An innovative method for preparation of acid-free-water-soluble low-molecular-weight chitosan (AFWSLMWC)

被引：28
|
作者：
Yue, Wu [2 ,3 ]
Yao, Pingjia [1 ,3 ]
Wei, Yuanan [1 ,2 ,3 ]
Li, Shiqian [2 ]
Lai, Fang [2 ]
Liu, Xiongmin [2 ]
机构：
[1] Guangxi Univ, Coll Life Sci & Technol, Nanning 530004, Peoples R China
[2] Guangxi Univ, Coll Chem & Chem Engn, Nanning 530004, Peoples R China
[3] Guangxi Univ, Guangxi Key Lab Subtrop Bioresource Conservat & U, Nanning 530004, Peoples R China
来源：
FOOD CHEMISTRY | 2008年 / 108卷 / 03期
关键词：
acid-free-water-soluble; low-molecular-weight chitosan; ozone; percent yield; chitosan; weight-average molecular weight;
D O I：
10.1016/j.foodchem.2007.11.047
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The ozone generated from compressed oxygen by a laboratory-scale corona discharge generator was used for the preparation of acidfree-water-soluble low-molecular-weight chitosan (AFWSLMWC). Factors affecting the percent yield of AFWSLMWC were studied in batch experiments. AFWSLMWC with a molecular weight of 4.3-13.1 kDa was obtained. IR spectra demonstrated that the chemical structures of AFWSLMWC were not modified during the depolymerisation process. There was no significant change of the total degree of deacetylation (DD) of AFWSLMWC, compared with the initial chitosan. The method is promisingly suitable for scale-up manufacture of acid-free-water-soluble low-molecular-weight chitosan. (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1082 / 1087
页数：6
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