【摘要】 针对苹果在运输和贮藏中存在的各种问题,研究了苹果真空冷冻干燥工艺参数(干燥室压力、物料厚度、加热温度)对生产率的影响规律。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、干燥室压力、加热温度。其较优组合为干燥室压力为20Pa,物料厚度为10mm,加热温度为40℃。更多还原

【Abstract】 The influence of technological parameters of vacuum freeze drying of apple (pressure of drying house, material thickness, heating temperature) upon the productivity of product were studied in this paper. The experiment results show that the most important factor affecting productivity is material thickness and the important order of factors is material thickness ,pressure of drying house, heating temperature. The optimized combination of factors is pressure of drying house 20pa, material thickness 10mm, heating temperature 40℃.更多还原