The Wet Extraction Method for Cassava Starch

Cassava starch is an important raw material widely used in food and industrial fields. The wet extraction method for cassava starch is an advanced way to quickly and efficiently extract pure starch from cassava tubers, which ensures a high yield and superior quality of starch, making it a preferred choice for starch producers. This article will introduce the wet extraction method for cassava starch to you in order to give you some guidance for starch processing.

According to the wet extraction method for cassava starch, its processing technology can be roughly divided into three important stages: the cleaning stage, the processing stage, and the drying stage.

the wet extraction method for cassava starch

The cleaning stage under the wet extraction method for cassava starch refers to the preliminary processing, that is to say, it is to remove the impurities attached to cassava tubers in the picking process. Fresh cassava tubers firstly will enter a dry sieve to sieve off the weeds and stones and so on, then they will be conveyed to a paddle washing machine by a belt conveyor. The paddle washing machine will remove the sediment with the counter-current water flow.

cassava starch processing equipments

According to the wet extraction method for cassava starch, the processing stage is to transform the cassava tubers into cassava pulp, from which the starch will be finally extracted. The cleaned cassava tubers will be first cut into pieces in a cutting machine. Then the cut small cassava pieces will be converted into fine pulp by a cassava rasper machine under the grinding effect. The cassava pulp will be conveyed to a centrifuge sieve for separating cassava residues and pumped into a desander for removing the remaining mud and sand. Following this, the cassava slurry will enter a hydrocyclone station for further purification, washing, and refining. Finally, a peeler centrifuge will be configured to dehydrate the excess water for the next drying stage. This is the working flow of the processing stage!

Under the wet extraction method for cassava starch, the drying stage is to dry the wet cassava starch. The dewatered cassava starch slurry will be transferred to an airflow dryer, which with the negative pressure drying principle will reduce the moisture content by less than 14%. Finally, an automatic packing machine will help to pack the qualified starch, preventing moisture absorption and ensuring the starch quality.

The above is an introduction to the wet extraction method for cassava starch. If you want to set up a cassava starch processing factory or want to get more details about the starch processing technology, welcome to contact us!