Synthesis and preservative application of quaternized carboxymethyl chitosan containing guanidine groups

被引：19
|
作者：
Sang, Wei [1 ]
Tang, Zhe [2 ]
He, Ming-Yang [1 ]
Hua, Yong-Pei [2 ]
Xu, Qi [2 ]
机构：
[1] Changzhou Univ, Sch Chem Engn, Changzhou 213614, Peoples R China
[2] Yancheng Inst Technol, Sch Chem & Biol Engn, Yancheng 224051, Peoples R China
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2015年 / 75卷
关键词：
Carboxymethyl chitosan; Guanidine group; Preservative coating; ANTIMICROBIAL ACTIVITY; N; O-CARBOXYMETHYL CHITOSAN; BARRIER PROPERTIES; DEGRADED CHITOSAN; CHITIN; FILMS; IMPROVE;
D O I：
10.1016/j.ijbiomac.2015.01.009
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
A chitosan derivative, quaternized carboxymethyl chitosan containing guanidine groups (QGCMC), was synthesized and structurally characterized using FT-IR, H-1 NMR spectroscopy. The elemental composition of QGCMC was also investigated. Increase in the molar ratio of materials used for QGCMC synthesis and an increase in the reaction time of QGCMC synthesis led to an increased degree of substitution. QGCMC demonstrated a strong antimicrobial activity at acidic, neutral, and basic pH conditions and could significantly lengthen the shelf life of strawberries. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：489 / 494
页数：6
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