The Applications of Vacuum Freeze—drying Technology on Food

The main advantage of food vacuum freeze-drying technique is keeping the color,smell,taste,quality and the shape of the food.It can maintain maximum the nutrients,such as vitamins,protein etc.And it has a good rehydration,which can save a long time at the room temperature.Vacuum freeze-drying food has been widely used in convenience food,prepared food and so on.Vacuum freeze-drying technique is a high technological content and widly used technology.The products with green,convenient and healthy character,are more and more in people's graces.The pater introduced the principle of the vacuum freezy-drying technology,the technology process and operation points,the character,the applications and present situation at home and abroad and its development trend.