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China Surfactant Detergent & Cosmetics ›› 2019, Vol. 49 ›› Issue (4): 238-243.doi: 10.3969/j.issn.1001-1803.2019.04.007

• Development and application • Previous Articles     Next Articles

Microwave-assisted extraction technology of skin-whitening agent in white Poria cocos

LI Zhi-ying,WANG Xue-han,GAO Rui-yuan()   

  1. Department of Chemistry, Xinzhou Teachers University, Xinzhou, Shanxi 034000, China
  • Received:2018-07-26 Revised:2019-03-29 Online:2019-04-22 Published:2019-04-24
  • Contact: Rui-yuan GAO E-mail:gry4341931@126.com

Abstract:

The microwave-assisted extraction of skin-whitening agent from white Poria cocos was optimized by response surface methodology. Based on single factor experiment, the extraction solvent, liquid to solid ratio, extraction time, and microwave power were selected as independent variables and the relative inhibition rate of the extractive against tyrosinase was used as the response value. The Box-Behnken design and response surface method were used to optimize the extraction technology. The optimized conditions of extraction are as follows: distilled water is used as extraction solvent, with liquid to solid ratio of 10∶1(mL∶g), extraction time of 7 min, microwave power of 520 W, and being extracted twice in one process. Under the optimized conditions, the yield of the extractive is 12.70%, and the relative inhibition rate is 31.10%, which is close to the theoretically predicted value(31.33%).

Key words: skin-whitening agent in cosmetics, white Poria cocos, microwave-assisted extraction, tyrosinase, relative inhibition rate, response surface method

CLC Number: 

  • TQ658