水溶性壳聚糖澄清蜜瓜汁工艺优化探究  

Optimization of Clarification Process of Melon Juice with Water Soluble Chitosan

作　　者：李欣 王明瑞[1,2] 侯彦喜 焦婵[1,3] LI Xin;WANG Mingrui;HOU Yanxi;JIAO Chan(College of Materials and Chemical Engineering,Kaifeng University,Kaifeng 475004,Henan;Kaifeng Fermented Food Engineering Technology Research Center,Kaifeng 475004,Henan;Kaifeng Key Laboratory of Fermented Food,Kaifeng 475004,Henan)

机构地区：[1]开封大学材料与化学工程学院,河南开封475004 [2]开封市发酵食品工程技术研究中心,河南开封475004 [3]开封市发酵食品重点实验室,河南开封475004

出　　处：《开封大学学报》2024年第1期92-96,共5页Journal of Kaifeng University

基　　金：开封市科技发展计划项目(2002005)。

摘　　要：优化水溶性壳聚糖澄清蜜瓜汁工艺。以蜜瓜汁透光率为指标,通过单因素与正交试验,研究壳聚糖添加量、起始pH值、澄清温度、澄清时间对蜜瓜汁透光率的影响。结果表明:在壳聚糖添加量0.04g/100mL、起始pH值6.0、澄清温度30℃、澄清时间30 min时,蜜瓜汁透光率可达98.23%。壳聚糖处理蜜瓜汁前后总糖、还原糖、可溶性固形物、VC等成分含量均无显著变化。壳聚糖能够有效清除蜜瓜汁果胶等大分子物质以获得理想的澄清效果,该工艺具有操作简单、生产成本低和生产周期短等特点,具有良好的应用前景。To optimize the clarification process of honeydew melon juice with water-soluble chitosan.With the light transmittance of honeydew juice as an index,the effects of chitosan addition,initial pH value,clarification temperature and clarification time on the light transmittance of honeydew juice were studied by single factor and orthogonal experiments.The results showed that the light transmittance of honeydew juice could reach 98.23%when adding 0.04g/100mL chitosan,initial pH 6.0,clarification temperature 30℃ and clarification time 30 min.The contents of total sugar,reducing sugar,soluble solids and VC in honeydew juice treated with chitosan had no significant changes.Chitosan can effectively remove macromolecular substances such as pectin from honeydew melon juice to obtain ideal clarification effect.This process has the characteristics of simple operation,low production cost and short production cycle,and has good application prospects.

关 键 词：壳聚糖 蜜瓜汁 澄清 透光率 

分 类 号：TS255.36[轻工技术与工程—农产品加工及贮藏工程]