| 壳聚糖澄清剂的脱乙酰度及残留量研究 |
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| 引用本文： | 张彤 徐莲英 等. 壳聚糖澄清剂的脱乙酰度及残留量研究[J]. 医学教育探索, 2001, 0(7): 597-600 |
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| 作者姓名： | 张彤 徐莲英 等 |
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| 作者单位： | 张彤（上海中医药大学中药学院，上海 200032） 徐莲英（上海中医药大学中药学院，上海 200032） 蔡贞贞（上海中医药大学中药学院，上海 200032） |
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| 基金项目： | 上海市教委青年基金资助项目(No.98QN67) |
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| 摘 要： | 目的 对壳聚糖澄清剂的脱乙酰度及精制后的中药水提液中壳聚糖的残留量进行了探讨。方法 用线性滴定测定壳聚糖（游离胺基）的含量。结果 壳聚糖澄清剂的脱乙酰度约80％，在澄清液中壳聚糖残留量小于0．010％。结论 壳聚糖作为精制中药水提液的澄清剂是可行的。
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| 关 键 词： | 壳聚糖 絮凝澄清剂 脱乙酰度 残留量 线性滴定法 中药水提液 |
Studies on degree of deacetylation of chitosan and its residual amount left over in clarified products when used as a clarificant |
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| ZHANG Tong,XU Lian-ying,CAI Zhen-zhen. Studies on degree of deacetylation of chitosan and its residual amount left over in clarified products when used as a clarificant[J]. Researches in Medical Education, 2001, 0(7): 597-600 |
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| Authors: | ZHANG Tong XU Lian-ying CAI Zhen-zhen |
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| Abstract: | Object To study the degree of deacetylation of chitosan and its residual amount left over in the clarified products when chitosan was used as a clarificant. Methods The free amino group in the deacetylated chitosan was determined by linear titration. Results The degree of deacetylation of chitosan was found to be about 80%. The residual amounts left over in the clarified products were lower than 10 -4 . Conclusion The results suggested that it is feasible to use chitosan as a clarificant for refining water extract of TCM. |
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| Keywords: | chitosan clarificant degree of deacetylation of chitosan residual amount left over in the clarified product linear titrimetric method |
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