Journal of Shanghai Jiaotong University ›› 2014, Vol. 48 ›› Issue (11): 1613-1620.

• Mathematical sciences and chemical • Previous Articles     Next Articles

Modification of Chitosan and Free Radical Scavenging Activities

ZHOU Yuanjing1,XU Qing2,ZHAO Hongxia3,GAO Guilong4   

  1. ( 1. Guizhou Institute of Analysis and Testing, Guiyang 550002, China; 2. Guizhou Institute of Biology, Guiyang 550009, China;  3. Clinical Hospital Affiliated to Guiyang Medical Univiersity, Department of Rehabilitation, Guiyang 550004, China; 4. Guizhou Academy of Sciences, Guiyang 550001, China)
  • Received:2014-04-30


Abstract: Chitosan and its derivatives are unique cationic copolymer of glucosamine and Nacetylglucosamine. They have drawn much attention in various fields, including pharmaceutical, biomedicine, water treatment, cosmetics, agriculture, and food industry, due to their useful characteristics such as biorenewabilty, biodegradability, biocompatibility, bioadhesivity and nontoxicity. This paper introduced the synthetic method of different molecular weight, different degree of deacetylation and Omodified chitosan. Moreover, it revewed the recent free radical scavenging activities of chitosan and its derivatives and discussed in brief the roles molecular weight, degree of deacetylation and Omodification played in free radical scavenging.

Key words: chitosan, preparation method, modification, free radical scavenging

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