Antioxidant activity and constituents of extracts from the root of Garcinia multiflora

Jyh Horng Wu, Yu Tang Tung, Chiou Fung Chyu, Shih Chang Chien, Sheng Yang Wang, Shang Tzen Chang, Yueh Hsiung Kuo

研究成果: 雜誌貢獻文章同行評審

18 引文 斯高帕斯(Scopus)


The methanolic extract of the root of Garcinia multiflora and its derived soluble fractions, namely those soluble in ethyl acetate (EtOAc), n-butanol, and water, were screened for their antioxidant activities. Among them, the EtOAc-soluble fraction exhibited the highest scavenging activity against the 1,1-dipheny1,2-picrylhydrazyl radical, the highest superoxide radical scavenging activity, and the strongest reducing power. In addition, according to the bioactivity-guided isolation, 26 specific phytocompounds, including 3 aromatics, 3 benzophenones, 3 flavonoids, 3 isocoumarins, 1 phloroglucinol, 6 steroids, and 7 xanthones, were isolated from the EtOAc-soluble fraction and identified. Of these, 2,4,3′,4′-tetrahydroxy-6-methoxybenzophenone and 1,3,6,7-tetrahydroxyxanthone were found to be the major bioactive constituents, present in the crude extract in concentrations of 3.9 and 15.6 mg/g, respectively. These two compounds had similar antioxidant activities to (+)-catechin, a well-known antioxidant.
頁(從 - 到)383-389
期刊Journal of Wood Science
出版狀態已發佈 - 10月 2008

ASJC Scopus subject areas

  • 生物材料


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