The present invention relates to a method of making glucose syrup from liquefied starch, and to compositions useful therein.

The invention provides carbohydrate compositions and products comprising the carbohydrate compositions, such as dry products or a low-viscosity reduced-sugar syrup, methods of making the carbohydrate compositions and products, and uses thereof.

The invention provides carbohydrate compositions and products comprising the carbohydrate compositions, such as dry products or a low-viscosity reduced-sugar syrup, methods of making the carbohydrate compositions and products, and uses thereof.

A process for treating brewers spent grains for producing a high value protein product and a cellulosic residue, both from brewers spent grains that have not gone through fermentation. The high value protein product is useful as a protein supplement, or feed for livestock and poultry, and the cellulosic residue has value as a feedstock for a thermochemical process unit, such as for the production of a biofuel.

A process for treating brewers spent grains for producing a high value protein product and a cellulosic residue, both from brewers spent grains that have not gone through fermentation. The high value protein product is useful as a protein supplement, or feed for livestock and poultry, and the cellulosic residue has value as a feedstock for a thermochemical process unit, such as for the production of a biofuel.

The present invention relates to a method of making glucose syrup from liquefied starch comprising, (a) contacting the liquefied starch with a glucoamylase, a pullulanase, and optionally an alpha-amylase wherein the ratio of pullulanase dose expressed as NPUN/gDS, to alpha-amylase dose expressed as FAU(A)/gDS is at least 60, particularly at least 75, particularly at least 100, more particularly at least 150, more particularly at least 200, more particularly at least 250, more particularly at least 300, more particularly at least 400, more particularly at least 500, more particularly at least 600, more particularly at least 800 or if no alpha-amylase is present the pullulanse is present in a dose of at least 0.5, particularly at least 0.75, particularly at least 1.0, particularly at least 1.5 NPUN/gDS, and (b) saccharifying the liquefied starch.

The present invention relates to a method of making glucose syrup from liquefied starch comprising, (a) contacting the liquefied starch with a glucoamylase, a pullulanase, and optionally an alpha-amylase wherein the ratio of pullulanase dose expressed as NPUN/gDS, to alpha-amylase dose expressed as FAU(A)/gDS is at least 60, particularly at least 75, particularly at least 100, more particularly at least 150, more particularly at least 200, more particularly at least 250, more particularly at least 300, more particularly at least 400, more particularly at least 500, more particularly at least 600, more particularly at least 800 or if no alpha-amylase is present the pullulanse is present in a dose of at least 0.5, particularly at least 0.75, particularly at least 1.0, particularly at least 1.5 NPUN/gDS, and (b) saccharifying the liquefied starch.

An improved dry grind system and method for producing a sugar stream from grains or similar carbohydrate sources and/or residues, such as for biofuel production, using membrane filtration. In particular, a sugar/carbohydrate stream, which includes a desired Dextrose Equivalent (DE) where DE describes the degree of conversion of starch to dextrose (aka glucose) and/or has had removed therefrom an undesirable amount of unfermentable components, can be produced after saccharification and prior to fermentation (or other sugar conversion process) using membrane filtration, with such sugar stream being available for biofuel production, e.g., alcohol production, or other processes. In addition, the systems and methods also can involve the removal of certain grain components, e.g., corn kernel components, including protein, oil and/or fiber, prior to fermentation or other conversion systems. In other words, sugar stream production and/or grain component separation occurs on the front end of the system and method.

An improved dry grind system and method for producing a sugar stream from grains or similar carbohydrate sources and/or residues, such as for biofuel production, using membrane filtration. In particular, a sugar/carbohydrate stream, which includes a desired Dextrose Equivalent (DE) where DE describes the degree of conversion of starch to dextrose (aka glucose) and/or has had removed therefrom an undesirable amount of unfermentable components, can be produced after saccharification and prior to fermentation (or other sugar conversion process) using membrane filtration, with such sugar stream being available for biofuel production, e.g., alcohol production, or other processes. In addition, the systems and methods also can involve the removal of certain grain components, e.g., corn kernel components, including protein, oil and/or fiber, prior to fermentation or other conversion systems. In other words, sugar stream production and/or grain component separation occurs on the front end of the system and method.

The present invention relates to alpha-amylase variants comprising a substitution at a position corresponding to position 188 and at least one further substitution at a position corresponding to position 242 or 279 or 275 of SEQ ID NO: 1, in particular one or more combinations of substitutions selected from the group consisting of E188P+S242Y, E188P+S242F, E188P+S242H, E188P+S242W, E188P+S242P, E188P+S242I, E188P+S242T, E188P+S242L, E188P+K279W, E188P+K279Y, E188P+K279F, E188P+K279H, E188P+K279I, E188P+K279L, E188P+K279D, E188P+K279M, E188P+K279S, E188P+K279T E188P+K279N, E188P+K279Q, E188P+K279V, E188P+K279A, E188P+N275F, E188P+N275Y, E188P+N275W, and E188P+N275H, wherein the variant has at least 60%, at least 65%, at least 70%, at least 75%, at least 80%, at least 85%, at least 90%, at least 95%, at least 96%, at least 97%, at least 98%, or at least 99%, but less than 100% sequence identity to a parent alpha amylase selected from the group consisting of: SEQ ID NO: 1, SEQ ID NO: 2, SEQ ID NO: 3, SEQ ID NO: 4, SEQ ID NO: 5, SEQ ID NO: 6, SEQ ID NO: 7, SEQ ID NO: 8, SEQ ID NO: 9, SEQ ID NO: 10, SEQ ID NO: 11, SEQ ID NO: 12, SEQ ID NO: 13, SEQ ID NO: 14, SEQ ID NO: 15, SEQ ID NO: 16, SEQ ID NO: 17, SEQ ID NO: 18, and SEQ ID NO: 27. The present invention also relates to polynucleotides encoding the variants; nucleic acid constructs, vectors, and host cells comprising the polynucleotides; and methods of using the variants.