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How to prepare starch from potato ?

Date:2018-11-27/ FAQ/ Chat online/ Technical support

First, the production process for how to prepare starch from potato:

Cassava - transportation -  de-stone - drum washing - crushing - fiber separation - sand removal - protein separation - dehydration - feeding - starch drying - air cooling - finished products screening - packaging

Second, the main equipment used for how to prepare starch from potato:

Conveyor - dry sieve - potato washing machine - rasper - centrifuge sieve - desander- hydrocyclone station - vacuum filter - flash dryer - starch sieving machine - automatic packing machine

how to prepare starch from potatoMachines for how to prepare starch from potato

Third, the detain introduction of how to prepare starch from potato

1. The choice of raw materials

For the production of how to prepare starch from potato, potato varieties with high unit yield, strong disease resistance, large potato, high starch content and fresh ungerminated varieties should be selected.

2. Potato de-stone and washing stage

The de-stone process mainly removes impurities such as small stones, gravel, potato leaves and other debris. The pretreatment of potato facilitate the washing stage and reduce the load of washing machine. The washing is mainly used to wash away the sediment, soil and the like attached to the potato skin. It is required to wash the surface without clay for subsequent processing steps for how to prepare starch from potato .

There is no special requirement for washing water, but from the crushing operation, all processing water should be soft water.

3. Potato crushing stage

The starch granules of the potato are suspended in the cell juice of the parenchyma cells, so separation is easier than grain starch. The greater the degree of crushing, the higher the rate of starch extraction, and the crushing rate of potato is generally required to be above 90%. As one of the most important processes in the process of how to prepare starch from potato, crushing is related to the starch yield of fresh potatoes and the quality of starch.

potato starch processing machineMachine for potato cleaning, washing and crushing

4. Fiber separation stage

The starch slurry obtained by crushing  is a milky colloidal solution containing starch granules, crude fiber, protein, and various soluble saccharide, organic acids and the like, as well as microorganisms and enzymes.

The fiber separation process for how to prepare starch from potato mainly removes the fibers in the starch slurry by principle of centrifugal force.

5. Desanding stage

Due to the specific gravity of sand is greater than that of water and larger than that of starch granules. According to the principle of separation of specific gravity, the use of cyclone to remove sand can achieve better results for how to prepare starch from potato.

6. Protein separation stage

The refining step is a key step in washing the starch milk, and determines the extraction rate of the starch. This section for how to prepare starch from potato mainly removes the protein and other impurities in the starch milk to ensure that the whiteness of the starch reaches the market standards. The quality of the washing water should be controlled (softening water hardness, impurities, etc.).

potato starch processing machineEquipment for potato starch separation, desanding and refining

7. Starch milk dehydration stage

The concentrated starch slurry still contains much water and needs to be further dehydrated to facilitate drying for how to prepare starch from potato. The moisture content of the dehydrated starch milk is about 38%.

8. Wet starch drying stage

At present, the starch starch processing plant generally adopts airflow drying (also called flash drying) for how to prepare starch from potato, and the entire processing time is completed in an instant which can effectively prevent gelatinization or degradation phenomenon.

Basic principle of drying: starch is dried by heat exchange in the drying tube by high temperature gas stream and the wet starch.

9. Dry starch packing stage

After drying, the starch is cooled by special cooling system for how to prepare starch from potato. Then the cooled starch can be packed into bags for warehousing.

potato starch processing machineEquipment for starch dehydrating and drying

Potato starch processing equipment processing capacity and production:

10 tons / hour production line: produce about 50 tons of refined potato starch per day;

20 tons / hour production line: produce about 100 tons of refined potato starch per day;

30 tons / hour production line: produce about 150 tons of refined potato starch per day;

40 tons / hour production line: produce about 200 tons of refined potato starch per day;

CONTACT US

DOING company offers cassava processing machine from single machine to the complete production line. If you want to get more details about cassava processing machine, please contact us:

  • Do you want to buy machine?
  • Yes, I want to buy machine
  • No, I Just learning
  • What is your raw material?
  • Cassava
  • Potato
  • Sweet potato
  • Others
  • 2. What is the final product you want to produce?
  • Garri
  • Cassava flour
  • Cassava starch
  • Cassava chips
  • Attiekie
  • Bammy
  • Others
  • 3.What is your capacity plan?
  • Small scale garri machine
  • 1ton per day
  • 2tons per day
  • 3tons per day
  • 10tons per day
  • 20tons per day
  • Others
  • 3.What is your capacity plan?
  • Small scale
  • 5tons per day
  • 10tons per day
  • 20tons per day
  • 50tons per day
  • 100tons per day
  • Others
  • 3.What is your capacity plan?
  • Small scale
  • 5tons per day
  • 10tons per day
  • 20tons per day
  • 50tons per day
  • 100tons per day
  • 200tons per day
  • 300tons per day
  • Others
  • 3.What is your capacity plan?
  • Small scale
  • Middle type
  • Large scale
  • What is your capacity plan?
  • Small scale
  • 5tons per day
  • 10tons per day
  • 20tons per day
  • 50tons per day
  • 100tons per day
  • 200tons per day
  • 300tons per day
  • Others

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