摘要
采用DF技术对芡实的真空冷冻干燥生产工艺进行了探讨。结果表明,芡实最佳冷冻干燥工艺条件为速冻温度-32℃^-35℃,速冻时间1 h,升华干燥时仓压90～110Pa;解析干燥时仓压为40～50Pa,解析时的物料温度为50℃,冷冻干燥所需时间为12 h。
Freeze drying process of Gordon euryale seeds was investigated based on FD technique.The results showed that conditions of vacuum freeze drying process of Gordon euryale seeds were as follows,the quick-freeze temperature was-32℃ ^-35℃;the quick-freeze time was 1h;the drying sublimation pressure was 90～110Pa;the drying desorption pressure was 40～50Pa;the materiel temperature during desorption was about 50℃;and the whole freeze-dying took a period of 12h.
出处
《湖北农业科学》
北大核心
2011年第2期373-375,共3页
Hubei Agricultural Sciences
基金
苏州市2008年农业科技项目(SNG0811)
关键词
鲜芡实
FD技术
冻干食品
gordon euryale seed
FD technique
freeze-dying food
