LOW MOLECULAR WEIGHT O-CARBOXYMETHYLATED CHITOSANS DERIVED FROM IRRADIATED CHITOSAN AND THEIR ANTIBACTERIAL ACTIVITY

Xu-pin  Zhuang; Xiao-fei  Liu; Zhi  Li; Yun-lin  Guan; Kang-de  Yao

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LOW MOLECULAR WEIGHT O-CARBOXYMETHYLATED CHITOSANS DERIVED FROM IRRADIATED CHITOSAN AND THEIR ANTIBACTERIAL ACTIVITY

Papers | Updated：2021-06-21

- LOW MOLECULAR WEIGHT O-CARBOXYMETHYLATED CHITOSANS DERIVED FROM IRRADIATED CHITOSAN AND THEIR ANTIBACTERIAL ACTIVITY
- Vol. 22, Issue 6, Pages: 521-527(2004)
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- Published：20 December 2004
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Xu-pin Zhuang, Xiao-fei Liu, Zhi Li, et al. LOW MOLECULAR WEIGHT O-CARBOXYMETHYLATED CHITOSANS DERIVED FROM IRRADIATED CHITOSAN AND THEIR ANTIBACTERIAL ACTIVITY[J]. 2004, 22(6): 521-527.
DOI：

Xu-pin Zhuang, Xiao-fei Liu, Zhi Li, et al. LOW MOLECULAR WEIGHT O-CARBOXYMETHYLATED CHITOSANS DERIVED FROM IRRADIATED CHITOSAN AND THEIR ANTIBACTERIAL ACTIVITY[J]. 2004, 22(6): 521-527. DOI：

摘要

Original chitosan with Mv of 2.7 105 was degraded by irradiation with -rays and a series of low molecular weight O-carboxymethylated chitosans (O-CMCh) were prepared based on the irradiated chitosan. A kinetic model of the irradiation of chitosan was put forward. Results show that the irradiation degradation of chitosan obeys the rule of random degradation and the degree of deacetylation of irradiated chitosan is slightly raised. The antibacterial activity of O-CMCh is significantly influenced by its MW

and a suppositional antibacterial peak appears when Mv is equal to 2 105.

Abstract

and a suppositional antibacterial peak appears when Mv is equal to 2 105.

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