FOOD SCIENCE ›› 2005, Vol. 26 ›› Issue (8): 202-204.

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Extracting Study on Red Pigment of Dianthus caryophyllus

 ZHAO  Yan-Jie   

  1. Agriforestry College,Linyi Normal University
  • Online:2005-08-15 Published:2011-09-19

Abstract: This articles studied extracting and absorbing the red pigment of Dianthus caryophyllus with different resins. The four kinds of resins were compared. The results showed that AB-8 resin had the best performance of absorbing the red pigment of Dianthus caryophyllus. In the course of desorbing the absorbed pigment 50% ethanol was optimal, AB-8 resin was selected during the experiment. After repeating 20 times, the absorption factor was only at a loss of 1.95%. The pigment could dissolve in polar solvent. Under the acidic condition, the pigment was fresh red and had a better resistance to light and hot.

Key words: Dianthus caryophyllus, pigment, extracting, resin