摘要
通过三因素二次通用旋转组合试验设计,考察了物料厚度、干燥室压力和加热板温度对真空冷冻干燥人参干燥时间的影响,得出了人参升华干燥时间与各因素间的回归模型。试验结果表明,影响试验指标的主要因素是物料厚度,试验因素主次排列为物料厚度、加热温度、干燥室压力。其人参真空冷冻干燥工艺参数的较优组合为干燥室压力为64 Pa、物料厚度为3 mm、加热温度为44℃。
The effects of the factors of material thickness, dry chamber pressure and board temperature on sublimation time of vacuum freeze-drying of Panax ginseng were investigated with three-factor second order general revolving combination design, and the regression model was obtained between the sublimation time of vacuum freeze-drying ofPanax g/nseng and the factors in this study. The experiment results showed that the most important factor affecting productivity was material thickness and the important order of factors was material thickness, heating temperature, pressure of drying house. The optimized combination of factors was pressure of drying house 64 Pa, material thickness 3 ram, heating temperature 44 ℃.
出处
《食品工业》
北大核心
2013年第8期101-103,共3页
The Food Industry
基金
国家星火计划面上项目(2012GA650008)
辽宁省博士启动基金项目(项目编号20131094)
关键词
人参
冷冻干燥
工艺参数
共晶点
Panax ginseng
freeze-drying
process parameters
eutectic point
