【作者】呂喜茹; 郭亮; 常明昌; 李振; 王國晉; 馮翠萍

【Author】LV Xiru1; GUO Liang2; CHANG Mingchang1; LI Zhen1; WANG Guojin1; FENG Cuiping1 1Shanxi Agricultural University; Food Science and Engineering College; Taigu ; Shanxi 030801; China; 2Beijing Vocational College of Agriculture; Beijing 102442; China

【作者機(jī)構(gòu)】山西農(nóng)業(yè)大學(xué)食品科學(xué)與工程學(xué)院; 北京農(nóng)業(yè)職業(yè)學(xué)院

【摘要】 為研究姬松茸(Agaricus blazei)粗多糖的抗氧化作用,對姬松茸粗多糖的還原能力、螯合金屬離子能力,清除DPPH·和O2-·的能力及體外抗脂質(zhì)過氧化能力進(jìn)行測定。結(jié)果表明,姬松茸粗多糖具有一定的抗氧化能力,且隨其濃度的增加而增強。當(dāng)濃度為2mg/mL時,還原力測試混合液的吸光值為0.293,對金屬螯合率、DPPH·和O2-·的清除率以及體外脂質(zhì)過氧化抑制率分別為40.1%、88.8%、71.2%和84.5%。

【Abstract】 Antioxidant activity of Agaricus blazei Murill polysaccharide was evaluated by measuring ferricyanide reducing activity,metal chelating activity,DPPH· and O2-· scavenging activities,and lipid oxidation inhibiting activity in vitro. Values of all the test indices increased with increasing concentrations of crude polysaccharide. At 2 mg/mL polysaccharide concentration,low ferricyanide reducing activity was detectable,and recorded metal chelating,DPPH· and O2-· scavenging,and lipid oxidation inhibiting activities were 40.1%,88.8%,71.2% and 84.5%,respectively.

【關(guān)鍵詞】 姬松茸; 粗多糖; 還原力; 金屬螯合率; 自由基清除率; 脂質(zhì)過氧化

【Key words】 Agaricus blazei; polysaccharide; reducing power; metal chelation; radical scavenging activity; lipid oxidation

【基金】山西農(nóng)業(yè)大學(xué)博士科研啟動經(jīng)費項目(編號:412564);; 山西省科技攻關(guān)項目(編號:021025);; 山西省自然科學(xué)基金(編號:2010011043-1)的部分研究內(nèi)容

【文獻(xiàn)出處】 食用菌學(xué)報,Acta Edulis Fungi,編輯部郵箱,2010年01期

【DOI】CNKI:SUN:SYJB.0.2010-01-016

【分類號】S646.19