Processes and systems for recovering products from a corn fermentation mash. In one example, a process for recovering products from a corn fermentation mash can include separating ethanol from a fermentation mash to produce a whole stillage. The fermentation mash can be derived from a ground corn product milled from a plurality of corn pieces. The plurality of corn pieces can include whole corn kernels, fragmented corn kernels, size-reduced corn kernels, milled corn kernels, or a mixture thereof. Greater than 25 wt % of the ground corn product can have a particle size of greater than 105 μm and greater than 80 wt % of the ground corn product can have a particle size of 425 μm or less, as measured according to AOAC 965.22-1966. The process can also include separating the whole stillage to produce a fiber rich portion and a filtrate.

Processes and systems for recovering products from a corn fermentation mash. In one example, a process for recovering products from a corn fermentation mash can include separating ethanol from a fermentation mash to produce a whole stillage. The fermentation mash can be derived from a ground corn product milled from a plurality of corn pieces. The plurality of corn pieces can include whole corn kernels, fragmented corn kernels, size-reduced corn kernels, milled corn kernels, or a mixture thereof. Greater than 25 wt % of the ground corn product can have a particle size of greater than 105 μm and greater than 80 wt % of the ground corn product can have a particle size of 425 μm or less, as measured according to AOAC 965.22-1966. The process can also include separating the whole stillage to produce a fiber rich portion and a filtrate.

The present disclosure provides compositions and methods for enhancing oil recovery and protein recovery from a product from a corn fermentation process stream, such as corn syrup. Compositions generally include a product from a corn fermentation stream and an additive including at least one alkylphenol ethoxylate formaldehyde resin, at least one sodium alkyl sulfate, or a blend of at least one anionic surfactant with at least one non-ionic surfactant in a weight ratio of the at least one nonionic surfactant to the at least one anionic surfactant in a range from about 1:20 to about 20:1. Methods combine such an additive with the product from a corn fermentation stream to produce a mixture which is preferably heated and centrifuged to separate oil and protein from the product.

The present disclosure provides compositions and methods for enhancing oil recovery and protein recovery from a product from a corn fermentation process stream, such as corn syrup. Compositions generally include a product from a corn fermentation stream and an additive including at least one alkylphenol ethoxylate formaldehyde resin, at least one sodium alkyl sulfate, or a blend of at least one anionic surfactant with at least one non-ionic surfactant in a weight ratio of the at least one nonionic surfactant to the at least one anionic surfactant in a range from about 1:20 to about 20:1. Methods combine such an additive with the product from a corn fermentation stream to produce a mixture which is preferably heated and centrifuged to separate oil and protein from the product.

Disclosed herein are embodiments for the isolation of fiber and protein from brewers' spent grain. In some embodiments, the protein has a reduced fat content. In some embodiments, the protein has an improved Protein Digestibility Corrected Amino Acid Score.

Disclosed herein are embodiments for the isolation of fiber and protein from brewers' spent grain. In some embodiments, the protein has a reduced fat content. In some embodiments, the protein has an improved Protein Digestibility Corrected Amino Acid Score.

The present disclosure relates to methods and systems for concentrating a solids stream recovered from one or more process streams derived from a beer in a biorefinery by exposing the recovered solids stream to an evaporator system to remove moisture therefrom and form a concentrated, recovered solids stream.

Stillage solids concentration methods are disclosed wherein a solids concentration aid is added to a process stream mixture in a corn to ethanol process. The solids concentration aid may comprise a cationic polymer coagulant or flocculant or both, a starch based coagulant or flocculant or a biologically derived (i.e., plant or animal origin) coagulant or flocculant. Acrylamide/quaternary ammonium copolymers and homopolymeric polydiallyldimethyl ammonium chloride polymers are noteworthy examples of suitable solids concentration aids.

Stillage solids concentration methods are disclosed wherein a solids concentration aid is added to a process stream mixture in a corn to ethanol process. The solids concentration aid may comprise a cationic polymer coagulant or flocculant or both, a starch based coagulant or flocculant or a biologically derived (i.e., plant or animal origin) coagulant or flocculant. Acrylamide/quaternary ammonium copolymers and homopolymeric polydiallyldimethyl ammonium chloride polymers are noteworthy examples of suitable solids concentration aids.

Systems and methods in accordance with the present invention provide for the efficient distillation of ethanol in an ethanol plant including a beer column. Heat is captured in the distillation process and utilized to drive operations in the ethanol plant.