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

An earlier paper on the nonpolar lipids of Amaranthus palmeri describe d the compositions of the saturated fatty alcohol and wax ester compon ents of the leaves and flowering parts. In this paper, the composition s of eaters containing unsaturated acyl moieties (triglycerides, stery l esters, and terpenol esters), as determined by capillary gas chromat ography/mass spectroscopy (GC/MS) analysis, are presented. In addition , the free fatty acid, sterol, and triterpenol components were charact erized. The triglycerides constituted the major class of esters. The m ajor hydroxylated constituents were palmitic, linoleic, and oleic acid s and the sterol chondrillasterol. The sterols campesterol, stigmaster ol, ergost-7-en-3 beta-ol, chondrillast-7-enol, and 24-ethylidenechole st-7-en-3 beta-ol and the triterpenols beta- and alpha-amyrin, lupeol, cycloartenol, and 24-methylenecycloartenol were present in lesser qua ntities.