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| 薤白多糖抗氧化活性研究 | |
| 引用本文： | 夏新奎,张建新. 薤白多糖抗氧化活性研究[J]. 信阳农业高等专科学校学报, 2007, 17(4): 138-139 |
| 作者姓名： | 夏新奎 张建新 |
| 作者单位： | 1. 西北农林科技大学,食品科学与工程学院,陕西,杨凌,712100;信阳农业高等专科学校,生物技术系,河南,信阳,464000 2. 西北农林科技大学,食品科学与工程学院,陕西,杨凌,712100 |
| 摘 要： | 利用H2O2/Fe2+体系法和邻苯三酚自氧化体系法研究薤白多糖半纯品(PAM)及三种精制多糖(PAM-Ib,PAM-IIa和PAM-III’)的体外抗氧化活性。分别比较了PAM,PAM-Ib,PAM-IIa及PAM-III’对.OH和O2-.的清除率。结果表明,PAM具有抗.OH和O2-.的双重功效,且呈剂量依赖关系。PAM-Ib清除.OH和O2-.活性较弱,但其活性大小也与多糖的用量成正比,PAM-IIa对.OH和O2-.均无清除作用。PAM-III’具有较高的清除.OH作用,但对O2-.不起作用。 |
| 关 键 词： | 薤白 多糖 抗氧化活性 |
| 文章编号： | 1008-4916（2007）04-0138-02 |
| 修稿时间： | 2007-08-18 |
Study on the antioxidative activities of polysaccharides from Allium macrosttemon Bge. |
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| XIA Xin-kui,ZHANG Jian-xin. Study on the antioxidative activities of polysaccharides from Allium macrosttemon Bge.[J]. Journal of Xinyang Agricultural College, 2007, 17(4): 138-139 | |
| Authors: | XIA Xin-kui ZHANG Jian-xin |
| Affiliation: | 1. College of Food Sci-Eng. , Northwest Sci-Teeh University of Agriculture and Forestry, Yangling 712100, China; 2 Dept. of Biological Technology , Xinyang Agricultural College, Xinyang 464000, China |
| Abstract: | The extracorporeal antioxidative activities of polysaccharides(PAM,PAM-Ib,PAM-IIa and PAM-III')from Allium macrosttemon Bge.are studied by H202/Fe2+system and pyrogallol system.The effects of clearing hydroxid radical(·OH)and superoxide anion radical(O2-·) are analysed.The result shows that ·OH and O2-·can be inhibited by PAM and PAM-Ib,the scavenging effect of PAM is stronger than PAM-Ib's,their activities and amount are relative.It is proved by thetest that PAM-III'is more effective in scavenging ·OH,but it can't inhibit O2-·'.PAM-IIa shows no evident effect in scavenging O2-· or ·OH. |
| Keywords: | Allium macrostternon Bge. polysaccharides antioxidative activity |
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