Soya protein isolate is a highly purified form of soya protein with a minimum protein content of 90% on dry basis. It is made from de-oiled soya cake/defatted soya flour. Most of the non-protein component needs to be removed by the process to make the product.
Soya protein isolate is prepared by dissolving the protein content of soya flour or flake by the addition of alkali. The dissolved protein is separated from the insoluble impurities using a decanter centrifuge. The protein in the clarified is precipitated by the addition of acid and then recovered using a decanter centrifuge. The solid content of the recovered protein can be varied 15% to 20%. This solid is then passed through a spray drier to get protein isolate powder containing 90% D.B. protein. SSP has developed this process technology after several pilot plant trial runs and are in a position to offer commercial scale plant starting from 1 TPD to 20 TPD capacities.
While designing the plant, SSP has taken care of the following aspects:
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SSP Private Limited