FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (8): 383-385.

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Study on Ultrasonic Extraction Technology of Yellow Pigment from Phellodendron chinense Schneid.Bark

 DING  Xu-Guang, HOU  Dong-Yan, GUAN  Chong-Xin, LIU  Xiao-Yuan   

  1. Department of Chemistry,Anshan Normal University,Anshan 114007,China
  • Online:2008-08-15 Published:2011-08-26

Abstract: The ultrasonic extraction method was used for extracting yellow pigment from Phellodendron chinense Schneid. bark. The yellow pigment has the maximum absorption at 335-nm wavelength. The optimum extraction solvent is alcohol. The optimum extraction conditions are as follows:concentration of solvent 60%,pH 3 to 7 and extraction temperature 0 ℃. The pigment is quite stable,lightfast,heatproof and hardly affected by common food additives as well as Na+,Cu2+,Mg2+ and Ca2+.

Key words: Phellodendron chinense Schneid., yellow pigment, ultrasonic extraction