期刊
SEPARATION SCIENCE AND TECHNOLOGY
卷 50, 期 11, 页码 1647-1657出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/01496395.2014.975361
关键词
Pfaffia glomerata; Brazilian ginseng roots; pressurized liquid extraction; bioactive compounds; antioxidant activity; beta-ecdysone; cost of manufacturing
Pressurized liquid extraction was used to obtain beta-ecdysone-rich extracts from Brazilian ginseng (Pfaffia glomerata) roots. The effects of temperature, pressure, and solvent on extraction yield, beta-ecdysone content, and antioxidant activity were determined. Extraction yield increased with temperature up to 25% (dry basis) while the selectivity decreased. The use of Ethanol:Water (80:20 v/v) as solvent produced extracts with the highest antioxidant activity. Beta-ecdysone recovery was maximized using pure ethanol. In the first hour of extraction, approximately 70% of the total yield and 74% of the total beta-ecdysone mass is obtained. The cost of manufacturing significantly decrease as the extractor capacity increased.
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