抗氧化作用__(期刊论文)

半夏中β谷甾醇的抗氧化作用研究

http://www.100md.com 《广东药学院学报》 2004年第3期

抗氧化作用,,β谷甾醇；抗氧化作用；·OH自由基；自由基,1材料与方法,2实验结果与分析,3讨论,参考文献

     摘要研究半夏中β谷甾醇对自由基的消除能力及抗氧化作用。通过测定β谷甾醇对Fenton反应产生的羟自由基(·OH)的清除率；对超氧阴离子(O·2)的抑制率；及其在猪油中抗氧化活性，发现β谷甾醇对氧自由基具有较强的抑制作用，对油脂也有较强的抗氧化作用。表明β谷甾醇具有作为天然油脂抗氧化剂的潜力。

    关键词 β谷甾醇；抗氧化作用；·OH自由基；自由基

    Study in antioxidative effect of βsitosteroll

    LIU Huiqiong, GUO Shuhao, SHEN Yinseng, LI Xiaomeng

    (1. Dept. of Pharmacy, Guangdong College of Pharmacy, Guangzhou，Guangdong 510240; 2. Dept. of Chemistry, Jinan University, Guangzhou，Guangdong 510632; 3. Dept.of Traditional Chinese Medicine, Jinan University, Guangzhou，Guangdong 510632)

    Abstract The antioxidant and free radical scavenging activities were detected in βsitosterol of Pinellia ternate (Thunb.) Breit. The result showed that the extracts can effectively scavenge hydroxyl (·OH)radical and superoxide anion (O·2) radical，and it can effectively inhibit the lard preoxidation. All of these resultsindicatethat βsitosterol of Pinellia ternate(Thunb.) Breit is of potentialvalue as oil and fat antioxidant in food industry. ......

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