Food and Fermentation Industries >

2012 , Vol. 38 >Issue 12: 169 - 174

DOI: https://doi.org/10.13995/j.cnki.11-1802/ts.2012.12.039

Food and Fermentation Industries

Optimization of Red Pigments Extraction from jujube Peel(Ziziphus jujube Mill.) Under Reduced Pressure

  • You Feng ,
  • Huang Lin-xin ,
  • Zhang Cai-hong ,
  • Xie Pu-jun ,
  • Zhang Yao-lei
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Online published: 2012-12-25

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Abstract

The extraction conditions of red pigments under reduced pressure from jujube peel were investigated and further optimized.The effects of the solvent concentration,liquid/solid ratio,extraction time,and extraction temperature and extraction pressure on the pigments' yield were investigated by Single-Factor experiment.The results showed that the conditions for maximum pigment yields per gram jujube peel were : 40ml aqueous solvent with 1.6% alkaline in 90℃ water bath for 50 minutes assisted by reduced pressure at 0.005 MPa.The comparison among reduced pressure,ordinary pressure and ultrasonic-assisted extraction showed that extraction under reduced pressure gained the highest color value of 21.70.

Key words： Ziziphus jujube; natural red dye/pigment; reduced pressure assisted extraction

Cite this article

You Feng , Huang Lin-xin , Zhang Cai-hong , Xie Pu-jun , Zhang Yao-lei . Optimization of Red Pigments Extraction from jujube Peel(Ziziphus jujube Mill.) Under Reduced Pressure[J]. Food and Fermentation Industries, 2012 , 38(12) : 169 -174 . DOI: 10.13995/j.cnki.11-1802/ts.2012.12.039

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