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Abstract

The group of inventions relates to the food industry, namely, to a method and device for processing brewer's spent grains. The invention makes it possible to obtain a gluten-free protein drink with a protein content of at least 10.0 wt. % dry weight. The principle of the invention is based on the technology of preparing brewer's spent grains for the extraction of nutrients and their extraction by mechanical processing on the proposed industrial line. The essence of the method lies in the fact that brewer's spent grains are loosened on a vibrating screen, crushed in a colloid mill, with the addition of water in a ratio of 0.5:1 to 1:1 with respect to the grains, to obtain a paste-like homogeneous mass, and then this mass is processed in a screw extractor for further grinding and separation into 2 fractions, namely: a suspension with a water content of 90-95%, which all nutrients remain in, including the proteins of the brewer's spent grains, and crushed husks of the brewer's spent grains with a water content of 60-75% suitable for further industrial use. Then, the suspension is subjected to removing suspended particles to obtain the final product—vegetable milk (protein drink), which is pumped into a storage tank.

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First Claim