Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/61777
DC FieldValueLanguage
dc.contributor.authorYang, J.H.en_US
dc.contributor.author毛正倫zh_TW
dc.contributor.authorTsai, S.Y.en_US
dc.contributor.authorHan, C.M.en_US
dc.contributor.authorShih, C.C.en_US
dc.contributor.authorMau, J.L.en_US
dc.date2006zh_TW
dc.date.accessioned2014-06-09T06:25:49Z-
dc.date.available2014-06-09T06:25:49Z-
dc.identifier.issn0192-415Xzh_TW
dc.identifier.urihttp://hdl.handle.net/11455/61777-
dc.description.abstractGlossogyne tenuifolia (Labill) Cass. (Compositae) is a special medicinal plant in the Pescadores Islands. Ethanolic, cold and hot water extracts were prepared from the dried herb and their antioxidant properties and components were studied. Ascorbic acid, alpha-tocopherol, butylated hydroxyanisole, citric and ethylenediaminetetraacetic acids were used in assays for comparison. With regard to EC50 values in antioxidant activity, ethanolic and hot water extracts (0.08 and 0.09 mg/ml) were much more effective than the cold water extract (0.76 mg/ml). At 1.0 mg/ml, reducing capacities were 1.57, 0.31 and 1.04 for ethanolic, cold water and hot water extracts, respectively Scavenging abilities on 1,1-diphenyl-2-picrylhydrazyl radicals were in descending order: ethanolic > cold water > hot water extracts. At 20 mg/ml, the hot water extract chelated all hydroxyl ions (100%) whereas the scavenging ability of the cold water extract was 68.86%. Chelating abilities on ferrous ions were in descending order: cold water > hot water > ethanolic extracts. Phenols were found to be the major antioxidant components. All EC50 values were below 20 mg/ml, and some even below 0.1 mg/ml, indicating that all three extracts from G. tenuifolia were rich in antioxidant properties.en_US
dc.language.isoen_USzh_TW
dc.relationAmerican Journal of Chinese Medicineen_US
dc.relation.ispartofseriesAmerican Journal of Chinese Medicine, Volume 34, Issue 4, Page(s) 707-720.en_US
dc.relation.urihttp://dx.doi.org/10.1142/s0192415x06004223en_US
dc.subjectGlossogyne tenuifoliaen_US
dc.subjectantioxidant activityen_US
dc.subjectreducing capacityen_US
dc.subjectscavenging abilityen_US
dc.subjectchelating abilityen_US
dc.subjectantioxidant componentsen_US
dc.subjectmaillard reaction-productsen_US
dc.subjectalpha-tocopherolen_US
dc.subjectplant-leavesen_US
dc.subjectautoxidationen_US
dc.subjectoilen_US
dc.titleAntioxidant properties of Glossogyne tenuifoliaen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1142/s0192415x06004223zh_TW
item.languageiso639-1en_US-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.openairetypeJournal Article-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.fulltextno fulltext-
Appears in Collections:食品暨應用生物科技學系
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