Additives and use thereof in corn fermentation process streams and other bioprocesses

A method of increasing the amount of protein separated and recovered in a coproduct from a product from a corn fermentation process stream comprising the steps of:

• contacting the product from the corn fermentation process stream with at least one additive selected from the group of alkylphenol ethoxylate formaldehyde resins, sodium alkyl sulfate, a blend of at least one anionic surfactant with at least one nonionic surfactant having 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, a blend of at least one alkylphenol ethoxylate formaldehyde resin and at least one anionic surfactant, a blend of sodium alkyl sulfate and at least one nonionic surfactant, at least one nonionic surfactant, and any combination thereof to produce a mixture;
• separating protein from the mixture;
• and
• recovering a coproduct comprising the protein;
• wherein the amount of protein recovered in the coproduct is greater than the amount of protein that would be recovered using the same process without inclusion of the additive.