Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation

doi:10.1016/j.carres.2005.06.028

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	Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation
	Xing, RE; Liu, S ; Yu, HH; Guo, ZY ; Wang, PB ; Li, CP ; Li, Z; Li, PC
	2005-09-26
发表期刊	CARBOHYDRATE RESEARCH
ISSN	0008-6215
卷号	340 期号:13 页码:2150-2153
文章类型	Article
摘要	The effect of inorganic salts such as sodium chloride on the hydrolysis of chitosan in a microwave field was investigated. While it is known that microwave heating is a convenient way to obtain a wide range of products of different molecular weights only by changing the reaction time and/or the radiation power, the addition of some inorganic salts was shown to effectively accelerate the degradation of chitosan under microwave irradiation. The molecular weight of the degraded chitosan obtained by microwave irradiation was considerably lower than that obtained by traditional heating. Moreover, the molecular weight of degraded chitosan obtained by microwave irradiation assisted under the conditions of added salt was considerably lower than that obtained by microwave irradiation without added salt. Furthermore, the effect of ionic strength of the added salts was not linked with the change of molecular weight.; The effect of inorganic salts such as sodium chloride on the hydrolysis of chitosan in a microwave field was investigated. While it is known that microwave heating is a convenient way to obtain a wide range of products of different molecular weights only by changing the reaction time and/or the radiation power, the addition of some inorganic salts was shown to effectively accelerate the degradation of chitosan under microwave irradiation. The molecular weight of the degraded chitosan obtained by microwave irradiation was considerably lower than that obtained by traditional heating. Moreover, the molecular weight of degraded chitosan obtained by microwave irradiation assisted under the conditions of added salt was considerably lower than that obtained by microwave irradiation without added salt. Furthermore, the effect of ionic strength of the added salts was not linked with the change of molecular weight. FTIR spectral analyses demonstrated that a significantly shorter time was required to obtain a satisfactory molecular weight by the microwave irradiation-assisted inorganic salt method than by microwave irradiation without inorganic salts and conventional technology. (C) 2005 Elsevier Ltd. All rights reserved.
关键词	Salt-assisted Acid Hydrolysis Of Chitosan Microwave Irradiation Chitosan Oligosaccharides Ionic Strength
学科领域	Biochemistry & Molecular Biology ; Chemistry, Applied ; Chemistry, Organic
DOI	10.1016/j.carres.2005.06.028
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000231770600009
引用统计	被引频次：90[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3546
专题	海洋生物技术研发中心海洋环境工程技术研究发展中心
作者单位	1.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China 2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
推荐引用方式 GB/T 7714	Xing, RE,Liu, S,Yu, HH,et al. Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation[J]. CARBOHYDRATE RESEARCH,2005,340(13):2150-2153.
APA	Xing, RE.,Liu, S.,Yu, HH.,Guo, ZY.,Wang, PB.,...&Li, PC.(2005).Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation.CARBOHYDRATE RESEARCH,340(13),2150-2153.
MLA	Xing, RE,et al."Salt-assisted acid hydrolysis of chitosan to oligomers under microwave irradiation".CARBOHYDRATE RESEARCH 340.13(2005):2150-2153.

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