Potato starch making process in potato starch factory

Potato starch making process can be divided into the following process:
Potato cleaning and washing-crushing-separating-desanding and refining-dewatering-drying and packing
Potato starch making process 

1. Raw material choosing section
Choosing: The raw materials of potato starch include fresh potato and dried potato chips, which are the main substances for isolation of starch from potato. In potato starch making process, it is required that the raw potato must be fresh. It will be better to purchase, transport and process the fresh raw material on the same day.  The chosen raw potato should be no damage, not mildewed, not degraded, and free from insects.

2.Potato cleaning section
Dry sieve is a widely used cassava cleaning machine in potato starch making process whose main function is to remove the sand, soil, weed and other impurities from cassava. This machine adopts multiple inner spirals design which achieve the transportation function during cleaning process. It can not only play the function of quantitative conveyance, but also control the size of material conveyance.

3. Potato washing section
Washing section in potato starch making process is carried out by paddle washing machine. potato raw material is rolled along with the wall of the cylinder, and is sprayed, washed, bathed, mixed, and peeled with water as a medium.
Potato starch separating machine

4. Potato crushing section
Potato starch making process emphasize grinding as one of the most important working procedure in potato starch processing, it relates to the fresh potato starch yield and quality of starch. Therefore the grinding process requires to break potato cell as much as possible to release more free starch granules.

5.Starch and slag sepateting section
The crushed photo contains fiber, protein and other impurities, therefore it need to separate the starch from the impurities. Centrifuge sieve is mainly used machine to separate the fiber and starch slurry. The slurry separation is also an important process in potato starch making process which determines the yield of starch. Therefore this process need to be repeat several times to improve the potato starch content.

6. Concentration and refining section
The function of this process is to remove insoluble protein and residual soluble protein and other impurities from the starch slurry, thereby achieving the purpose of washing, refining and concentrating the starch milk. At present, the hydrocyclone station is commonly used for washing, refining and concentrating in potato starch making process. According to the different specific gravity of water, starch and yellow pulp protein, this machine can effectively remove the impurities.
Potato starch dewatering machine

7. Starch milk dewatering section
After that, the potato starch need to be dewatered in potato starch making process. Vacuum filer is the main machine for this process. It take use of negative pressure principle. When working, the starch is adsorbed on the filter cloth of the drum and is scraped off by the fixed scraper. While the filtrate enters the separator, so as to achieve the purpose of separation of starch and water.

8. Starch milk drying and packing section
The wet starch is then conveyed into air flow flash dryer for frying. The steam pressure is controlled at 0.8 MPa. The potato starch making process requires that the moisture content of the finished starch is about 13.5% after drying. Packing and warehousing requires a sufficient number of bags, and timely packing for storage.

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View more:
potato starch manufacturing plant cost
potato starch production in Pakistan
extraction of starch from potato procedure
potato starch processing machine
potato starch manufacturing process

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