EDTA脱钙法制备甲壳素  

Study on the preparation of chitin with substituting EDTA for HCl

作　　者：刘毅[1] 杨丹[1] 何兰珍[1] 

机构地区：[1]湛江海洋大学理学院

出　　处：《化学研究与应用》2004年第2期278-279,共2页Chemical Research and Application

基　　金：广东省教育厅自然科学研究项目 (0 15 1) ;广东省自然科学基金资助项目 (0 3 3 984)

摘　　要：The methods using EDTA and HCl to remove CaCO3 in preparation of Chitin were studied by IR spectrometer and analyzing the properties of chitin.The results showed that EDTA could replace HCl in the production of chitin for removing CaCO3.Especially owing to the mechanism of removing CaCO3 that EDTA possessed,there was nearly no damage to the molecular chains of chitin during the process of removing CaCO3.The molecule mass of its product was bigger than that product treated by HCl for removing CaCO3.Therefore,The high relative molecular mass chitin and chitosan could be prepared in the same condition,and all the other properties such as productivity,degree of deacetylation and color were better than that product treated by HCl.Furthermore,this process could reduce the pollution in production of chitin,and the cost was not higher than the process with HCl.The methods using EDTA and HCl to remove CaCO_3 in preparation of Chitin were studied by IR spectrometer and analyzing the properties of chitin.The results showed that EDTA could replace HCl in the production of chitin for removing CaCO_3.Especially owing to the mechanism of removing CaCO_3 that EDTA possessed,there was nearly no damage to the molecular chains of chitin during the process of removing CaCO_3.The molecule mass of its product was bigger than that product treated by HCl for removing CaCO_3.Therefore,The high relative molecular mass chitin and chitosan could be prepared in the same condition,and all the other properties such as productivity,degree of deacetylation and color were better than that product treated by HCl.Furthermore,this process could reduce the pollution in production of chitin,and the cost was not higher than the process with HCl.

关 键 词：甲壳素 制备 EDTA 脱钙法 

分 类 号：O636.1[理学—高分子化学]