Microwave assisted-semi bionic extraction of lignan compounds from Fructus Forsythiae by orthogonal design

Autor: Chun-shan Zhou, Qiu-yun Tu, Jian-ping Tang
Rok vydání: 2008
Předmět:
Zdroj: Journal of Central South University of Technology. 15:59-63
ISSN: 1993-0666
1005-9784
DOI: 10.1007/s11771-008-0013-z
Popis: 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.
Databáze: OpenAIRE