FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (10): 497-499.

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Determination of Oleanolic Acid and Ursolic Acid in Different Species of Fructus chaenomeles by RP-HPLC

 WANG  Dai-Jie, WANG  Xiao, GENG  Yan-Ling, LI  Sheng-Bo   

  1. 1. Shandong Analysis and Test Center,Jinan 250014,China; 2. Shandong Yate Eco-tech Co. Ltd.,Linyi 266071,China
  • Online:2008-10-15 Published:2011-12-08

Abstract: A method for determination of oleanolic acid and ursolic acid in fresh Fructus chaenomeles was established. The determination by RP-HPLC was carried out on Agilent C18(4.6 mm×250 mm,5μm) column. The mobile phase consisted of methanol-0.5% HAc water (85:15) with the flow rate of 0.6 ml/min. The column remained at 35℃ and the detection wavelength was at 210 nm.The calibration curve is linear in the range of 0.162~6.48μg for oleanolic acid (R2= 0.9997),with the regression equation being y= 512802x+19211. The average recovery is 100.2% (RSD=0.9%,n=6). The calibration curve was linear in the range of 0.391~15.62μg for ursolic acid (R2= 0.9998),with the regression equation being y = 50865x-5090.4. The average recovery was 100.0% (RSD=1.1 %,n=6). These conclusions showed that this method is simple,accurate and reproducible for quantitative analysis of oleanolic acid and ursolic acid in fresh Fructus chaenomeles.

Key words:  , Fructus chaenomele; soleanolic acid; ursolic acid; RP-HPLC;