Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/62107
標題: Antioxidant activity of water extract of Harng Jyur (Chrysanthemum morifolium Ramat)
作者: Duh, P.D.
顏國欽
Tu, Y.Y.
Yen, G.C.
關鍵字: Ames test
antioxidant activity
Chrysanthemum morifolium Ramat
free
radical
linoleic acid
lipid peroxidation
liposome
phenolic
compounds
reactive oxygen species
reducing power
peanut hulls
methanolic extracts
lipid-peroxidation
green tea
oxygen
inhibition
toxicity
radicals
systems
期刊/報告no:: Food Science and Technology-Lebensmittel-Wissenschaft & Technologie, Volume 32, Issue 5, Page(s) 269-277.
摘要: The antioxidant activity of water extracts of Harng Jyur (Chrysanthemum morifolium Ramat) from four varieties, including Huang Harng Jyur (HHJ), Bai Hai ng Jyur (BHJ), Gan Harng Jyur (GHJ), and Kung Harng Jyur (KHJ), was investigated. The water extracts of the four Harng Jyur varieties showed strong antioxidant activity in linoleic acid and liposome model systems. Each extract at 20 mg exhibited 65.3-71.8 % inhibition on malondialdehyde formation of rat liver homogenate in vitro, greater than 20 mg of tocopherol. A cor relation established between the total phenolic compounds and antioxidant activity, yielded a coefficient of r(2) = 0.934, 0.997, 0.758 and 0.983 for HHJ, BHJ, GHJ and KHJ respectively. Each extract of the four Harng Jyur varieties had effective activities as radical scavengers, metal chelators, and active oxygen scavengers. These properties may be the major reasons for the inhibition of lipid peroxidation. Of the four varieties, BHJ was the most significant antioxidative material. No mutagenicity in the four varieties was found in Salmonella typhimurium TA 98, either with or without S9 mix. (C) 1999 Academic Press.
URI: http://hdl.handle.net/11455/62107
ISSN: 0023-6438
Appears in Collections:食品暨應用生物科技學系

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