Patent ID: 7829680
Filing Date: 2010-11-09
Classification: A23J,C07K

Abstract:
1. A method for protein isolation as a co-product of alcohol production, comprising: receiving a grain product at a holding receptacle, the grain product being at least one of whole stillage, dried distillers grain and wet distillers grain; directing the grain product from the holding receptacle over a plurality of screens, thereby allowing a fiber-containing portion of the grain product to be collected on the plurality of screens and further allowing a protein-containing portion of the grain product and an oil-containing portion of the grain product to pass through the plurality of screens; directing the protein-containing portion and the oil-containing portion over a finishing screen, thereby allowing remaining fiber fractions from the protein-containing portion and the oil-containing portion to be collected on the finishing screen and further allowing the protein-containing portion and the oil-containing portion to pass through the finishing screen; centrifuging the protein-containing portion and the oil-containing portion to isolate a protein fraction, an oil fraction, and a water and minerals fraction; and recovering the isolated protein fraction.