文献类型：期刊文献

中文题名：微波萃取除虫菊的研究

英文题名：Study on Microwave Extraction of Pyrethrum

作者：郝金玉[1];黄若华[1];王平艳[1];邓修[2]

机构：[1]昆明理工大学环境工程与化学工程系,昆明650093;[2]华东理工大学化学工程系,上海200237

年份：2001

卷号：40

期号：8

起止页码：15

中文期刊名：农药

外文期刊名：Agrochemicals

收录：CSTPCD;;北大核心:【北大核心2000】；

基金：云南省自然科学基金资助项目(98B039M)

语种：中文

中文关键词：微波萃取;除虫菊;除虫菊酯;杀虫剂

外文关键词：microwave extraction, pyrethrum, pyrethrin

摘要：本研究使用经改造的家用微波炉作为主要设备，对微波萃取除虫菊干花做了 Ｌ_9(3～４)正交实验。考察了四个因素：微波辐射时间、微波功率、溶剂用量、洗涤滤饼的 溶剂量对三个指标：提取率、溶剂回收率、除虫菊酯总含量的影响。实验结果表明： 辐射时间２００s、微波功率 ７５０Ｗ、溶剂用量２４０ｍｌ、洗涤滤饼的溶剂量 ２０ｍｌ可得到最高 的提取率；辐射时间２００ｓ、微波功率７５０ｗ、溶剂用量２４０ｍｌ、洗涤滤饼的溶剂量３０ｍｌ 可得到最高的溶剂回收率；辐射时间２００ｓ、微波功率８５０Ｗ、溶剂用量240ｍｌ、洗涤滤 饼的溶剂量３０ｍｌ可得到最高的除虫菊酯总含量。综合考虑提取率、溶剂回收率和除虫 菊酯总含量，最佳组合为辐射时间２００ｓ、微波功率７５０ｗ、溶剂用量２４０ｍｌ、洗涤滤饼 的溶剂量３０ｍｌ。
Microwave extraction of the dry flower of pyrethrum, using a reconstructed home microwave oven as main equipment, is studied in this paper. The effects of radiation time, microwave power, volume of solvent in extraction and volume of solvent in washing cake on yield, solvent recovery and the content of pyrethrins is discussed in orthogonal experiments. Radiation time 200s, microwave power 750w, volume of solvent in extraction240ml and volume of solvent in washing cake 20ml give the highest yield. Radiation time 200s, microwave power 750w, volume of solvent in extraction240ml and volume of solvent in washing cake 30ml give the highest solvent recovery. Radiation time 200s, microwave power 850w, volume of solvent in extraction240ml and volume of solvent in washing cake 30ml give the highest content of pyrethrins. Data illustrate that radiation time 200s, microwave power 750w, volume of solvent in extraction240ml and volume of solvent in washing cake 30ml give the best results after considering yields, solvent recovery and content of pyrethrins.