高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (9): 1623.

• 研究论文 • 上一篇    下一篇

微波辅助萃取新鲜芦荟叶中芦荟甙的研究

杨屹1, 侯翔燕1, 郭振库2   

  1. 1. 北京化工大学理学院,北京100029;
    2. 北京雷明科技有限公司,北京100022
  • 收稿日期:2004-12-03 出版日期:2005-09-10 发布日期:2005-09-10

Microwave-assisted Extraction of Aloin from Fresh Aloe Leaves

YANG Yi1, HOU Xiang-Yan1, GUO Zhen-Ku2   

  1. 1. School of Science, Beijing University of Chemical Technology, Beijing 100029, China;
    2. Beijng Leiming Technology Co., Ltd., Beijing 100022, China
  • Received:2004-12-03 Online:2005-09-10 Published:2005-09-10

PDF (PC)

被引次数

140

摘要： 应用密闭微波萃取装置对芦荟中的有效成分芦荟甙进行了微波萃取研究,并利用透射电子显微镜对微波萃取机理进行了初步探讨.讨论了不同萃取剂、溶剂浓度、萃取时间和微波功率等对提取率的影响.在萃取剂为乙醇-水体系,溶剂(乙醇)体积分数为70%、萃取时间为4min及微波功率为340W的条件下,萃取效果最佳.与索氏提取及超声波萃取法相比,本法具有萃取速度快、提取率高及溶剂用量少等特点.

关键词: 微波辅助萃取, 芦荟, 芦荟甙, 高效液相色谱

Abstract: A detail procedure for extracting aloin from fresh aloe leaves was developed by using an obturated microwave-assisted extraction (MAE) device with a pressure controlling unit. The mechanism of the microwave-assisted extraction was studied by transmission electronic micrography. The effects of the solvent sort, solvent, concentration, radiation time and microwave power were discussed in orthogonal experiments. The results show that the optimized extraction parameters were ethanol-water(volume ratio is 70∶30), radiation time 4 min, microwave power 340 W. Compared with Soxhlet extraction and ultrosonic extraction, microwave extraction is a rapid method with a higher yield and less solvent consumption.

Key words: Microwave-assisted extraction, Aloe, Aloin, HPLC

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