Sterol Compositions in Some Cucurbitaceae Vegetable Oils

[摘要] Three sterol fractions; 4-desmethyl-, 4-monomethyl-, and 4,4-dimethylsterol, separated by thin layer chromatography from the unsaponifiables of five Cucurbitaceae (cucumber, watermelon, sponge cucumber, gourd and snake gourd) seed oils were analyzed by gas liquid chromatography and combined gas liquid chromatography-mass spectrometry. ¥á-Spinasterol, ¥Ä7,22,25-stigmastatrienol and ¥Ä7,25-stigmastadienol isolated from the 4-desmethylsterol fraction were identified by IR, NMR and mass spectrometry.

[学科分类] 化学（综合）