NONPOLAR LIPIDS OF AMARANTHUS PALMERI WATS,S .2. UNSATURATED ESTERS AND FREE FATTY ACIDS, STEROLS, AND TRITERPENOLS

摘要

An earlier paper on the nonpolar lipids of Amaranthus palmeri described the compositions of the saturated fatty alcohol and wax ester components of the leaves and flowering parts. In this paper, the compositions of eaters containing unsaturated acyl moieties (triglycerides, steryl esters, and terpenol esters), as determined by capillary gas chromatography/mass spectroscopy (GC/MS) analysis, are presented. In addition, the free fatty acid, sterol, and triterpenol components were characterized. The triglycerides constituted the major class of esters. The major hydroxylated constituents were palmitic, linoleic, and oleic acids and the sterol chondrillasterol. The sterols campesterol, stigmasterol, ergost-7-en-3 beta-ol, chondrillast-7-enol, and 24-ethylidenecholest-7-en-3 beta-ol and the triterpenols beta- and alpha-amyrin, lupeol, cycloartenol, and 24-methylenecycloartenol were present in lesser quantities. [References: 16]