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林产化学与工业 ›› 2004, Vol. 24 ›› Issue (2): 80-82.

• 研究报告 • 上一篇    下一篇

应用微波技术提取紫荆花色素的研究

黎彧1, 高虹1,2, 欧步青1   

  1. 1. 广东轻工职业技术学院 轻化系, 广东 广州 510300;2. 广东工业大学 轻工化工学院, 广东 广州 510090
  • 收稿日期:2003-04-28 修回日期:1900-01-01 出版日期:2004-06-30 发布日期:2004-06-30

STUDY ON MICROWAVE EXTRACTION OF PIGMENT FROM CERCIS CHINENSIS BUNGE

LI Yu1, GAO Hong1,2, OU Bu-qing1   

  1. 1. Department of Chemical Engineering, Guangdong Industry Technical College, Guangzhou 510300, China;2. College of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510090, China
  • Received:2003-04-28 Revised:1900-01-01 Online:2004-06-30 Published:2004-06-30

摘要: 研究了应用微波技术从植物紫荆(Cercis chinensis Bunge)的花中提取色素的新工艺并确定了最佳工艺条件:原料0.2000g紫荆干花,提取剂95%乙醇,料液比1:50(g:mL),微波功率648W,提取时间30s,提取次数2次。最佳工艺条件下色素的提取率为92.1%,产率为9.48%,色价E(1%,549nm)为22.3。与溶剂浸提法相比,微波法提取紫荆花色素的每次提取时间由24h减小为30s,提取率从90.2%增加到92.1%。

关键词: 微波提取, 紫荆花, 色素

Abstract: As a new method of extraction,microwave was used to extract pigment from flowers of Cercis chinensis Bunge.The extraction processes were investigated to obtain the optimal conditions as follows:dry flower 0.200 0 g,(solvent) 95% alcohol,ratio of raw material to solvent 1:50(g:mL),microwave power 648 W,extraction time 30 s,twice of extraction.Results are:extraction rate 92.1%,yield 9.48% and absorbance E(1%,549 nm) 53.3.Compared with normal solvent extraction,microwave extraction time could be reduced from 24 h to 30 s,and the extraction yield (increase) from 90.2% to 92.1%.

Key words: microwave extraction, Cercis chinensis Bunge, pigment

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