| 不同取代度羧甲基壳聚糖的抗氧化性能研究 |
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| 引用本文： | 姚倩,孙涛,周冬香,毛芳.不同取代度羧甲基壳聚糖的抗氧化性能研究[J].农业科学与技术,2008,9(1):5-7. |
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| 作者姓名： | 姚倩 孙涛 周冬香 毛芳 |
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| 作者单位： | 上海水产大学食品学院,上海200090 |
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| 基金项目： | 上海市教委资助项目
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上海市重点学科建设基金 |
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| 摘 要： | 壳聚糖是一种来源于甲壳类动物外壳的天然碱性多糖，有良好的抗氧化能力。羧甲基壳聚糖是壳聚糖经羧甲基化后的一类衍生物，根据羧甲基的取代位置不同，羧甲基壳聚糖可以分为O-羧甲基壳聚糖、N-羧甲基壳聚糖和N，O-羧甲基壳聚糖。有研究表明，羧甲基在多糖主链上取代的位置和程度都直接影响羧甲基壳聚糖的各种性能。笔者以低聚壳聚糖（Chitosan oligosaccharide，COS）为原料，
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| 关 键 词： | 羧甲基壳聚糖 抗氧化性能 碱性多糖 取代度 |
Antoioxidant Activity of Carboxymethyl Chitosan with Different Substituted Degrees |
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| YAO Qian,SUN Tao,ZHOU Dong-xiang,MAO Fang.Antoioxidant Activity of Carboxymethyl Chitosan with Different Substituted Degrees[J].Agricultural Science ＆ Technology,2008,9(1):5-7. |
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| Authors: | YAO Qian SUN Tao ZHOU Dong-xiang MAO Fang |
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| Institution: | (College of Food Science, Shanghai Fisheries University, Shanghai 200090) |
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| Abstract: | Objective]In order to study the relations among different positions,degrees of substitution and antioxidant ability.Method]N,O-carboxymethyl chitosan(NOA,NOB and NOC)with various degrees of substitution(DS)were obtained by etherizing ehito-oligosaeehaside.Their structure and submg/ml while their DSs of-NH2 position(DSN)were 0.51,0.29 and 0.38 and DSo were 0.74,0.84,0.97respectively.Conclusion]With the increase of |
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| Keywords: | Chitosan oligosaccharide Carboxymethyl chitosan oligosaccharide Degree of substitution Antioxidant activity |
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