Structure, Morphology, Thermostability and Irradiation-Mediated Degradation Fractions of Hemicellulose Treated with gamma-Irradiation

doi:10.1007/s12649-016-9489-1

	Structure, Morphology, Thermostability and Irradiation-Mediated Degradation Fractions of Hemicellulose Treated with gamma-Irradiation
	Chen, Jingping 1; Wang, Liuyang 2; Su, Xiaojun 3; Wang, Keqin 4; Wu, Xiaofeng 4; Chen, Liang 4; Xiong, Xingyao 5; Zhou, Hua 2; Liu, Yun 2,4
刊名	WASTE AND BIOMASS VALORIZATION
	2016
卷号	7 期号:6 页码:1415-1425
关键词	Hemicellulose gamma-Irradiation pretreatment Structure Thermal stability Degradation fraction
ISSN号	1877-2641
DOI	10.1007/s12649-016-9489-1
通讯作者	Chen, Jingping
英文摘要	To elucidate the physicochemical properties and degradation mechanism of hemicellulose treated with irradiation doses (from 0 to 1200 kGy), a set of experiments on hemicellulose morphology, structure, molecular weight, free radicals, thermal stability, and irradiation mediated fractions was performed. Fourier transforms infrared spectroscopy and nuclear magnetic resonance analyses show that irradiation destroys the inter- and intra-molecular hydrogen bonds of hemicellulose leading to the generation of reductive carbonyl group. Scanning electron microscope, electron paramagnetic resonance and gel permeation chromatography measurements further confirm that the damage degree of hemicellulose structure and morphology surface in dependence on irradiation doses. Thermogravimetry/differential thermogravimetry analyses indicate that the activated energy and thermal stability of irradiated hemicellulose decrease with the increasing of absorbed dose. Irradiation mediated degradation compounds analyses by ion chromatography reveal that xylose (7.64 +/- 0.92 mg g(-1)), and arabionose (3.58 +/- 0.08 mg g(-1)) and cellubiose (0.27 +/- 0.00 mg g(-1)) are observed at 1200 kGy. Amount of glucuronic acid (3.61 +/- 0.02 mg g(-1)) and galacturonic acid (7.44 +/- 0.38 mg g(-1)), which are respectively derived from glucose and galactose, are also obtained in the water soluble irradiation mediated degradation fraction. These data provide a basis support on a full utilization of hemicellulose after gamma-irradiation pretreatment.
学科主题	Environmental Sciences
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000387570500010
内容类型	期刊论文
源URL	[http://111.203.20.206/handle/2HMLN22E/105888]
专题	蔬菜花卉研究所_马铃薯研究室
作者单位	1.Hunan Acad Agr Sci, Biotechnol Res Ctr, Changsha 410125, Hunan, Peoples R China 2.Beijing Univ Chem Technol, Coll Life Sci & Technol, Beijing Key Lab Bioproc, Beijing 100029, Peoples R China 3.Hunan Agr Univ, Hunan Prov Key Lab Crop Germplasm Innovat & Utili, Changsha 410128, Hunan, Peoples R China 4.Hunan Acad Agr Sci, Hunan Inst Nucl Agr Sci & Space Breeding, Hunan Collaborat Utilizat Bot Funct Ingredients, Changsha 410125, Hunan, Peoples R China 5.Chinese Acad Agr Sci, Inst Vegetables & Flowers, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Chen, Jingping,Wang, Liuyang,Su, Xiaojun,et al. Structure, Morphology, Thermostability and Irradiation-Mediated Degradation Fractions of Hemicellulose Treated with gamma-Irradiation[J]. WASTE AND BIOMASS VALORIZATION,2016,7(6):1415-1425.
APA	Chen, Jingping.,Wang, Liuyang.,Su, Xiaojun.,Wang, Keqin.,Wu, Xiaofeng.,...&Liu, Yun.(2016).Structure, Morphology, Thermostability and Irradiation-Mediated Degradation Fractions of Hemicellulose Treated with gamma-Irradiation.WASTE AND BIOMASS VALORIZATION,7(6),1415-1425.
MLA	Chen, Jingping,et al."Structure, Morphology, Thermostability and Irradiation-Mediated Degradation Fractions of Hemicellulose Treated with gamma-Irradiation".WASTE AND BIOMASS VALORIZATION 7.6(2016):1415-1425.