自然科学版 英文版
自然科学版 英文版
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中南大学学报(英文版)

Journal of Central South University

Vol. 15    No. 1    February 2008

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Microwave assisted-semi bionic extraction of lignan compounds from Fructus Forsythiae by orthogonal design
TU Qiu-yun(涂秋云)1,2, ZHOU Chun-shan(周春山)2, TANG Jian-ping(汤建萍)3

1. Neurology Department of the Third Xiangya Hospital, Central South University, Changsha 410013, China;2. School of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China;3. College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China

Abstract:Microwave assisted-semi bionic extraction (MASBE) process for lignans from Fructus Forsythiae was studied. The influences of solvent pH value, microwave power, dosage of solvent and irradiation time were investigated. Optimum extracting parameters were determined by orthogonal experiments as follows: pH value of solvent at first extraction is 5.5−6.0, that at the second extraction is 7−8; microwave power is 700 W; mass ratio of Fructus Forsythiae to water is 1׃12; irradiation time is 10 min, and extracting times is two. Under these optimal conditions, the yield of lignans reaches 0.364%. Compared with the conventional extraction methods, the MASBE process has the advantages of high extraction rate, high extraction selectivity.

 

Key words: lignans; Fructus Forsythiae; microwave assisted-semi bionic extraction; orthogonal test

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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