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Production Technology of Tapioca/Cassava Starch

Production Technology of Tapioca Starch
Cassava starch is mainly used for food, sugar, medicine, feed, textile, paper, chemical and other industrial sectors of raw materials.
Cassava starch production process, is the physical separation process, that is, cassava starch and raw materials, cellulose, white, inorganic and other substances separate. In the production process, according to the starch is not soluble in cold water and the proportion of water than the nature, water and special machinery and equipment, the starch from the water separated in the suspension, so as to achieve the purpose of starch recovery. Its production process is divided into transportation, cleaning, broken solution, impregnation, screening, bleaching, desanding, separation, dehydration, dry bath, air-cooled, packaging and other processes.

2 raw materials
Cassava starch raw materials, including fresh cassava and cassava chips, they are the main production material, must ensure that quality, fresh fresh cassava, the day of procurement, the same day into the factory, the same day processing, no mud, sand, roots, Other impurities mixed; dry cassava chips require dry, no mold, no deterioration, no moth-eaten.
The average composition of fresh cassava is as follows:
Starch 27%
Cellulose 4%
Protein 1%
Other 3%
Moisture 65%
The average composition of cassava chips is:
Starch 68%
Cellulose 8%
Protein 3%
Other 8%
Moisture 13%
As the cassava varieties, harvest time, natural conditions, the production of water to different raw materials, starch content is different.

3 Excipients (for processing cassava chips)
Sulfuric acid 2KG / T starch
Bleaching powder 0.5kg / t starch
Potassium permanganate 0.1 kg / t starch

4 process route
Cassava starch wet process technology, including drum cleaning, the second broken solution, thick pulp screening, countercurrent washing, redox bleaching (to fresh cassava for the raw materials needed to bleach), cyclone desanding, thick slurry separation, overflow Pulp dehydration, a negative pressure pulse air drying.

5 process
Cassava starch - processing technology Cassava starch processing equipment map Cassava - cleaning - crushing - starch extraction - slurry separation - fine sand in addition to - de-juice - concentrated refining - dehydration - dry.