Tapioca starch production process

Tapioca starch production process can be done by industrial scale production line, which offer new opportunities for the application of tapioca starch in high-end foods. Next is the main procedure and notice of tapioca starch production process, also our starch machine introduction:

1. Raw material cleaning part of tapioca starch production process: dry sieve is used for cleaning sediment and impurities on fresh cassava. Cleaning efficiency affect significantly the quality of final starch in tapioca starch production process. Through the collision of raw materials and friction between corner angles of the drum, sand and debris are separated completely. And sewage and sediment are discharged to bottom of the shell through drum gap. Then cleaned raw material is slowly moved to discharging outlet and transported to collecting hopper by scraper conveyor.

Dry sieve for cassava cleaning

2. Washing the tapioca thoroughly. Because soil and dirt remained in the washing station yield problems later. So washing is therefore very important. High quality washing improves the effect of tapioca starch production process, because many impurities resemble starch in specific weight and size, the only way to remove them is washing. The washing takes place in three compartments - one with water level and two without. Paddle washing machine combines flushing at a low water level can continuous removal of dirt and peel.

3. The first step starch extraction in tapioca starch production process is rasping, which can open all tuber cells and release all the starch granules. Slurry obtained is mixture of pulp (cell walls), fruit juice, and starch. With modern high-speed rasping machine, rasping is a one-pass operation only. An even feed of the rasps is essential for a steady flow throughout the rest of the tapioca starch production process.

Rasping machine

4. For separating starch granules from the cells, powerful flushing will take place in closed centrifuge sieve machine to flushed out starch and leave the fruit juice. The high efficiency makes it feasible to apply stainless steel. The sieve plates have long perforations that are only 125 microns across. It is a counter current process followed by a fine fiber washing on conical sieves also. This is a  residue seperation section in tapioca starch production process, advanced technology can guarantee the starch slurry processed clean entirely.

Hydrocyclone and its parts

5. The starch slurry is diluted and concentrated again and again by hydrocyclone station to reduce fiber and juice to low levels with a minimum of fresh water in tapioca starch production process. Increasing the number of hydro cyclone refining steps may accomplish considerable savings of fresh water. In the strong gravitational fields of a hydrocyclone and a centrifuge, the starch settles quickly, while fiber (pulp residuals) just float in the water. Fibers with adhering air bubbles are lighter than water and seek towards the overflow. Fibers with starch granules enclosed are heavier and sink towards the underflow and mix with the starch. Refining is based on the differences in weight density between water, fibers, and starch. This process is very key in the whole tapioca starch production process.

Peeler centrifuge working principle

6. Then adopt the peeler centrifuge for cassava starch dewatering, it's a suitable choice. The machine has siphon and adopts centrifugal force, so cassava starch can be dried with high efficiency. After this processing of tapioca starch production process, the moisture of the starch will be about 38%, can be delivery for drying process.

7. The moist dewatered starch will be dried in a flash dryer with hot air. Temperature of the inlet air will be controlled by heating boiler, fast speed for starch drying can guarantee the starch whitness. After this tapioca starch production process, the moisture of tapioca starch is normally 12-13%.

Tapioca starch production process

Tapioca starch is common used in sweeteners, sizing of paper and textile and excellent food starch as thickener and stabilizer. Wasted pulp can be cattle feed. Juice and spent process water can be fertilizers for land by spreading, tapioca harvest can take place the whole year, and that give tapioca starch a competitive advantage over potato starch in many applications.