Nonpolar Lipids of Amaranthus palmeri S. Wats. 2. Unsaturated Esters and Free Fatty Acids, Sterols, and Triterpenols
| Autor: | R. F. Arrendale, Ray F. Severson, Oliver D. Dailey |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
chemistry.chemical_classification
Stigmasterol biology Campesterol Fatty alcohol Fatty acid General Chemistry biology.organism_classification Sterol Amaranthus palmeri Wax ester chemistry.chemical_compound chemistry Cycloartenol Organic chemistry lipids (amino acids peptides and proteins) General Agricultural and Biological Sciences |
| Zdroj: | Journal of Agricultural and Food Chemistry. 45:3914-3920 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/jf960708q |
| Popis: | 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 esters 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-3β-ol, chondrillast-7-enol, and 24-ethylidenecholest-7-en-3β-ol and the triterpenols β-and α-amyrin, lupeol, cycloartenol, and 24-methylenecycloartenol were present in lesser quantities. Keywords: Lipid; Amaranthus palmeri; fatty acid; sterol; triterpenol; column chromatography; thin-layer chromatograph... |
| Databáze: | OpenAIRE |
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