| 野生仙人掌多糖抗氧化性研究 |
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| 引用本文： | 杨宁,赵谋明,刘洋.野生仙人掌多糖抗氧化性研究[J].食品科技,2007,32(2):147-150. |
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| 作者姓名： | 杨宁 赵谋明 刘洋 |
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| 作者单位： | 华南理工大学轻工与食品学院,广州,510640 |
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| 摘 要： | 从野生绿仙人掌中采用超滤浓缩醇沉法提取并纯化多糖,用55%和80%浓度的乙醇分段醇析分离得两种粗多糖OMHP1和OMHP2。用分光光度法研究了仙人掌多糖在不同体系中对超氧阴离子、羟自由基、DPPH自由基的清除作用。结果表明,仙人掌多糖能够有效地清除超氧阴离子、羟自由基、DPPH自由基,粗多糖OMHP2的作用效果明显强于OMHP1。
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| 关 键 词： | 仙人掌多糖 自由基 抗氧化作用 |
| 文章编号： | 1005-9989(2007)02-0147-04 |
| 修稿时间： | 2006年8月1日 |
Study on antioxidation of polysaccharide from Opuntia monacantha haw |
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| YANG Ning,ZHAO Mou-ming,LIU Yang.Study on antioxidation of polysaccharide from Opuntia monacantha haw[J].Food Science and Technology,2007,32(2):147-150. |
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| Authors: | YANG Ning ZHAO Mou-ming LIU Yang |
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| Abstract: | Cactus polysaccharides from Opuntia monacantha Haw were extracted and purified by ultrafitration concentration and ethanol precipitation. The extracted polysaccharides were sorted by 55% and 80% concentration ethanol into OMHP1 and OMHP2. The antioxidant potency of the polysaccharides was investigated by spectrophotometry, employing various established in vitra system, such as 1.1-diphenyl-2-picrylhydrazyl(DPPH), superoxide anion, hydroxyl radical scavenging. The results revealed that the extracted polysaccharides had significant free radical-scavenging activity, while OMHP2 had higher free radical-scavenging activity than OMHP1. |
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| Keywords: | cactus polysaccharide free radicals antioxidant activity |
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