| 超临界CO2萃取毛竹叶中的叶绿素 |
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| 引用本文： | 吴浩,金君素,张泽廷,王戈,陆方,李雪.超临界CO2萃取毛竹叶中的叶绿素[J].北京化工大学学报(自然科学版),2007,34(1):92-94. |
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| 作者姓名： | 吴浩 金君素 张泽廷 王戈 陆方 李雪 |
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| 作者单位： | 1北京化工大学化学工程学院， 北京100029; 2国际竹藤网络中心， 北京100102
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| 基金项目： | 国际竹藤网络中心青年科技发展基金 |
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| 摘 要： | 以毛竹叶为原料，利用超临界CO2萃取技术从毛竹叶中萃取叶绿素。主要考察了萃取压力、萃取温度、萃取时间、CO2流量、夹带剂（无水乙醇）用量、原料粉碎度对叶绿素收率的影响，得到本研究范围内最优实验条件：萃取温度323K、萃取压力27MPa，夹带剂（无水乙醇）体积分数10%、CO2流速为60g/h、原料粉碎粒度为60目、萃取时间80min，在此条件下，叶绿素收率为3.53‰，且重复性较好。
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| 关 键 词： | 超临界CO2萃取 毛竹叶 叶绿素 超临界CO2萃取 毛竹叶 叶绿素 |
| 收稿时间： | 2006-07-18 |
| 修稿时间： | 2006-07-18 |
Extraction of chlorophyll from phyllostachys pubescens foliage with supercritical carbon dioxide |
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| WU Hao,JIN JunSu,ZHANG ZeTing,WANG Ge,LU Fang,LI Xue.Extraction of chlorophyll from phyllostachys pubescens foliage with supercritical carbon dioxide[J].Journal of Beijing University of Chemical Technology,2007,34(1):92-94. |
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| Authors: | WU Hao JIN JunSu ZHANG ZeTing WANG Ge LU Fang LI Xue |
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| Institution: | 1 College of Chemical Engineering, Beijing University of Chemical Technology, Beijing 100029; 2 International Centre for Bamboo and Rattan, Beijing 100102, China |
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| Abstract: | The extraction of chlorophyll from phyllostachys pubescens foliage has been studied using supercritical CO2 extraction trchnology. The influence of extraction pressure, temperature, time, flow rate of CO2, amount of entrainer (anhydrousethanol), and particle size on the yield of chlorophyll were investigated. The results showed that the optimum conditions were a particle size of 60 mesh, temperature 323K, pressure of 27MPa, CO2 flow rate of 60g/h, time of 80min, with 10% entrainer. The yield of chlorophyll under these conditions was 3.535%, and the method was highly reproducible. |
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| Keywords: | supercritical CO_2 extraction phyllostachys pubescens foliage chlorophyll |
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