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Extraction of Genistein and Formononetin from Sophoraflavescens Aiton using Ultrasonic wave  

Kim, Young Sik (Department of Chemical Engineering, Kangwon National University)
Lee, Kwang Jin (Department of Chemical Engineering, Kangwon National University)
Publication Information
Korean Chemical Engineering Research / v.47, no.2, 2009 , pp. 258-261 More about this Journal
Abstract
In this work, we the ettect on extraction amounts and general composition content of phytoestrogen genistein and formononetin extracted from Sophoraflavescens Aiton by various ultrasonic waves(35, 72, and 170 KHz) and extraction time(30, and 60 min) were compared using extraction solvent water 100%. The pretreatment step was composed of ultrasonic waves extraction, filtration, concentration, and membrane filtration. The extracted sample was analyzed by reversed-phase high performance liquid chromatography(RP-HPLC). And the mobile phase applied was linearly changed with A/B of 80/20~65/35 vol% for 60 min(A water/acetic acid, 99.9/0.1 vol%, B acetonitrile/acetic acid, 99.9/0.1 vol%). The experimental results, general composition carbohydrate(0.255 to 0.413%) excepts, other ingredients was confirmed almost similarly. Also, The highest yield of extraction amount 3.17g was obtained by ultrasonic waves with a frequency of 170 KHz and an extraction time of 60 min. This work offers would be useful for chemical and biological studies of natural plants and its products.
Keywords
Extraction; Purification; Phytoestrogen; Sophoraflavescens Aiton; Ultrasound;
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Times Cited By KSCI : 3  (Citation Analysis)
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