Determination of the Content of Total Polyphenol for Medicago sativa L.of Xinjiang by Folin-Ciocaileu
[Objective] To establish an UV method for determination of the content of total polyphenol for M. sativa of Xinjiang. [ Method] With gallic acid as CK, Folin-Ciocaileu was adopted determining the content of total polyphenol by UV at 760 nm. [ Results] The regressive equation of standard curve is Y= 91x + 0. 01l8 (r=0.9995 ). It was indicated that in the range of 0- 6 mg/ml, the liner relationship between concentration and absorbance is good. The average recovery was 102.34% , 103.94% , 102.81%. [Conclusion] The method is simple, rapid and accurate, which is a reliable method for detecting total polyphenol from M. sativa in Xinjiang.
Medicago sativa of XinjiangTotal polyphenolFolin-Ciocaileu colorimetry