食品科学 ›› 2008, Vol. 29 ›› Issue (2): 199-201.

• 工艺技术 • 上一篇    下一篇

天然沸石-壳聚糖对苹果汁的澄清作用

 李增新, 李俊, 韩菁, 张道来, 孟韵   

  1. 青岛大学师范学院化学系; 青岛大学师范学院化学系 山东青岛266071; 山东青岛266071;
  • 出版日期:2008-02-15 发布日期:2011-08-24

Pelleting Natural Zeolite-Chitosan for Apple Juice Clarification

 LI  Zeng-Xin, LI  Jun, HAN  Jing, ZHANG  Dao-Lai, MENG  Yun   

  1. Department of Chemistry, Normal College, Qingdao University, Qingdao 266071, China
  • Online:2008-02-15 Published:2011-08-24

摘要: 将80目天然沸石与90%脱乙酰度壳聚糖的0.5%醋酸溶液按1:1.2质量比混合制成沸石-壳聚糖颗粒,用于苹果汁澄清处理。研究了不同壳聚糖脱乙酰度、沸石-壳聚糖添加量、果汁pH值、作用温度、时间等对果汁澄清效果的影响。确定最佳工艺参数是:澄清剂添加量8g/L,作用时间4min,作用温度为45℃左右。澄清处理后果汁的透光率80%以上,澄清效果较好。产生的滤泥用作动物饲料添加剂,对环境无污染。

关键词: 果汁, 壳聚糖, 天然沸石, 澄清

Abstract: A solid adsorbent pollet was made from natural zeolite and chitosan to be used for clarification of fruit juices. 80 mesh natural zeolite was added in chitosan slurry of 90% degree of deacetylation to prepare adsorbent pellets with mass ratio 1:1.2. The optimal operation conditions are absorbent amount 8 g/L and agitation time 4 min at 45 ℃ with transparence 80%. The filtrate slurry can be used as feed additives without environmental pollution problem.

Key words: fruit juices, chitosan, natural zeolite, clarification