期刊
CARBOHYDRATE POLYMERS
卷 87, 期 1, 页码 935-938出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2011.08.018
关键词
Chitosan; Degradation; gamma-Ray; Hydrogen peroxide
资金
- International Atomic Energy Agency (IAEA) [14773/R0]
Chitosan from squid pens with deacetylation degree (DD) of 70% and average molecular weight (M-wo) 90.5 x 10(3) in dilute lactic acid solution containing H2O2 (1%) was effectively degraded by irradiation with gamma Co-60 radiation (1.33 kGy/h) at doses in the range 4-16 kGy. Based on the results of M-w measured by gel permeation chromatography (GPC), it was concluded that there was particularly strong synergy between H2O2 and radiation for degradation at the lower radiation doses studied. Radiation scission yields (Gs) were found out to be 2.2 mu mol/J and 0.2 mu mol/J for 5% chitosan with and without 1% H2O2, respectively. The DD of degraded chitosan measured from IR spectra was almost unchanged by the treatment. (C) 2011 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据