高色值脱农残浓缩苹果汁的生产工艺  

The production technology of high color value and pesticide free apple juice concentrate

作　　者：夏秋敏[1] 王小宏 孟永宏[1] 刘颖平 贺小化[1] 郭玉蓉[1] 邓红[1] 

机构地区：[1]陕西师范大学食品工程与营养科学学院,陕西西安710062 [2]天水长城果汁集团有限公司,甘肃天水741024

出　　处：《食品与发酵工业》2013年第8期157-160,共4页Food and Fermentation Industries

基　　金：甘肃省科技计划项目(1009NTGE032);陕西省科技统筹计划项目(2011KTCQ02-04)资助

摘　　要：以自行研制的冷破碎设备为基础,研究了榨前分离工艺对提高浓缩苹果汁品质的影响;通过试验对比分析了新工艺前后苹果汁的色值、农残、多酚、果胶等各项指标的变化情况。试验结果表明:冷破碎榨前分离工艺使苹果汁的色值升高了97.41%;果胶含量降低34.78%,多酚含量降低3.42%;农药残留敌百虫含量降低61.67%,敌敌畏含量降低了86.94%。冷破碎榨前分离技术能明显提高果汁的品质,是高色值脱农残浓缩苹果汁生产的良好工艺,更是果汁加工技术的发展趋势,值得应用推广。On the basis of cold pulping machine which was manufactured by ourselves, the effects of removing peel pre-squeezed on the quality of apple juice concentrate was studied. Under the new processing, the modification of parameters such as color, pesticide residue, total phenol and pectin content for the apple juice were analyzed through control experiments. The tests results showed that color value of apple juice concentrate was increased 97.4% , pectin and phenols was decrease 34.77% and 3.42% respectively. At the same time, the pesticide residue of trichlorfon and dichlorvos in apple juice concentrate was lower 61.67% and 86.94% respectively compare to traditional process- ing techniques. Overall, the new process of cold pulping and peel removing pre-squeezed is very good for the produc- tion of high color value and pesticide free apple juice concentrates. It can be used to improve the fruit juice quality greatly, and accordance with the development trend of customers preference. Therefore, it will have a wide applica- tion in fruit juice industry.

关 键 词：冷破碎 浓缩苹果汁 色值 农残 工艺 

分 类 号：TS255.44[轻工技术与工程—农产品加工及贮藏工程]