食品真空冷冻干燥研究

真空冻干技术是干燥技术领域中科技含量高、涉及知识面广的一种技术 ,因其产品具有绿色、方便、保健功能 ,使该技术日受关注 文中阐述了冻干机理与工艺 ,通过真空冻干与热风干燥产品品质的比较 ,阐明冻干食品的特殊性 ,并从设备、工艺及特性三个方面指出真空冷冻干燥存在的问题

Progress in Vacuum Freeze-Drying Technology for Foods

Vacuum freeze drying techniques contain complex technology and a wide range of knowledge. There is no question that it is superior to all other drying methods in keeping food fresh. The products manufactured by applying freeze drying technology have the following features: green, convenient and healthy. As a result, this technology is receiving more and more attention. This paper elaborates the freeze drying mechanism and technology, and then the specific characteristics of freeze drying products are presented. On the basis of a comparison between the quality of freeze drying products and that of air drying products, finally, the problems of food freeze drying industry are presented.