Vacuum freeze-drying machine pet food freeze dryer Yonglian FD freeze-drying equipment Vacuum freeze-drying equipment is widely used in various food freeze-drying processing. It is used by major enterprises for freeze-drying fruits and vegetables, freeze-drying of meat, freeze-drying of coffee, freeze-drying of probiotics, freeze-drying of edible fungi, freeze-drying of Chinese herbal medicines and pet food freeze-drying. Vacuum freeze-drying machine pet food freeze dryer Yonglian FD freeze-drying equipment components: freeze-drying machine is composed of refrigeration system, vacuum system, heating system and electrical instrument control system. The main components are drying boxes, condensers, refrigeration units, vacuum pumps, heating/cooling devices, etc. Vacuum freeze-drying machine pet food freeze dryer Yonglian FD freeze-drying equipment working principle: After the vacuum freeze-drying machine machine puts the material into the material box for freezing. The freezing process of the material, on the one hand, the vacuum system vacuums to take away some of the moisture; on the other hand, when the material is frozen, the moisture contained in the molecules is discharged to the surface of the material to freeze, and after the freezing requirements are met, the heating system heats and dries the material, through pumping The vacuum brings the moisture contained in the material to the freezing collection box to freeze it to meet the requirements of freeze-drying the material. Traditional drying causes the material to wrinkle and destroy cells. The structure of the sample is not destroyed during the freeze-drying process, as the solid components are supported by the solid ice in their position. When the ice sublimates, it leaves pores in the dry residue. This preserves the integrity of the biological and chemical structure of the product and its activity. There are many different uses of freeze-drying in the laboratory, and it is indispensable in biochemical and pharmaceutical applications. It is used to obtain biological materials that can be preserved for a long time, such as microbial culture, enzymes, blood, and pharmaceuticals. In addition to long-term preservation stability, it also retains its inherent biological activity and structure. To this end, vacuum freeze-drying machines are used to prepare tissue samples for structural studies (such as electron microscopy studies). Lyophilizing is also used in chemical analyses to obtain dry samples, or to concentrate samples to increase analytical sensitivity. Freeze-drying stabilizes the sample composition without changing the chemical composition, and is an ideal analytical aid. Freeze drying can occur naturally. Naturally, this process is slow and unpredictable. Through the freeze-drying system, people have improved and broken down many steps, speeding up the process.