FOOD SCIENCE ›› 2006, Vol. 27 ›› Issue (10): 89-91.

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Effect of Polysaccharide on Concentrated Apple Juice Haze

 LI  Quan-Hong,   Li-Na   

  1. College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China
  • Online:2006-10-15 Published:2011-11-16

Abstract:  Polysaccharide from concentrated apple juice were extracted by ethanol. The polysaccharide of apple juice which was determined by high performance liquid chromatography(HPLC) is composed of glucose, fructose and arabinose. Arabinose and glucose involved in post-haze. Polysaccharide- protein were combined in a model system of pH3.7 sodium phosphate buffer. The results suggested that the amount of haze formed increased with the increase of polysaccharide and protein concentration. Polysaccharide could decrease the amount of haze formed by protein-tannic acid.

Key words:  , concentrated apple juice; polysaccharide; protein;