Uses of surfactants in starch processing
AssigneesBASF SE, BASF Enzymes LLC
InventorsYukiko Sato, Frank Reinhold, Justin Andrew Bordley, Joseph P Borst, Matthew Gerard Lyon, Christopher Paul Myers, Katrina Marie Knauer
Life of this patent
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Abstract
Disclosed herein include methods of reducing the viscosity of a starch slurry during starch processing by the addition of one or more surfactants and one or more amylases. In some embodiments, the unexpected reduction in slurry viscosity results in a surprising increase in corn oil recovery, reduction in residual starch, and increased fermentation rate.
Claims19
A method of starch processing in the production of a fermentation product, comprising the steps of:
- (a) providing an alpha amylase;
- (b) providing at least one surfactant selected from alcohol alkoxylates, alkylphenol ethoxylates, block copolymers of EO/PO, block copolymers of ethylene diamine, alkyl polyglycosides, glycerol esters, polyethylene glycol esters, functionalized polyols, sorbitan esters, ethoxylated sorbitan esters, alkoxylated sorbitan esters, natural oil alkoxylates, polyoxyalkylene glycols, and any combination thereof;
- (c) adding (a) and (b) to a slurry tank comprising a slurry having a starch;
- wherein the viscosity of the slurry is reduced by at least 3% compared to a slurry not comprising the surfactant of (b);
- and
- (d) saccharifying and fermenting the slurry of step (c) to produce a fermentation product selected from the group consisting of alcohols, acids, ketones, amino acids, antibiotics, enzymes, vitamins, hormones, and any combination thereof;
- wherein the alpha amylase is a polypeptide comprising an amino acid sequence at least 85% identical to any one of the amino acid sequences of SEQ ID NO:1 to SEQ ID NO:
- 5.
A method of starch processing in the production of a fermentation product, comprising the steps of:
- (a) providing an alpha amylase;
- (b) providing at least one surfactant selected from alcohol alkoxylates, alkylphenol ethoxylates, block copolymers of EO/PO, block copolymers of ethylene diamine, alkyl polyglycosides, glycerol esters, polyethylene glycol esters, functionalized polyols, sorbitan esters, ethoxylated sorbitan esters, alkoxylated sorbitan esters, natural oil alkoxylates, polyoxyalkylene glycols, and any combination thereof;
- (c) adding (a) and (b) to a liquefaction tank comprising a slurry having a starch;
- wherein the viscosity of the slurry is reduced by at least 3% compared to a slurry not comprising the surfactant of (b);
- and
- (d) saccharifying and fermenting the slurry of step (c) to produce a fermentation product selected from the group consisting of alcohols, acids, ketones, amino acids, antibiotics, enzymes, vitamins, hormones, and any combination thereof;
- wherein the alpha amylase is a polypeptide comprising an amino acid sequence at least 85% identical to any one of the amino acid sequences of SEQ ID NO:1 to SEQ ID NO:
- 5.
Dependencies are inferred from the claim text.