Extraction of starch from potato procedure

In extraction of starch from potato procedure, we use physical separation method to process potato starch.  By taking use of the property that potato starch is insoluble in cold water and has a specific gravity greater than water, Doing Company use water and professional potato starch processing equipment to separate the starch from the water suspension to achieve the purpose of recovering the starch.
Extraction of starch from potato procedure

1. Cleaning and washing section: Coarsely cleaning of potatoes takes place during the transport of potatoes to the scrubber by channel in extraction of starch from potato procedure. The main cleaning is conducted in dry sieve. The stones, sludge and light wastes are removed for isolation of starch from potato. Then the potato is transported into paddle washing machine for removing the remaining sand, dirt, soil and other debris. Water used for washing is then purified and recycled back into the process.

2. potato crushing section: Crushing takes place after washing and is sometimes applied to whole tubers. And the crushing serves to break potato structure and release starch from potato cell. In extraction of starch from potato procedure, from cassava cleaning and conveying to the crushing process, it is a continuous operation. After the crushing, the slurry is sent to the downstream process by the transfer pump.

3. Separation section: This process is mainly used to separate fiber from starch. It is required that the starch residue contains less than 35% starch after separation process in extraction of starch from potato procedure, wherein the free starch contains less than 5%, and the fiber impurity content of the milk slurry is less than 0.05%.
Potato grater


4. Starch desanding section: In extraction of starch from potato procedure, this process is used for removing sand out of potato slurry. And the principle is specific gravity separation. After sand removal, not only impurities such as fine sand are removed but also disc separator can be protected.

5. Concentration and refining: After desanding, the starch slurry is injected into the hydrocyclon station through the starch pump for concentration and refining. In extraction of starch from potato procedure, hydrocyclone station is widely used for this purpose. Starch slurry firstly goes from concentration stage, to refining and finally to recovering stage. And the protein, fibers and cell sap are basically removed.

6. Dehydrating unit: In extraction of starch from potato procedure, dehydrating is used to reduce the water content to facilitate drying for how to extract potato starch. potato starch processing machine used for starch dewatering has the characteristic of stable operation, good dewatering effect and automatic discharging.
Cassava starch separating machine


7. Drying: Flash dryer is extensively used in extraction of starch from potato procedure which can effectively dry wet starch to low moisture content by negative pressure dying system.  Instantaneous drying system ensures high efficiency and moisture uniformity of starch.


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View more:
potato starch manufacturing plant cost
potato starch machinery supplier
potato starch manufacturing process
how is potato starch made

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