Welcome to Chemistry and Industry of Forest Products,

Chemistry and Industry of Forest Products ›› 2015, Vol. 35 ›› Issue (6): 101-107.doi: 10.3969/j.issn.0253-2417.2015.06.017

Previous Articles     Next Articles

Separation of Fisetin from Toxicodendron vernicifluum (Stokes) F.A.Barkl.Woods and Its Anti-tyrosinase Activity

CHEN Hong-xia1, WANG Cheng-zhang1,2, YE Jian-zhong1, ZHOU Hao1,2, TAO Ran1   

  1. 1. Institute of Chemical Industry of Forest Products, CAF;National Engineering Lab.for Biomass Chemical Utilization; Key and Open Lab.of Forest Chemical Engineering, SFA;Key Lab.of Biomass Energy and Material, Jiangsu Province; Nanjing 210042, China;
    2. Research Institute of Forestry New Technology, CAF, Beijing 100091, China
  • Received:2014-09-23 Online:2015-12-25 Published:2015-12-28

Abstract: The Toxicodendron vernicifluum (Stokes) F.A.Barkl.woods were extracted with 70 % ehanol by decompressing inner ebullition method.The compound with the purity over 70 % was obtained through the extraction by rapid isolation of extracts with ethyl acetate and middle pressure chromatography.Then the compound was separated by HPLC to obtain monomeric compound.The compound was identified as fisetin by IR, MS and NMR.The inhibitories of fisetin on the activities of monophenolase and diphenolase contained in tyrosinase were studied.The results showed that fisetin could potently inhibit the generation of dopachrome.The half inhibitory concentration of monophenolase was 69.46 mg/L.The inhibitory of fisetin against monophenolase exhibited retardation effect.Fisetin with0.524 mmol/L could extend the lag time from 1 min to 11.2 min.Fisetin functioned as a competitive inhibitor against diphenolase by Lineweaver-Burk plots.

Key words: Toxicodendron vernicifluum (Stokes)F.A.Barkl., fisetin, middle pressure chromatography, tyrosinase, inhibition

CLC Number: