Chemical Industry and Engineering Progree

• 生物化工 • Previous Articles     Next Articles

Extraction of dihydroquercetin from larch wood with ultrasonic-microwave alternant method

MA Chunhui,SUN Zhen,HUANG Jinming,LIU Tingting,YANG Lei,ZU Yuangang   

  1. Key Laboratory of Forest Plant Ecology,Ministry of Education,Northeast Forestry University
  • Online:2010-01-05 Published:2010-01-05

超声-微波交替法提取落叶松二氢槲皮素

马春慧,孙 震,黄金明,刘婷婷,杨 磊,祖元刚   

  1. 东北林业大学森林植物生态学教育部重点实验室

Abstract: An ultrasonic-microwave alternant method for extracting dihydroquercetin from larch wood was applied by using dihydroquercetin yield as an index. The extraction was conducted using 60% ethanol as solvent,the solid to liquid ratio of 1∶12,and soakage time of 3 hours. The microwave treatment time was 10 min,ultrasonic treatment time was 40 min respectively and the extraction was performed one time with the strongest power. The ultrasonic-microwave alternant extraction was performed by ultrasonic extraction for 40 min and then microwave extraction for 10min. The yield of dihydroquercetin with ultrasonic and microwave extraction were 0.034% and 0.074% respectively,while that of ultrasonic-microwave alternant extraction was 0.12% which is much higher than ultrasonic and microwave extraction alone. By scanning electron microscopy (SEM) observation,the ultrasonic-microwave alternant effect of substance dissolution from plant cell was the most obvious among the above-mentioned three methods.

摘要: 以二氢槲皮素的得率为指标,采用超声-微波交替法从落叶松中提取二氢槲皮素。以体积分数60%乙醇作为提取溶剂,料液比1∶12,浸润3 h,强档功率提取1次,微波提取10 min,超声提取40 min,超声-微波交替提取的条件为超声提取40 min后再微波提取10 min。二氢槲皮素单独超声和微波提取时得率分别为0.034%和0.074%,超声-微波交替提取时得率可达0.12%,明显优于单独超声或微波提取。通过扫描电子显微镜观察超声提取、微波提取和超声-微波交替提取所得的物料,超声-微波交替提取的抽提效果最为明显。

京ICP备12046843号-2;京公网安备 11010102001994号
Copyright © Chemical Industry and Engineering Progress, All Rights Reserved.
E-mail: hgjz@cip.com.cn
Powered by Beijing Magtech Co. Ltd