Process and installation for the preparation of a sweet wort
AssigneeClextral
InventorMichel Billon
Life of this patent
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Abstract
Process for the preparation of a sweet wort from a cereal, in which previously mashed cereal flour is mixed with a hydrolyzing substance introducing enzymes to undergo a saccharification treatment. Before mashing, the cereal flour is subjected to a cooking-extrusion at a temperature above 100.degree. C., by passage continuously in a screw-extrusion machine provided with heating means. The amount of water can be limited to that necessary for the bursting of the starch grain. The extruded cereal is then mashed and mixed with the hydrolyzing substance to undergo saccharification, and the latter can then be effected by infusion. The invention is especially applicable to the preparation of beer or of alcoholic beverages by fermentation of the sweet wort obtained.
Claims13
Process for the preparation of a sweet wort from at least one cereal, in which the cereal is first mashed with water then mixed with a hydrolyzing substance introducing enzymes to undergo a saccharification treatment, in which process, the cereal is before mashing subjected to a cooking-extrusion treatment carried out at a temperature above 100.degree. C., by passage continuously of the cereal, with an amount of water sufficient for the bursting of the starch grain, in a screw extrusion machine comprising at least two screws and provided with heating means for the material and wherein the extruded material is then mashed and subjected to a saccharification treatment carried out by a progressive heating in the presence of the hydrolyzing substance, until the production of the sweet wort.
Installation for the preparation of sweet wort from at least one cereal and a substance hydrolyzing by contributing enzymes, comprising at least one device for the mashing with water of the cereal and of the hydrolyzing substance and a device for the saccharification of the cereal with the hydrolyzing substance, said installation comprising a cooking-extrusion device for the cereal, placed upstream of the mashing device and constituted by a screw-extrusion machine comprising at least two screws and provided with heating means, in which the cereal undergoes a cooking extrusion under pressure at a temperature above 100.degree. C., the extruded cereal being then mashed and mixed in desired proportion with the hydrolyzing substance in the saccharification device.
Dependencies are inferred from the claim text.