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Citation: FU Yu-Jie, ZHAO Wen-Hao, HOU Chun-Lian, LIU Wei, SHI Quan, ZU Yuan-Gang. Vacuum-Cavitated Technology for Glycyrrhizic Acid Extraction[J]. Chinese Journal of Applied Chemistry, ;2005, 22(12): 1369-1371. shu

Vacuum-Cavitated Technology for Glycyrrhizic Acid Extraction

1.
Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040

Received Date: 26 December 2004
Available Online: 25 April 2005
Fund Project: 哈尔滨市科技攻关计划项目(2003AA3CS112) (2003AA3CS112)哈尔滨市科技攻关计划项目(2004AA3CS172-2) (2004AA3CS172-2)

This paper presents a vacuum-cavitated extraction method for glycyrrhizic acid(GA) extraction from supercritical extraction residue.The optimum extraction conditions are as follows:0.3% ammonia solution as the solvent,the ratio of solvent to solid 10:1(mL/g),vacuum-cavitated time 15 min,and the crude extract yeild is 30.3%,in which the content of GA is 6.6%,so the GA extraction yeild is 2.0%.There are three extraction methods:soxhlet,ultrasonic wave,and vacuum-cavitated extraction methods.The results show that the extraction yield of GA by vacuum-cavitated extraction method is 1.6 times that by soxhlet extraction method and 1.2 times that by ultrasonic.At the same time,the vacuum-cavitated extraction method shows many advantages,including lower temperature,less solvent,shorter extraction time,higher extraction yield,and higher GA content in the crude extract.The vacuum-cavitated extraction method is new and highly efficient,which can be utilized in the pharmaceutical industry.
- vacuum-cavitated,
- glycyrrhiza uralensis fisch,
- glycyrrhizic acid,
- extraction
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