| Literature DB >> 26065774 |
Wu Yue1, Pingjia Yao2, Yuanan Wei3, Shiqian Li4, Fang Lai4, Xiongmin Liu4.
Abstract
The ozone generated from compressed oxygen by a laboratory-scale corona discharge generator was used for the preparation of acid-free-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 4.3-13.1kDa 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.Entities:
Keywords: Acid-free-water-soluble; Chitosan; Low-molecular-weight chitosan; Ozone; Percent yield; Weight-average molecular weight
Year: 2007 PMID： 26065774 DOI： 10.1016/j.foodchem.2007.11.047
Source DB: PubMed Journal: Food Chem ISSN： 0308-8146 Impact factor: 7.514