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What is potato starch extraction process?

DATA:2018-05-21/ FAQ/ chat online/ Technical support

Starch production is an isolation of starch from plant sources. It takes place in starch plants. Starch industry is a part of food processing which is using starch as a starting material for production of starch derivatives, hydrolysates, dextrins. The potato starch extraction process comprises the steps such as delivery and unloading potatoes, cleaning, rasping of tubers, potato juice separation, starch extraction, starch milk rafination, dewatering of refined starch milk and potato starch drying.

potato starch extraction plant

Potato starch extraction plant


Delivery and unloading potatoes:

Fresh potatoes are delivered to the starch plants via road or rail transport. Unloading of potatoes could be done in two ways:

Cleaning section of the potato starch extraction process:

Coarsely cleaning of potatoes takes place during the transport of potatoes to the scrubber by channel.

Rasping of potatoes:

Most often the rasping of potato tubers is carried out with a rotary grater. The purpose of this stage is disruption of cell walls, which therefore release the starch.

potato starch extraction process flow chart

Potato starch extraction process

Potato starch extraction-potato fiber separation:

This allows the recovery full-value protein from juice and reduces the onerousness of water juice as a sludge.

Desanding part:

Starch milk purification and concentration. Normally we use the hydro cyclone groups to do starch purification and concentration.

potato starch extraction machine

Potato starch extraction process used machines manufacturered by DOING

Potato starch drying:

It is a suspension of starch in water, which needs dewatering up to 20% of moisture. Doing Company developed the air-stream starch dryer with low temperature srying system, which can dry the potato starch in short time, guarantee no gelatinization.

All in all, our company offer complete set of potato starch extraction plant, also can make a turn-key project for you, if you want to get more details of the potato starch extraction process or have other problems of our machine, contact us freely.

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