]*>","")" /> Primary Research on Drying Conditions of Korla Pear Chips During Explosion Puffing Drying at Modified Temperature and Pressure

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Primary Research on Drying Conditions of Korla Pear Chips During Explosion Puffing Drying at Modified Temperature and Pressure

  • Received:2016-04-25 Revised:2016-04-25 Online:2016-04-25 Published:2016-04-25

库尔勒香梨脆片变温压差膨化干燥工艺初探

过利敏;孟伊娜;杨洋;邹淑萍;马燕;张健;许铭强;张谦   

  1. 新疆农业科学院农产品贮藏加工研究所,乌鲁木齐,830091;农业大学食品科学与药学学院,乌鲁木齐,830052

摘要: [目的]研究新疆主栽品种库尔勒香梨变温压差膨化干燥最佳工艺条件.[方法]对库尔勒香梨片进行前处理、预干燥,以及变温压差膨化干燥,以膨化温度、抽真空温度、抽真空时间、膨化压力、停滞时间为因素,通过单因素及正交试验,了解库尔勒香梨片在膨化干燥期间水分含量、水分活度、色差值以及膨化率变化情况,得出库尔勒香梨脆片的最佳干燥工艺.[结果]最佳膨化条件为:当切片厚度10 mm,膨化温度80℃,抽真空温度55℃,抽真空时间2.5h,膨化压力差0.02 MPa,停滞时间20 min.此时水分含量为2.71;;水分活度为0.17;色差值ΔE为63.31;膨化率为9.30;.[结论]变温压差膨化干制库尔勒香梨脆片感官品质好,口感较佳,具有一定的生产指导意义.