The role of preconditioning in wet puffed equipment
   Wet puffed devices are more and more being applied and chosen, mainly because there is a very critical part in the wet puffing equipment - preconditioning technology. In dog food process, preconditioning technology has a very important significance. It can improve the ability of extruder to make granulating.By preconditioning, the steam damp and hot raw material in advance to make it softening and more conducive to form, while reducing the raw material of mechanical wear and tear.  Also it can improve the bulk density, decrease the rate of duct, reduce process loss and maintain the environment in the process.
 
   At the same time, promote the starch gelatinization and protein denaturation, raise the pet digestion and absorption for dog food digestion and absorption. According to data shows, the raw material after steam preconditioning, starch gelatinization ratio can reach 35% ~ 45% and with no steam preconditioning gelatinization ratio is only 15%. Also it can completely destroy harmful germs further, in the process of preconditioning, high temperature steam can kill most of e. coli and salmonella,  improving the dog food safety and hygiene standards greatly.
 
   Though preconditioning, it can be convenient to add liquid nutritious material, increased the nutritional of dog food. After curing process in advance, it can greatly improve the production.So, the preconditioning can improve dog food nutritious and save energy. At  the same time, the wet puffing machine has good effect in granulating and stable.
   Jinan Sunward Machinery Co.,Ltd is a professional Puffing equipment manufacturer. Our company could also supply many other equipments&parts including puffed food processing line, Ornamental fish feed processing line, textured soy protein processing line, pet food processing line, floating fish feed processing line, puffed feed processing line, nutritional rice processing line, corn flakes processing line, Denatured starch processing line, core filling food processing line, puffed leisure food processing line, Fried puffed food processing line, Kurkure food processing line, breakfast cereal processing line, puffed nutritional powder processing line, bread crumbs processing line and so on.