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| 机械研磨降解壳聚糖的工艺研究 | |
| 引用本文： | 蒋林斌,刘大胜,姚评佳,魏远安,何熙璞,郑德森.机械研磨降解壳聚糖的工艺研究[J].食品与发酵工业,2007,33(2):59-62. |
| 作者姓名： | 蒋林斌 刘大胜 姚评佳 魏远安 何熙璞 郑德森 |
| 作者单位： | 1. 广西大学化学化工学院,广西南宁,530004;广西亚热带生物资源保护利用重点实验室,广西南宁,530005 2. 广西亚热带生物资源保护利用重点实验室,广西南宁,530005;广西大学糖业工程研究中心,广西南宁,530005 3. 广西大学生命科学院,广西南宁,530005;广西亚热带生物资源保护利用重点实验室,广西南宁,530005 4. 广西大学化学化工学院,广西南宁,530004 |
| 基金项目： | 国家自然科学基金;广西教育厅科研项目;广西大学校科研和教改项目 |
| 摘 要： | 研究了用搅拌球磨机机械活化降解壳聚糖的工艺和用X射线衍射仪(XRD)、红外光谱(IR)、脱乙酰度(D.D.)表征机械活化壳聚糖的结构。分别考察了机械活化时间、温度及搅拌速度对壳聚糖溶解度和分子质量的影响。实验结果表明,机械力化学作用对壳聚糖的降解有明显影响,其中搅拌速度对壳聚糖降解的影响最明显,其次是搅拌时间,影响最小的是温度;机械力化学作用使壳聚糖颗粒结晶结构受到破坏,其结构从晶态变成非晶态。 |
| 关 键 词： | 壳聚糖 机械活化 降解 溶解度 |
| 修稿时间： | 10 11 2006 12:00AM |
Study on Degradative Technology of Chitosan by Mechanical Activation |
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| Jiang Linbin,Liu Dasheng,Yao Pingjia,Wei Yuanan,He Xipu,Zheng Desen.Study on Degradative Technology of Chitosan by Mechanical Activation[J].Food and Fermentation Industries,2007,33(2):59-62. | |
| Authors: | Jiang Linbin Liu Dasheng Yao Pingjia Wei Yuanan He Xipu Zheng Desen |
| Abstract: | With a stirring-type ball,XRD,IR and D.D.,the degradative technology and structure of chitosan in the process of mechanical activation were investigated.The effects of different mechanical activating time,temperature and stirring speed on solubility and molecular weight of chitosan had been examined respectively.The results indicate that the mechanochemical process causes remarkable effect on degradation of chitosan,among which stirring speed is the most obvious on effect of degradation of chitosan.Stirring time is little-lower and stirring temperature is the lowest.The crystal structure of chitosan is destroyed by mechanochemical process and changed from polycrystalline to amorphous state. |
| Keywords: | chitosan mechanical activation degradation solubility |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |