Full Production Line of Potatoes Starch
2016-12-20Commercial potato starch production process and small-scale production process is basically similar to the process: the potato - water transportation - cleaning transportation - two cleaning - cleaning to stone lifting - crushing, separation - sand - concentrated refined - vacuum dehydration - airflow Drying - finished packaging.
Potato crushing and grinding of a broken and secondary grinding, grinding the purpose of as much as possible to make the tubers of the cells rupture, and release from the starch granules, a broken grinding is to wash the potato pieces directly crushed, crushed Of the pulp is a mixture of such mixture is broken and unruptured plant cells. The starch released from the cells is free starch, the starch-bound starch remaining in unruptured cells, and the bound starch is discharged with the residue. The extent of potato cell destruction can indicate the extent to which starch granules are taken from the cells.
The equipment for crushing potato tubers is a silk-making machine and a hammer mill. In the potato starch processing often used for the first crushed after the extraction of free starch paste, the extraction of free starch residue added to the secondary crushing grinding. Secondary grinding can improve the grinding efficiency of potato 2-4%, in order to improve the effect of secondary grinding, slag should be as far as possible dehydration, and slag in the dry matter of not less than 10-20%. In the grinding operation, if the potato pieces decay is not sufficient, complete destruction of cell tissue, starch is not easy to take the net, the separation of starch can not be carried out quickly, if the grinding is too small, will result in separation of starch difficult. Potato tubers are ground, the production of starch water requirement is colorless and transparent, free of calcium soft water, otherwise, water impurities and color will penetrate into the starch, affecting the quality and color of starch