阳春长山药热泵干燥工艺初步研究

摘要

采用热泵干燥技术对阳春长山药进行干燥试验研究,以热烫处理、切片厚度和干燥温度为试验变量,通过对干燥后山药品质进行分析,确定最佳工艺参数为:新鲜物料切片后直接浸泡清水无需进行热烫处理,切片厚度6 mm,热泵干燥温度60℃,干燥时间3 h~4 h,可获得较好的山药干制品.%The drying experiment of Yangchun long yam was carried out by heat pump drying technique. The blanching treatment,slice thickness and drying temperature were used as experimental variables.After drying yam quality analysis,to determine the optimum process parameters:Fresh material slices directly soaked in wa-ter without blanching treatment,slice thickness 6 mm,heat pump drying temperature of 60℃,dry 3 to 4 hours. That can getting a better Yangchun long yam dry products.