| 虫草与富硒虫草多糖的体外抗氧化活性 |
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| 引用本文： | 武忠伟,许桂芳,曹蓬勃,耿杰. 虫草与富硒虫草多糖的体外抗氧化活性[J]. 食品科学, 2011, 32(9): 76. DOI: 10.7506/spkx1002-6630-201109017 |
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| 作者姓名： | 武忠伟 许桂芳 曹蓬勃 耿杰 |
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| 作者单位： | 河南科技学院生物工程系;辽宁大学生命科学院; |
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| 基金项目： | 河南省新乡市科技发展项目(09G045); 河南科技学院重点科研基金资助项目(5048) |
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| 摘 要： | 采用Fenton法和邻苯三酚自氧化法测定虫草和富硒虫草多糖对.OH、O2-.和H2O2的清除率。结果表明:虫草多糖对O-2.和H2O2的清除能力依次为富硒虫草胞外多糖>富硒虫草胞内多糖>虫草胞外多糖>虫草胞内多糖,而对.OH的清除能力依次为:富硒虫草胞外多糖>虫草胞外多糖>富硒虫草胞内多糖>虫草胞内多糖;当100mg/L多糖溶液添加量分别高于80、40、90μL时,各组多糖对.OH、O2-.和H2O2 3种自由基的抑制率均可高于50%。
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| 关 键 词： | 虫草多糖 富硒虫草 自由基 体外抗氧化 |
Antioxidant Activity of Intracellular and Extracellular Polysaccharides from Regular and Se-rich Cordyceps sinensis in vitro |
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| WU Zhong-wei,XU Gui-fang,CAO Peng-bo,GENG Jie. Antioxidant Activity of Intracellular and Extracellular Polysaccharides from Regular and Se-rich Cordyceps sinensis in vitro[J]. Food Science, 2011, 32(9): 76. DOI: 10.7506/spkx1002-6630-201109017 |
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| Authors: | WU Zhong-wei XU Gui-fang CAO Peng-bo GENG Jie |
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| Affiliation: | WU Zhong-wei1,XU Gui-fang1,CAO Peng-bo2,GENG Jie1(1.Department of Bioengineering,Henan Institute of Science and Technology,Xinxiang 453003,China,2.School of Life Science,Liaoning University,Shenyang 110036,China) |
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| Abstract: | The scavenging effects of polysaccharides from the mycelia(intracellular) and culture supernatant(extracellular) of Cordyceps sinensis after 6 days of cultivation were determined against hydroxyl free radicals generated in a Fenton reaction system,superoxide anion free radicals(by pyrogallol auto-oxidation method) and hydrogen peroxide.The extracellular polysaccharides from Se-rich Cordyceps sinensis had the strongest ability to scavenge superoxide anion free radicals and hydrogen peroxide,followed by the i... |
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| Keywords: | polysaccharides from Cordyceps sinensis Se-rich Cordyceps sinensis radicals antioxidation in vitro |
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