葛根片热风干燥节能工艺条件优化研究  

Optimization of hot air drying and energy-saving process of kudzu root slices

作　　者：陈菽[1] 邵伟[1] 

机构地区：[1]三峡大学生物与制药学院,湖北宜昌443001

出　　处：《中国酿造》2015年第2期131-134,共4页China Brewing

基　　金：三峡大学生物与制药学院2013年资助项目(2014HY005)

摘　　要：为了找寻葛根片热风干燥的最佳条件,利用热风干燥箱,在不同的沸水预处理时间、切片厚度、热风温度和装料量条件下对葛根片进行干燥,获得了葛根片的干燥曲线,并分析了沸水预处理时间、切片厚度、热风温度和装料厚度对干燥效果的影响。并以含水率和单位物料能耗为指标,利用响应面分析法(RSM)对热风干燥工艺条件进行优化,得到了葛根片热风干燥工艺参数的最佳组合为沸水预处理时间32 s、切片厚度4 mm、热风温度56℃和装料量1.4 kg/m2,在此条件下,经过44 h的干燥,葛根片干基含水率为5.9%、单位物料能耗为1.88(kW·h)/kg。In order to find the optimal conditions of kudzu root hot air drying process, the effects of different boiling water pretreatment time, slices thickness, drying temperature, and loading conditions on kudzu root slices drying were investigated using hot air drying oven, and the kudzu root drying curve was obtained. Using dry base water ratio and united energy consumption as index to conduct response surface methodology, and the hot air drying process conditions were optimized. Results showed that the optimal parameter of kudzu root hot air drying process was boiling time 32 s, slices thickness 4 mm, hot air temperature 56℃, and loading 1.4 kg/m^2. Under these conditions, after 44 h drying process, the dry base water ratio was 5.9%, the minimum energy consumption was 1.88 （kW·h）/kg.

关 键 词：葛根片 热风干燥 最佳工艺 节能 

分 类 号：TS205.1[轻工技术与工程—食品科学]