Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (12): 105-109,119.doi: 10.3969/j.issn.1000-565X.2010.12.020

• Food Science & Technology • Previous Articles     Next Articles

Coupled Regeneration of Decolourization and Decalcification Resin in Sugar Industry and Reuse of Regenerated Waste Liquid

Zhu Si-ming  Fu Xiong  Yu Shu-juan  Zhu Liang   

  1. Research Institute of Light Industry and Chemical Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2010-04-07 Revised:2010-06-01 Online:2010-12-25 Published:2010-12-25
  • Contact: 于淑娟（1955-），女，教授，博士生导师，主要从事制糖工程研究 E-mail:lfshjyu@scut．edu．cn
  • About author:朱思明（1976-），男，博士，讲师，主要从事制糖新技术研究．E—mail：ffsmzhu@scut．edu．cn
  • Supported by:

    国家自然科学基金资助项目（20776052）; 中国博士后基金资助项目（20090450755）; 科技部科技人员服务企业行动项目（2009GJG41011）; 广东省科技计划项目（2008A080403009）; 华南理工大学轻工与食品国家实验教学示范中心建设项目（X2QS-Y9100030）

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Abstract:

The treatment of regenerated waste liquid is a key to the application of ion exchange resin to the purification of sugar juice.In order to reuse the regenerated waste liquid,the regeneration of decolourization and decalcification resin in sugar industry was coupled by regenerating the decalcification resin using the waste liquid from regenerated decolourization resin,and the antioxidant activity and functional components of the coupled regeneration waste liquid were determined.The results indicate that（1） the complexation of Ca 2＋ with pigment benefits the Ca 2＋ desorption from the resin;（2） by regenerating 60mL of decalcification resin BK001 with 300mL of alkaline waste liquid in a regenerating procedure of decolourization resin（D201×7）,56.7g of calcium-rich pigment with antioxidant activity can be obtained,with a regeneration percentage of decalcification resin of 95.4%;（3） the contents of Na＋,Ca 2＋ and amino acids in the calcium-rich pigment are respectively 260.00,29.29 and 29.80mg/g;and（4） the absorbance of the aqueous pigment solution without NaCl meets the caramel standard presented by GB 8817—2001.

Key words: sugar-making, decolourization, decalcification, ion exchange resin, coupled regeneration