Abstract: A process for producing maltitol includes at least: producing a maltose syrup, by hydrolysis of a granular starch, in a first stage of liquefaction of granular starch to form a liquefied starch, followed by a stage of saccharification of the liquefied starch to which an aqueous solution of beta-amylase has been added, to form the maltose syrup; hydrogenating the maltose syrup to form an aqueous maltitol composition; and recovering the maltitol composition. The aqueous solution of beta-amylase also includes potassium sorbate, glycerol, and sodium carbonate.

Abstract: The present invention relates to a method for stabilising an aqueous solution of ?-amylase, in particular by the use of glycerol, potassium sorbate and sodium carbonate. Said cocktail of additives is particularly effective at maintaining the enzymatic activity of ?-amylase over time. Another aim of the present invention consists of using said cocktail for the specific function of maintaining the enzymatic activity of the ?-amylase. Another aim of the present invention is to provide an aqueous solution of ?-amylase containing the aforementioned cocktail. A final aim of the present invention consists of using said ?-amylase aqueous solution in bread-making, in malting, as a food additive, as a digestive agent, for sweetener production, in pharmacy and, finally, for maltose and maltose-enriched syrup production.

Abstract: The present invention concerns an improved method for extracting ?-amylases from a soluble fraction of a starch plant, said method comprising a step of clarification by microfiltration and a step of concentration and purification by ultrafiltration. This method is characterised in that it uses a protease during the microfiltration step, making it possible to greatly reduce the fouling of the membranes used, which increases the production time before washing. Simultaneously, perfectly clear permeates are obtained, which assists with the subsequent ultrafiltration step and makes it possible to improve the transmission of ?-amylase. Finally, the protease has no negative effect on the ?-amylase activity.

Abstract: The present invention relates to a method for stabilising an aqueous solution of ?-amylase, in particular by the use of glycerol, potassium sorbate and sodium carbonate. Said cocktail of additives is particularly effective at maintaining the enzymatic activity of ?-amylase over time. Another aim of the present invention consists of using said cocktail for the specific function of maintaining the enzymatic activity of the ?-amylase. Another aim of the present invention is to provide an aqueous solution of ?-amylase containing the aforementioned cocktail. A final aim of the present invention consists of using said ?-amylase aqueous solution in bread-making, in malting, as a food additive, as a digestive agent, for sweetener production, in pharmacy and, finally, for maltose and maltose-enriched syrup production.

Abstract: The present invention relates to a method for obtaining a preparation of ?-amylases from the soluble fraction of starch plants, characterized in that the soluble fraction of starch plants is selected from the group consisting of the soluble fractions of wheat, pea, broad bean, horse bean, rice, barley, rye, buckwheat, potato and sweet potato, and preferably of wheat and barley, a clarification of said soluble fractions is carried out in such a way as to remove therefrom the insoluble substances and the colloids and, optionally, an ultrafiltration of said clarified soluble fractions is carried out in such a way as to obtain an ultrafiltration retentate containing the concentrated ?-amylase and an ultrafiltration permeate, said ultrafiltration retentate containing the concentrated ?-amylase is diafiltered and the resulting ?-amylase is recovered.

Abstract: The invention relates to a method for producing maltitol, with an increased yield, in which a stage of saccharification of starch is carried out using a stabilised aqueous solution of beta-amylase which also comprises potassium sorbate, glycerol and sodium carbonate.

Abstract: The present invention relates to a method for stabilising an aqueous solution of ?-amylase, in particular by the use of glycerol, potassium sorbate and sodium carbonate. The cocktail of additives is particularly effective at maintaining the enzymatic activity of ?-amylase over time. Another aim of the present invention consists of using the cocktail for the specific function of maintaining the enzymatic activity of the ?-amylase. Another aim of the present invention is to provide an aqueous solution of ?-amylase containing the aforementioned cocktail. A final aim of the present invention consists of using the ?-amylase aqueous solution in bread-making, in malting, as a food additive, as a digestive agent, for sweetener production, in pharmacy and, finally, for maltose and maltose-enriched syrup production.

Abstract: An improved method for extracting ?-amylases from a soluble fraction of a starch plant, includes a step of clarification by microfiltration and a step of concentration and purification by ultrafiltration. This method is characterized in that it uses a protease during the microfiltration step, making it possible to greatly reduce the fouling of the membranes used, which increases the production time before washing. Simultaneously, perfectly clear permeates are obtained, which assists with the subsequent ultrafiltration step and makes it possible to improve the transmission of ?-amylase. Finally, the protease has no negative effect on the ?-amylase activity.

Abstract: The present invention relates to a method for obtaining a preparation of ?-amylases from the soluble fraction of starch plants, characterized in that the soluble fraction of starch plants is selected from the group consisting of the soluble fractions of wheat, pea, broad bean, horse bean, rice, barley, rye, buckwheat, potato and sweet potato, and preferably of wheat and barley, a clarification of said soluble fractions is carried out in such a way as to remove therefrom the insoluble substances and the colloids and, optionally, an ultrafiltration of said clarified soluble fractions is carried out in such a way as to obtain an ultrafiltration retentate containing the concentrated ?-amylase and an ultrafiltration permeate, said ultrafiltration retentate containing the concentrated ?-amylase is diafiltered and the resulting ?-amylase is recovered.