| 冻融循环制备天然水溶性甲壳素及其特性 |
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| 引用本文： | 刘廷国,查萍萍,杨凌霄,李斌.冻融循环制备天然水溶性甲壳素及其特性[J].华中科技大学学报(自然科学版),2011(1):70-74. |
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| 作者姓名： | 刘廷国 查萍萍 杨凌霄 李斌 |
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| 作者单位： | 华中农业大学食品科技学院;池州学院化学与食品科学系;池州市食品药品检验所; |
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| 基金项目： | 国家高技术研究发展计划资助项目(2007AA10Z310); 2011年度安徽高等学校省级自然科学研究一般项目; 池州学院化学材料与工程省级实验中心建设资助项目 |
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| 摘 要： | 利用冻融循环处理制备甲壳素均相溶液,在温和的均相条件下脱乙酰化制备了不同脱乙酰度的天然水溶性甲壳素,并测定了样品的水溶性和脱乙酰度.利用X-射线衍射(XRD)、傅里叶红外光谱(FT-IR)和差示扫描量热法(DSC)研究了样品的结晶指数和氢键相互作用与样品水溶性和脱乙酰度之间的关系.结果表明:样品的水溶性与结晶结构和结晶度关系密切;样品与商品壳聚糖没有本质差异,是一种真正的天然水溶性甲壳素.
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| 关 键 词： | 甲壳素 凝聚态结构 水溶性 均相脱乙酰 冻融循环 |
Preparation and characterization of natural water-soluble-chitin using freezing-thawing-cylic treatment |
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| Liu Tingguo, Zha Pingping Yang Lingxiao Li Bin.Preparation and characterization of natural water-soluble-chitin using freezing-thawing-cylic treatment[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2011(1):70-74. |
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| Authors: | Liu Tingguo Zha Pingping Yang Lingxiao Li Bin |
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| Institution: | Liu Tingguo1,2 Zha Pingping3 Yang Lingxiao1 Li Bin1(1 College of Food Science and Technology,Huazhong Agricultural University,Wuhan 430070,China,2 Department of Chemistry and Food Science,Chizhou University,Chizhou 247100,Anhui China,3 Chizhou Institute for Food and Drug Control,Chizhou 247000,Anhui China) |
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| Abstract: | Partially deacetylated chitin with different degree of deacetylation(DDA) were prepared by alkaline treatment under homogeneous conditions using freezing-thawing-cyclic treatment.The water solubility(WS) and DDA was determined and the influence of DDA,crystalline index(Xc) and the hydrogen bonding interaction were investigated by Fourier transform infared spectroscory(FT-IR),differential scanning calorimenty(DSC) and X-ray diffraction(XRD).There was a close relationship between solubility and crystal struct... |
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| Keywords: | chitin condensed state structure water-solublility homogeneous deacetylation freezing-thawing-cylic treatment |
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