Sterols of the oyster,Crassostrea virginica |
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| Authors: | Shin-Ichi Teshima Glenn W. Patterson Samson R. Dutky |
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| Affiliation: | (1) Department of Botany, University of Maryland, 10742 College Park, MC;(2) Insect Physiology Laboratory, Agricultural Research Service, USDA, 20705 Beltsville, MD;(3) Present address: Faculty of Fisheries, Kagoshima University, Japan |
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| Abstract: | A commericial sample of the oyster,Crassostrea virginica, obtained from Maryland waters of the Chesapeake Bay, contained 31 desmethylesterols and at least eight 4-monomethylsterols. The combined gas liquid chromatography-mass spectra of the minor components showed the presence of 6 unusual sterols, 24-ethylcholest-22-en-3β ol, 4α-methyl-24-ethylcholestan-3β-ol, occelasterol, (24E)-24-propylidene-cholest-5-en-3β-ol, (24ZO-24-propylidene-cholest-5-en-3β-ol, and 24-methylene-cholestanol. The C-24 configuration of 24-ethylcholest-5-enol, 24-methyl-cholesta-5,22-dienol, and 24-ethylcholesta-5,22 dienol were elucidated by 220 MHz nuclear magnetic resonance spectrometry. |
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