活性炭负载壳聚糖对苹果汁的澄清效果研究  

Study on Clarification of Apple Juice with Activated Carbon-attached Chitosan

作　　者：章斌[1] 罗志[1] 凡芳华[1] 

机构地区：[1]韩山师范学院生物系,广东潮州521041

出　　处：《食品研究与开发》2013年第17期15-19,共5页Food Research and Development

摘　　要：以透光率为指标,以壳聚糖澄清和活性炭澄清为对照,探讨活性炭负载壳聚糖澄清剂在不同添加量、温度、时间和pH条件下对苹量汁的澄清效果影响,并采用Box-Behnken中心组合设计法进行澄清工艺条件的响应面优化。试验结果表明:经活性炭负载的壳聚糖澄清剂对苹果汁有较好的澄清效果,且明显优于对照组;建立的响应面模型能较好地预测透光率随澄清条件的变化规律,且在最优澄清条件负载澄清剂用量12 g,澄清时间9.6 min,澄清温度55℃,pH 2.56下的透光率为96.47%。Taking clarity of juice as main index, compared with chitosan clarifying and activated carbon clarifying method, influence of clarification effects on apple juice by activated carbon-attached chitosan agent under conditions of different adding amount, clarifying temperature, clarifying time and pH was explored and response surface optimization of Box-Behnken center combination design method for the clarification was studied in this paper. Results showed that clarifying agent of chitosan loaded with activated carbon has preferable clarification effects on apple juice, and obviously better than the contrast group, meanwhile, the response surface model can well predict light transmittance with the change of clarification conditions. Under the most optimal clarify conditions of chitosan dosage 12 g, clarifying temperature 55 C, clarifying time 9.6 rain, pH 2.56, light transmittance rate reaches 96.47 %.

关 键 词：壳聚糖 活性炭 苹果汁 澄清 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程]