| 常压和加压浸渍法制备壳聚糖性能对比 |
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| 引用本文： | 张爱丽,柳玉肖,周集体. 常压和加压浸渍法制备壳聚糖性能对比[J]. 化工进展, 2007, 26(4): 546-549 |
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| 作者姓名： | 张爱丽 柳玉肖 周集体 |
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| 作者单位： | 大连理工大学环境与生命学院,辽宁,大连,116023;大连理工大学环境与生命学院,辽宁,大连,116023;大连理工大学环境与生命学院,辽宁,大连,116023 |
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| 摘 要： | 研究了常压和加压条件下碱液浓度和反应时间对壳聚糖性能的影响。与传统工艺相比,在不改变壳聚糖化学结构、晶型结构的条件下,压力浸渍法反应时间由6 h降到1 h,耗碱量降低了65%。结果表明,压力浸渍法可得到更高脱乙酰度和更高分子量的壳聚糖产品。
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| 关 键 词： | 壳聚糖 制备工艺 脱乙酰度 |
| 文章编号： | 1000-6613（2007）04-0546-04 |
| 收稿时间： | 2006-09-11 |
| 修稿时间： | 2006-10-24 |
Comparison of chitosan properties prepared by immersion under atmospheric and pressurized conditions |
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| ZHANG Aili,LIU Yuxiao,ZHOU Jiti. Comparison of chitosan properties prepared by immersion under atmospheric and pressurized conditions[J]. Chemical Industry and Engineering Progress, 2007, 26(4): 546-549 |
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| Authors: | ZHANG Aili LIU Yuxiao ZHOU Jiti |
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| Affiliation: | Institute of Enviromental Science and Engineering, Dalian University of Technology, Dalian 116023, Liaoning, China |
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| Abstract: | The influence of NaOH concentration and reaction time on chitosan properties under pressurized condition was compared with that under atmospheric pressure condition.Compared with traditional methods,immersion under pressurized condition decreased reaction time from 6h to 1h,and the consumption of NaOH was reduced by 65% without change in chemical and crystal structures of chitosan.The result showed that,immersion under pressurized condition could prepare chitosan with a higher degree of deacetylation and higher molecular weight. |
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| Keywords: | chitosan preparation process degree of deacetylation |
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