How potato starch is made?

Potato starch making process is a physical separation process, which separate the starch from the fiber, protein and other impurities by sweet potato starch processing machine.
The process for how potato starch is made mainly includes the following part:
sweet potato choosing-cleaning-washing-cutting and crushing-separating-concentration and refining-dewatering-drying-packing

Accordingly, here is the sweet potato starch processing machine used for how potato starch is made
dry sieve for cleaning-rotary washing machine-cutting machine-rasper for crushing-centrifuge sieve and fine fiber sieve for separating-hydrocyclone station for concentration and refining-vacuum filter for dewatering-flash dryer for drying

Potato starch msking process

Here are the detail introduction of how potato starch is made process

1. Cleaning and washing unit: The sweet potato is firstly be cleaned in dry sieve to remove the sand, weed and other dirty materials in potato starch production plant. The dry sieve is a high effective washing machine which will not damage the raw material for how potato starch is made. And the washed sweet potato is transported into rotary washing machine to further wash the attached impurities, such as soil and sand. This washing machine adopts countercurrent washing principle which can ensure the raw material be washed cleanly and thoroughly.

2. Rasping unit: This is the key process in the how potato starch is made. In this process, the sweet potato is crushed into slurry. And the bound starch in sweet potato turns to free starch. And the extraction rate of sweet potato determines the final starch yield. DOING rasper is an advanced rasping machine with high rasping rate and high extraction rate.  

3. Separating unit: Separating section is another key process in how potato starch is made that affects the extraction rate of sweet potato starch. Its main purpose is to separate the fiber from starch. And the widely used separating machine includes centriguge sieve and fine fiber sieve. Good centrifugal sieve and centrifugal technology can allow the extraction of free starch from cassava cells. And normally we use multi stage centrifuge sieve for the separating process so as to achieve better separating effect in potato starch production line.

Potato starch separating machine

4.Desanding: Desanding is a process mainly used for removing the sand out of starch slurry as as to improve the taste of finished products for how potato starch is made. Desander is a how potato starch is madeadopts specific gravity separation method to achieve the purpose of sand removal.

5.Concentraction and purification unit:After a series of separating process, the fiber is almost removed. Then it is concentration and purification for how potato starch is made. Hydrocyclone station is the mainly used sweet potato starch processing machine in these process. The function of hydrocyclone station is to remove the fine fibers, protein and cell sap out of starch milk so as to achieve the purpose of concentration and purification. Hydrocyclone station is composed of a series of hydrocyclone which can remove the impurities better. which ensures the final product meet the standard.

6. Dehydration unit: In the process of how potato starch is made, the purpose of dehydration is to reduce the water content of sweet potato milk. And vacuum filter is mainly used for this process. After dehydration by DOING vacuum filter, the moisture content of wet starch is around 38%.

Potato starch dewatering machine

7. Drying and packaging unit: The purpose of how potato starch is made for drying is to dry the dehydrated starch to the desired moisture content to meet market standard. The air is heated to the required temperature through the filter net through the heat exchanger, and the hot air is sucked into the flash dryer by the fan. Then the high speed hot air mixes with the wet starch and dry the starch by heat exchange. The air and starch are separated in the cyclone separation device. The air is discharged out of the machine while the starch is transported into the packing machine. Then the final sweet potato starch is packed by semi-automatic machine for storage.

Here is the complete description of the how potato starch is made process. Doing Company is a senior and professional sweet potato starch equipment manufacturer, our business includes cassava starch processing line, potato starch processing line, sweet potato starch processing line. Should you have any interest in this industry, please feel free to contact us.

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cassava starch machine