| 低聚羧甲基壳聚糖的抗氧化性能 |
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| 引用本文： | 孙 涛,银旭红,姚 倩,周冬香,邵则淮.低聚羧甲基壳聚糖的抗氧化性能[J].海洋科学,2010,34(2):54-56. |
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| 作者姓名： | 孙 涛 银旭红 姚 倩 周冬香 邵则淮 |
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| 作者单位： | 上海海洋大学,食品学院,上海,201306 |
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| 基金项目： | 上海市教育委员会科研项目(07zz134); 上海市重点学科建设专项基金项目(T1102) |
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| 摘 要： | 将低聚壳聚糖(chitosan oligosaccharide,COS)醚化得到O-羧甲基壳聚糖(O-carboxymethyl chito-sanolig osaccharide,O-CMCOS)和N-羧甲基壳聚糖(N-carboxymethyl chitosanolig osaccharide,N-CMCOS),其取代度(substituting degree,DS)均为0.54,用红外光谱对其结构进行表征。同时,考察了其结构对超氧阴离子的清除活性以及还原能力。结果表明,COS及其衍生物清除超氧阴离子的活性及还原能力的强弱顺序均为:O-CMCOSCOSN-CMCOS。
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| 关 键 词： | 低聚壳聚糖 羧甲基壳聚糖 取代度 抗氧化 还原能力 |
| 收稿时间： | 2009/2/28 0:00:00 |
| 修稿时间： | 2009/6/29 0:00:00 |
Antioxidant activity of carboxymethyl chitosan oligosaccharide |
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| SUN Tao,YIN Xu-hong,YAO Qian,ZHOU Dong-xiang and SHAO Ze-huai.Antioxidant activity of carboxymethyl chitosan oligosaccharide[J].Marine Sciences,2010,34(2):54-56. |
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| Authors: | SUN Tao YIN Xu-hong YAO Qian ZHOU Dong-xiang and SHAO Ze-huai |
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| Institution: | College of Food Science;Shanghai Ocean University;Shanghai 201306;China |
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| Abstract: | O-carboxymethyl chitosan oligosaccharide (O-CMCOS) and N-carboxymethyl chitosan oligosaccharide (N-CMCOS) with the same substituting degree (0.54) of carboxymethyl group were prepared by the etherification of chitosan oligosaccharide (COS),with their structures characterized by FTIR spectra. The orders of COS,O-CMCOS and N-CMCOS scavenging effect on superoxide anion and reducing power were O-CMCOS>COS>N-CMCOS. |
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| Keywords: | chitosan oligosaccharide carboxymethyl chitosan oligosaccharide substituting degree antioxidant activity reducing power |
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