Patent ID: 11957138
Assignee: VERBIO VEREINIGTE BIOENERGIE AG
Field: Food chemistry (Chemistry)
Classification: CPC A  Y | IPC A

Claim 0:
1. A process for producing a protein product, the process comprising:
a) providing a thin stillage or a thin stillage concentrate obtained from plants and yeasts, wherein the thin stillage comprises organic components of fermented and distilled cereal mash that has not been converted to ethanol, salts and yeast;
b) separating a protein concentrate from the thin stillage or the thin stillage concentrate from a) by means of solid-liquid separation;
c) diluting the protein concentrate from b) with an aqueous process liquid to a dry substance content of at most 15 wt. %, controlling the temperature of the diluted protein concentrate to at least 60° C. up to a maximum of 95° C., adjusting the pH of the diluted and temperature-controlled protein concentrate to an alkaline pH, and subsequently reacting the diluted, temperature-controlled, and pH-adjusted protein concentrate at a residence time of at most 30 min to produce a processed protein concentrate;
d) cooling the processed protein concentrate from c) and subsequently separating a liquid phase by means of solid-liquid separation;
e) adjusting the pH of the liquid phase from d) to an acidic pH, and then separating a solid phase by solid-liquid separation; and
f) dispersing the solid phase from e) in a solvent and subsequently separating a product phase by solid-liquid separation, wherein the product phase comprises or includes the protein product.