Constituents and Anti-oxidizing Properties of Lipid Fractions from Prunus tomentosa Thumb Seed in vitro

Abstract

Abstract: The radical scavenging potential of lipidic fractions from Prunus tomentosa Thumb seed was evaluated for their capacity to scavenge the relatively stable radical 2,2-diphenyl-1-picrylhydrazyl (DPPH) by assaying the change of absorbance of the free radical solution at 517nm, with data obtained compared with Trolox. Results showed that there is potent anti- oxidizing activity in the test system. Anti-oxidizing constituents are characterized by capillary gas chromatography coupled with mass spectrometry(GC/MS) detection to be composed of gamma-sitosterol, squalene, retinoic acid methyl ester, gamma- tocopherol, champacol and cis-alpha-copaene-8-ol. They are the most important natural anti-oxidizing contained in Prunus tomentosa Thumb seed oil , with attribution to the DPPH radical-scavenging and the anti-oxidizing potential as a result of the combination of such specific components. Data obtained also suggest that the oil possesses biological properties that could partially be beneficial to health as synergic effects of diet, the information is of importance in processing and utilizing the crude oils and theirb yproducts.

Key words: , Prunus tomentosa Thumb seed； lipid fractions； anti-oxidizing activities； GC/MS；

CHENG Shuang, CUI Qing-Xin, CHEN Wei. Constituents and Anti-oxidizing Properties of Lipid Fractions from Prunus tomentosa Thumb Seed in vitro[J]. FOOD SCIENCE, 2006, 27(5): 83-87.

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Constituents and Anti-oxidizing Properties of Lipid Fractions from Prunus tomentosa Thumb Seed in vitro

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