HE Wen-jing1, ZHANG Fan2, TIAN Shu-ge 1, et al. Determination of the Content of Total Polyphenol for Hops by Folin-Ciocaileu[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(5): 58-60.
HE Wen-jing1, ZHANG Fan2, TIAN Shu-ge 1, et al. Determination of the Content of Total Polyphenol for Hops by Folin-Ciocaileu[J]. Chinese journal of experimental traditional medical formulae, 2011, 17(5): 58-60. DOI: 10.13422/j.cnki.syfjx.2011.05.005.
Determination of the Content of Total Polyphenol for Hops by Folin-Ciocaileu
Objective:To estabilsh an UV method for determination of the content of total polyphenol for hops.Method:Folin-Ciocaileu was adopted determining the content of total polyphenol by UV at 765 nm.Result:The total polyphenol was linear in the range of 0.049-0.595 g·L-1 with the relative standard deviation r = 0.999 4.The average recovery was 99.7%
101.7%
98.3%.Conclusion:The method is accurate and simple with good reproducibility
and can control the quailty of this prepararion effectively.