The present invention provides a process for the production of a protein powder having an improved solubility and taste profile from brewer's spent grain. The process comprises nanofiltration at a specified applied pressure. The present invention also provides a protein powder produced from brewer's spent grain, a process for producing food or beverage products incorporating the protein powder, and food or beverage products comprising the protein powder.

A method for obtaining one or more fiber rich and one or more protein rich fractions from spent grain, SG, the method comprising: dehydrating (S1) wet spent grain, WSG, into dehydrated spent grain, DSG, by arranging the WSG on at least one dehydration surface, wherein the dehydration surface comprises a net with apertures arranged to allow air to penetrate without the spent grain falling through, and wherein a conditioned air movement system is arranged to move air over, under the dehydration surface as well as through the apertures, and comminuting (S2) the DSG by a comminution reactor comprising a spinnable shaft and two or more processing chambers, separated by segmented divider plates, wherein each processing chamber comprises one rotor disc attached to the shaft and one or more vortex generators placed at respective apex corners of stationary side walls of the processing chambers, wherein the DSG is fed into the comminution reactor and fiber-rich and protein-rich fractions are liberated from the DSG by means of a non-linear vortex flow of DSG and liberated products generated in the processing chambers.

A process prepares a beverage or beverage component. The process includes an enzymatic treatment of brewer's spent grain including addition of one or a combination of enzymes with alpha-amylase, gluco-amylase, cellulase, xylanase, protease and/or beta-glucanase activity and fermentation by a strain of lactic acid bacteria. The combination of enzymes and enzymatic treatment conditions is such that the lactic acid bacteria produce 4.5 g/L lactic acid and metabolise sugar such that the resulting fermented broth contains less than 2.5% w/w and preferably less than 0.5% w/w residual sugar or the lactic acid bacteria produce 4.5 g/L lactic acid and metabolise sugar such that the resulting fermented broth contains at least 2.5% w/w residual sugar.

This disclosure describes methods to separate solids from liquids in a production facility. A process separates components in the process stream by applying non-condensable media to create density differences and then using a mechanical device to separate the solids from the liquids based on the density difference. The process produces the liquids and solids, which may be further processed to create valuable animal feed products.

A process for preparing a beverage or beverage component can have the following steps. Providing brewer's spent grain occurs. Then, performing a saccharification by enzymatic treatment of the brewer's spent grain and a fermentation of the saccharified brewer's spent grain with lactic acid bacteria and/or acetic acid bacteria and/or probiotics obtains a fermented broth. Filtering the fermented broth and collecting the permeate obtains the beverage or beverage component. Homogenizing the fermented broth is performed to obtain the beverage or beverage component.

This disclosure describes methods to separate solids from liquids in a production facility. A process separates components in the process stream by applying non-condensable media to create density differences and then using a mechanical device to separate the solids from the liquids based on the density difference. The process produces the liquids and solids, which may be further processed to create valuable animal feed products.

Provided is a method of processing stillage from an ethanol production process. The method comprises treating stillage comprising oil, protein, and water upstream of a separation, concentration or evaporation step with at least one organic coagulant and at least one flocculant, thereby forming treated thin stillage comprising solids which include at least a portion of the oil and protein; and clarifying the treated stillage via a solid/liquid separation process thereby forming clarified stillage and a separated solids phase comprising at least a portion of the protein from the stillage.

Aspects of the present disclosure include methods for fractionating whole stillage using one or more hydrocyclones and optional screening device. Aspects of the present disclosure include a stillage fractionation and/or clarification system for carrying out the methods described herein.

The present invention relates to a process-economic method for the disconnection/detachment of constituents consisting of water-soluble and dissolved compounds comprising proteins and/or carbohydrates and/or flavorings and/or colorant agents and/or fats and/or toxins; —optionally water-soluble and undissolved compounds comprising starch; —solid matter comprising cellulose-based fibers and/or lignin-rich shells; of a protein-containing biogenic starting material.

The present invention provides a zymolytic rice protein powder with low granular sensation, and a method for preparing the zymolytic rice protein powder comprising the following steps: (1) pretreatment of rice residue after sugar production; (2) high temperature extrusion pretreatment; (3) refining treatment; (4) wet crushing; (5) controlling zymolysis; (6) terminating zymolysis; (7) microjet treatment; (8) spray drying; (9) subsequent crushing. The protein content of the zymolytic rice protein powder in the present invention is more than 80%; the fat content thereof is less than 3%; the water content thereof is less than 5%; and the nitrogen solubility index thereof is more than 30%. The molecular weight distribution of the soluble protein is as follows: the proportion thereof with a molecular weight of less than 2000 Da is more than 70%.