FOOD SCIENCE ›› 2004, Vol. 25 ›› Issue (3): 139-142.

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Study on Determination Methods of Flavonoids from Corn Silk

 REN  Shun-Cheng, DING  Xiao-Lin   

  1. School of Food Science and Technology, Southern Yangtze University
  • Online:2004-03-15 Published:2011-10-24

Abstract: Several methods were selected to determine the content of flavonoids in corn silk, while satisfying wave length wasdecided by means of UV-visible photometer curves of flavonoids and its monomer in corn silk, as well as rutin at the range of200600nm after reacting with different regents , and comparison of experimental results were carried out. The results showedthat Al(NO3)3 colorimetry is not suitable to determine content of flavonoids in corn silk. While AlCl3 colorimetry is a simple,accuratemethod which can be used to determine content of corn silk flaovonoids with rutin as reference substance.

Key words: corn silk, flavonoids, determination