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题名: Efficient hydrolysis of chitosan in ionic liquids
作者: Zhang, Zehui1, 2;  Li, Changzhi1;  Wang, Qian1;  Zhao, Zongbao K.1, 3
通讯作者: 赵宗保
关键词: Chitosan ;  Hydrolysis ;  Ionic liquids ;  Glucosamine ;  Chitin
刊名: CARBOHYDRATE POLYMERS
发表日期: 2009-11-17
DOI: 10.1016/j.carbpol.2009.06.002
卷: 78, 期:4, 页:685-689
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1816
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Applied ;  Chemistry, Organic ;  Polymer Science
研究领域[WOS]: Chemistry ;  Polymer Science
英文摘要: Effective hydrolysis of chitosan, the N-deacetylated product of chitin, remains challenging. Here, we report acid-promoted hydrolysis of chitosan in imidazolium based ionic liquids with good total reducing sugars (TRS) yield under mild conditions. TRS yield reached over 60% in the presence of about 6.0 wt% concentrated hydrochloric acid at 100 degrees C within 7 h. Kinetic modeling of a typical experimental data set suggested that the hydrolysis most likely followed a consecutive first-order reaction sequence, where k(1) and k(2), the rate constants for TRS formation and degradation, were determined to be 0.01372 and 0.00015 min(-1), respectively. Our method may be useful to explore new applications of natural chitin resources. (C) 2009 Elsevier Ltd. All rights reserved.
关键词[WOS]: BETA-CHITIN ;  OLIGOSACCHARIDES ;  PURIFICATION ;  DISSOLUTION ;  CELLULOSE ;  KINETICS ;  CHLORIDE ;  SOLVENT ;  SYSTEMS ;  ACID
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000270624200006
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/102557
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.CAS, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, Zehui,Li, Changzhi,Wang, Qian,et al. Efficient hydrolysis of chitosan in ionic liquids[J]. CARBOHYDRATE POLYMERS,2009,78(4):685-689.
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