FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (6): 82-86.

Previous Articles     Next Articles

Study on Red Pigment Extraction and Properties of Peels from Prunus persica Var.nectarina(Ait)Maxim

 JIANG  Xin-Long, JIANG  Yi-Hua   

  1. 1.Department of Applied Biological, Lishui College, Lishui 323000, China; 2.Department of Medical,Lishui College, Lishui 323000,China
  • Online:2006-06-15 Published:2011-09-22

Abstract: Properties and extractions of the red pigment in the peels of Prunus persica Var.nectarina(Ait)Maxim wereinvestigated. Results showed that good yield of pigment can be obtained by 50% C2H5OH solution of pH1 at 50℃ for 40min with the solid-liquid ratio 1:30 (g:ml). The Prunus persica Var.nectarina(Ait)Maxim red pigment is classified to anthocyanins, soluble in water, for which pH shows significant effect on the hues of pigment. The pigment has good light and heat resistance under 80℃. Metallic ions Na+, Ca2+, Zn2+, A13+ or Cu2+ have no effect on the hues of pigment, but Fe3+ or Pb2+ have severe disadvantageous effect. This kind of pigment has better enduring capability against reducing agent, but it has less resisting capability against oxidizing agent. Addition of glucose or sucrose shows no effect on the pigment.

Key words:  , Prunus persica Var.nectarina(Ait)Maxim; pigment; extraction; stability;