FOOD SCIENCE ›› 2008, Vol. 29 ›› Issue (3): 229-232.

Previous Articles     Next Articles

Determination and Purification of Polysaccharides in Fruit of Quince

 JING  Si-Qun, GUAN  Yan-Xin   

  1. 1.College of Life Sciences and Technology, Xinjiang University, Urumqi 830046, China; 2.Institute of Testing, Xingiang Bazhou Qulity Technology Supervision Bureau, Bazhou 841000, China
  • Online:2008-03-15 Published:2011-08-24

Abstract: Polysaccharides from fruit of quince was obtained by hotwater extraction and ethanol precipitation. The content of polysaccharide was determined by spectrophotometry.The content of polysaccharide assayed by phenol-vitriolic colorimetry at 490nm,was 67.28% with3.08% of RSD (n=4). Recovery value for the polysaccharides assayed was 101.2%. The concentrated polysaccharides was purified by polyamide column and the results showed that decolorization was significant.

Key words: quince polysaccharide, phenol-vitriolic, determination, purification