食品科学 ›› 2008, Vol. 29 ›› Issue (3): 241-244.

• 工艺技术 • 上一篇    下一篇

羧甲基壳聚糖的制备及其在黑莓果汁澄清中的应用

 王卫东, 许时婴   

  1. 江南大学食品学院; 江南大学食品学院 江苏无锡214122; 江苏无锡214122;
  • 出版日期:2008-03-15 发布日期:2011-08-24

Preparation of Carboxymethyl Chitosan and It Application in Clarification of Blackberry Juice

 WANG  Wei-Dong, XU  Shi-Ying   

  1. School of Food Science and Technology, Jiangnan University, Wuxi 214122, China
  • Online:2008-03-15 Published:2011-08-24

摘要: 用氯乙酸对壳聚糖进行羧甲基改性,制备不同取代度的羧甲基壳聚糖。将其添加于黑莓果汁,发现黑莓果汁得到澄清。当取代度在0.46~0.86时,黑莓果汁的澄清度随取代度增加而增大;当取代度大于0.86时,澄清度反而降低。比较澄清前后果汁的主要成分,结果表明羧甲基壳聚糖可以减少果汁中蛋白质、多酚和总糖含量。

关键词: 羧甲基壳聚糖, 取代度, 黑莓, 澄清

Abstract: Carboxymethyl chitosan (N,O-CMC) was prepared by reacting chitosan with chloroacetic acid and various degrees of substitution (DS) were obtained. These N, O-CMC were added into blackberry juice and the results indicated that it could clarify the blackberry juice. The clarification of juice increased with DS values and reached maximum at a DS value of 0.86, and then decreased. The components of clarified juice indicated that CM-chitosan could reduce the contents of proteins, polyphenols and total sugars in blackberry juice.

Key words: carboxymethyl chitosan, degrees of substitution, blackberry, clarification