The process and principle of mechanized production are: Production process: conveying - cleaning - disintegration - screening - sand removal - sedimentation (or concentration) - dehydration - drying - air-cooled packaging. First, the basic principle of cleaning The role of cleaning: Mainly remove the sediments on the outer skin of sweet potato, and wash away the epidermis of sweet potato roots. The cleaning of fresh sweet potatoes or dried sweet potato slices, which is the raw material for producing starch, is the basis for guaranteeing the quality of starch. The cleaner the cleaning, the better the quality of the starch. Second, the basic principle of disintegration The function of the crushed solution: Sweet potato starch is mainly stored in the fleshy part of the root tuber, and only a small amount is stored in the endothelium. The purpose of the disintegration is to destroy the tissue structure of the sweet potato so that the tiny starch granules can be disassembled from the root of the tube. The starch released from cells is called free starch; it is called bound starch that remains in the cells inside the residue. Crushing is one of the most important processes in fresh potato processing. It is related to the extraction rate of fresh potatoes and the quality of starch. The requirements for crushing are: 1. Try to break the fresh potato cells and release more free starch granules; 2. Easy to separate. It is not desirable that the pomace be too fine. The fineness of the pomace is not conducive to the separation of starch from other components, and it also increases the difficulty of separating the fine slag. Third, the basic principle of screening Sweet potato slag is a slender fiber with a larger volume than starch granules. Peng's coefficient of expansion is also greater than that of starch granules, and its specific gravity is lighter than that of starch granules. The pulp to be crushed is used as a medium to make the starch slurry contained in the slags further. Filter out. Fourth, the basic principles of purification and sedimentation The proportion of mud and sand is greater than that of water and larger than the proportion of starch granules. According to the principle of specific gravity separation, the use of swirling sand removal, or the use of flow tank settlement method, can achieve more satisfactory results. The proportion of yellow pulp, close to water, and lighter than the proportion of starch particles, the shape of the palm-shaped, the longer the processing cycle, the greater the performance of the glue, sticky screen, sticky starch particles, extremely difficult to separate, it requires fresh raw materials, The process is short and separated in time. V. The basic principle of dehydration The concentrated starch slurry still contains more water, and further dehydration can be performed to dry it. Sixth, the basic principle of drying At present, the whole process time of air drying (also called flash drying) that is generally used in starch factories is completed in a flash. Therefore, the moisture inside the starch granules cannot be pasted because it has been dried. Therefore, gelatinization or degradation does not occur. Air-flow drying is a co-current drying process, that is, the concurrent flow of wet-powder material and hot gas flow, which is composed of two processes of heat transfer and mass transfer. When the wet starch is in contact with hot air, the hot air transfers heat energy to the surface of the wet starch and then the surface to the interior. This process is the heat transfer process; at the same time, the moisture in the wet starch is in the liquid or gaseous state from the interior of the material. Spread to the surface of the starch, the surface of the starch diffuses through the gas film into the hot air. This is a mass transfer process. That is, the high-temperature air flow and the wet starch are heat-exchanged in a uniform manner in the drying tube, so that the dried starch is in a powder form and can be packed and stored in the warehouse after cooling. Yunnan NBC Agricultural Development Co., Ltd deals in (heat pump air drying) Yunnan Plateau agricultural products. Including Flowers And Leaves, Fruits, rhizomes, poultry meat, aquatic products and other drying products. All products are free of additives, agricultural residues and phosphorus and sulfur. It has obtained the national SC food safety production certification, and at the same time, it is produced according to the international standards, reaching the export level, and can be OEM. Edible Fungus,Dry Edible Fungus,Dried Edible Fungus,Free of Additives Yunnan New Biology Culture Co,.Ltd , https://www.lvsancoffee.com