Method for manufacturing an aqueous glucose solution from plants of the Triticeae species
AssigneeBASF SE
InventorsMatthias Boy, Stephan Freyer, Julia Brodersen
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Abstract
The present invention relates to a method for manufacturing an aqueous glucose solution from the starch components of Triticeae grains, for example from rye, triticale or in particular wheat grains. The invention also relates to a glucose-based fermentation method for manufacturing organic compounds in which the glucose manufactured for fermentation is produced from the starch components of Triticeae grains by way of a method according to the invention.
Claims23
A method for producing an aqueous glucose solution having a glucose content of at least 32% by weight from starch of wheat grains of Triticeae plants, comprising:
- a) fractionating dry milling of wheat grains of Triticeae plants to obtain a milled material, wherein the grains are separated into a starch-comprising endosperm fraction and a bran fraction, and wherein said milled material comprises essentially the starch-comprising endosperm fraction;
- b) converting the endosperm fraction milled material into an aqueous suspension, wherein the aqueous suspension comprises 30 to 55% by weight of starch based on total weight of the aqueous suspension;
- and c) enzymatically liquefying and enzymatically saccharifying the starch of the aqueous suspension to obtain an aqueous glucose solution, wherein the aqueous glucose solution has a glucose content of at least 32% by weight;
- and wherein gluten present in the endosperm fraction is depleted from the aqueous glucose solution obtained in step c) and/or from the aqueous suspension of the endosperm fraction before carrying out step c).
Dependencies are inferred from the claim text.