How is tapioca extracted from cassava root?
Tapioca is also called cassava starch which is extracted from cassava roots. But how is tapioca extracted from cassava root? The whole tapioca extraction process includes five main parts: pretreatment of raw materials, tapioca extraction, separation and refining of starch slurry, dehydration and drying process and the final sieving and packing process.
And the following is the detail process for how is tapioca extracted from cassava root
Tapioca extraction process
1. pretreatment of raw materials
Raw material sorting: The is the first step for how is tapioca extracted from cassava root. The quality of starch has a great relationship with the selected raw materials. The cassava yield is low if the selected cassava is less than 10 months. While the old cassava more than 24 months has been granulated, causing great difficulties for crushing.
Cassava cleaning: The cassava is weighed and then sent to the cleaning machine through the cleaning conveyor for cleaning. This process for how is tapioca extracted from cassava root is mainly to remove mud, sand and other debris on the surface of cassava.
Cassava washing: This process for how is tapioca extracted from cassava root adopts paddle washing machine. The cassava raw material is rolled along with the wall of the cylinder, and is sprayed, washed, bathed, frustrated and cleaned with water as a medium. It is required to clean the sediment by washing and then send it to the grating process.
Cassava washing machine
2. Tapioca extraction process
Then it comes to the most important procedure for the process of how is tapioca extracted from cassava root. The role of grating is to destroy the structure of cassava, so as to release the starch granules from the cell of cassava roots. The widely used cassava grinding machine is rasper which features with high grating coefficient, even particles and high extraction rate.
3. Separation and refining of starch slurry
Slurry and residue separation: Separation is another important process which determines the starch yield for how is tapioca extracted from cassava root. Centrifuge sieve and fine fiber sieve are used in this process for separating starch slurry and fibers.
desanding: The slurry comes out of fine fiber sieve still contains sand and must be removed by desander. For the process of how is tapioca extracted from cassava root, the main function of desanding is to remove sand in starch slurry so as to improve the taste of end products.
Concentration and refining: The function of this process for how is tapioca extracted from cassava root is to separate the insoluble protein and residual soluble protein and other impurities from the starch slurry, thereby achieving the purpose of washing, refining and concentrating the starch milk.
Cassava starch refining machine
4. Dehydration and drying process
Dehydration: The widely used dehydrating machine is peeler centrifuge which features with large capacity and high efficient. The required moisture content after dehydration is 38%-40% for how is tapioca extracted from cassava root.
Drying: The flash dryer is used for drying process for how is tapioca extracted from cassava root. The hot airflow enters the heat exchanger, so that the clean air at the other end becomes dry hot air, and is sent to the drying tower to be mixed with wet starch and complete the drying process. The water is vaporized in 2-3 seconds and discharged through a separator.
Cassava starch drying machine
5. Sieving and packing process
Sieving: The dried tapioca products need to be sieved to meet the market standard for sale.
packing: This is the last step for how is tapioca extracted from cassava root. This process requires sufficient packaging, firm sewing and timely storage.
In conclusion, the above is the whole process for how is tapioca extracted from cassava root. Doing Company is a professional and experienced cassava deep processing equipment manufacturer, we can not only offer solution for the question, but also provide with high quality tapioca processing machine. Welcome contact us for any further question.