全书网本文核心词：取代度。
不同取代度羧甲基壳聚糖的抗氧化性能研究
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作 者：姚倩 孙涛 周冬香 毛芳 YAO Qian SUN Tao ZHOU Dong-xiang MAO Fang 作者单位：上海水产大学食品学院,上海,200090 期 刊：农业科学与技术(英文版) ISTIC Journal：AGRICULTURAL SCIENCE & TECHNOLOGY 年，卷(期)：2008, 9(1) 分类号：X7 Keywords：Chitosan oligosaccharide Carboxymethyl chitosan oligosaccharide Degree of substitution Antioxidant activity
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