請用此 Handle URI 來引用此文件: http://hdl.handle.net/11455/62124
標題: Antioxidant effects of water extracts from barley (Hordeum vulgare L.) prepared under different roasting temperatures
作者: Duh, P.D.
顏國欽
Yen, G.C.
Yen, W.J.
Chang, L.W.
關鍵字: antioxidant effect
lipid peroxidation
barley (Hordeum vulgare L.)
different roasting temperatures
oxidative damage
free radical
scavenger
catechin
tocopherol
lutein
lipid-peroxidation
hydroxyl radicals
acid
constituents
deoxyribose
components
oxidation
期刊/報告no:: Journal of Agricultural and Food Chemistry, Volume 49, Issue 3, Page(s) 1455-1463.
摘要: The antioxidant effects of water extracts of roasted barley (S;VERB) were investigated under different roasting temperatures and compared with those of the water extracts of unroasted barley (WEUB). It was found that the Maillard reaction products increased upon increasing the roasting temperatures. Both WERE and WEUB exhibited significant antioxidant activities in linoleic acid and liposome model systems. Although WERE and WEUB afforded considerable protection against the. damage of deoxyribose and proteins, the antioxidant efficiency of roasted samples was weaker than that of unroasted samples because of the reduction of antioxidant components (catechin, tocopherol, and lutein) with increasing roasting temperature. Unroasted samples were more effective in reducing power, quenching free radical, hydroxyl radical, and chelating iron;than the roasted samples. The different antioxidant activity among roasted and unroasted barley samples may be partly attributed to the changes in catechin, tocopherol, and lutein contents.
URI: http://hdl.handle.net/11455/62124
ISSN: 0021-8561
文章連結: http://dx.doi.org/10.1021/jf000882l
顯示於類別:食品暨應用生物科技學系

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