FOOD SCIENCE ›› 2009, Vol. 30 ›› Issue (20 ): 186-189.doi: 10.7506/spkx1002-6300-200920037

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Microfiltration Followed by Resin Adsorption for Preparing Red Pigment from Mynica esculenta Buch-Ham

ZHANG Xiao-man,MA Yin-ha*,YANG Peng-ji,LI Yong,YAN Sheng-bo   

  1. Department of Chemical Science and Technology, Kunming University, Kunming 650031, China
  • Received:2009-08-25 Online:2009-10-15 Published:2010-12-29
  • Contact: MA Yin-ha*, E-mail:MYH5929251@163.com

Abstract:

A red pigment was extracted from Mynica esculenta Buch-Ham by combinatorial microfiltration and resin column chromatography. Meanwhile, the optimal extraction process for combinatorial microfiltration and resin column chromatography was also investigated. Results indicated that 0.2 μm of pore size in ceramic membrane, 0.10 MPa of membrane pressure, and 2500 L/h of cross-flow velocity could provide an effective separation of the red pigment. The separated red pigment was absorbed by D101-A resin when the filtrate passed through D101-A resin column. The red pigment on resin column was successfully eluted with 75% alcohol. The red pigment with high quality was obtained after condensation and drying.

Key words: combined microfiltration and resin adsorption, separation, red pigment

CLC Number: