Please use this identifier to cite or link to this item:
標題: Antioxidant and radical scavenging properties of extracts from Ganoderma tsugae
作者: Yen, G.C.
Wu, J.Y.
關鍵字: lipid-peroxidation;oxidation;acid;food
Project: Food Chemistry
期刊/報告no:: Food Chemistry, Volume 65, Issue 3, Page(s) 375-379.
The antioxidant activities and scavenging effects on free radicals of extracts from Ganoderma were investigated. The methanolic extracts of Ganoderma tsugae (MEGT) showed the strongest antioxidant activity of five species of Ganoderma tested. MEGT exhibited substantial antioxidant activity in the linoleic acid and rat liver microsome peroxidation systems. The antioxidant activity of MEGT was stronger than alpha-tocopherol. MEGT had a strong chelating effect on Fe2+. MEGT showed a marked and concentration-dependent scavenging activity on the 1,1-diphenyl-2-picrylhydrazyl radical. MEGT also exhibited a strong scavenging effect on the hydroxyl radical as measured by electron paramagnetic resonance spectrometry. The formation of 8-hydroxy-2'-deoxyguanosine, from 2'-deoxyguanosine induced by various prooxidants, was reduced by MEGT. In view of these results, the antioxidant and radical scavenging activities of Ganoderma may have an important role on inhibition of lipid peroxidation in biological systems. (C) 1999 Elsevier Science Ltd. All rights reserved.
ISSN: 0308-8146
DOI: 10.1016/s0308-8146(98)00239-8
Appears in Collections:食品暨應用生物科技學系

Show full item record

Google ScholarTM




Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.