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China Surfactant Detergent & Cosmetics ›› 2015, Vol. 45 ›› Issue (2): 90-93.doi: 10.13218/j.cnki.csdc.2015.02.007

• Developmentandapplicatio • Previous Articles     Next Articles

Inhibitory effect of extract from lavender flower on the tyrosinase activity

LUO Bi1,2, LI Guo-zhu1,2, WANG Li-jun1,2, MENG Qing-yan1,2, LU Ya-ling1,2, LIU Wen-jie1,2   

  1. 1.College of Life Science,Tarim University,Alar,Xinjiang 843300,China;
    2.Key Laboratory of Biological Resource Protection and Utilization of Tarim Basin,Xinjiang Production & Construction Group,Alar,Xinjiang 843300,China
  • Online:2015-02-22 Published:2019-04-02

Abstract: Dried flower of lavender was used as raw material and it was extracted with 70% (volume fraction) ethanol.The extract was concentrated to concrete and dispersed in water.Then the dispersion was further extracted with petroleum ether,chloroform,ethyl acetate and n-butanol successively.The extracts from the petroleum ether,chloroform,ethyl acetate and n-butanol as well as the water phase raffinate were assayed for tyrosinase inhibitory effects using L-DOPA as substrate.Results showed that the water extract demonstrates significant inhibitory effects on tyrosinase activity.The IC50 value is 0.96 g/L.Kinetic study showed that the inhibitory mechanism of water-soluble extract is reversible,and the inhibitory type is the linear mixed-type inhibition.The inhibition constants of the free enzyme and the enzyme-substrate complex were 3.00 and 12.00 g/L,respectively.

Key words: whitening cosmetic additives, extract of lavender flower, tyrosinase, inhibition, kinetics

CLC Number: 

  • TQ658