigna uguiculata).

Mahadevappa, V. G. and Raina, P. L. (1981) Sterols, esterified sterols, and glycosylated sterols of cow pea lipids (Vigna uguiculata). Journal of Agricultural and Food Chemistry, 29 (6). 1225-1227, 14 ref..

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4 sterol-containing lipid fractions, viz., free sterol, esterified sterol, sterol glycoside, and esterified sterol glycoside, were isolated from the chloroform/methanol extracted lipids of cow pea by preparative column and TLC. On a total lipid basis, these comprised 0.13%, 0.024%, 0.036%, and 0.029%. The major fatty acids in both the esterified fractions were linoleic, linolenic, and palmitic acids. Esterified sterol was more unsaturated (calculated iodine value of 139) than esterified sterol glycoside (calculated value of 93). All the 4 sterol lipids contained high proportions of beta-sitosterol and stigmasterol. About 3% campesterol has also been reported. The sugar identified in both the glycosylated sterols was only D -glucose. On the basis of the findings, the major representative spp. deduced are as follows: esterified sterols, beta-sitosterol/stigmasterol linoleate, and to a lesser extent linolenate and palmitate; sterol glycoside, beta-D -glucopyranosyl-(13)-S where S represents either beta-sitosterol or stigmasterol; esterified sterol glycoside, 6-O-acyl-beta-D -glucopyranosyl-(13)-S where S again represents either beta-sitosterol or stigmasterol.

Item Type: Article
Uncontrolled Keywords: STEROIDS-; cowpeas, sterols containing lipids detn. in; LIPIDS-; LEGUMES-
Subjects: 500 Natural Sciences and Mathematics > 07 Life Sciences > 03 Biochemistry & Molecular Biology > 11 Lipid Biochemistry
600 Technology > 08 Food technology > 22 Legumes-Pulses
Divisions: Dept. of Biochemistry
Depositing User: Food Sci. & Technol. Information Services
Date Deposited: 24 Nov 2016 10:55
Last Modified: 24 Nov 2016 10:55
URI: http://ir.cftri.com/id/eprint/6806

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