Abstract: The invention concerns an immobilized maltogenic &agr;-amylase, which is adsorbed on particles of at least one porous substrate selected from the group consisting of phenolic resins, acrylic resins and polystyrene resins. The present invention also relates to the use of such an &agr;-amylase for the preparation of a maltose-rich syrup.

Abstract: A process for the conversion of an organic material comprising an oxidation step during which an organic material undergoes the oxidising action of an enzymatic means capable of generating hydrogen peroxide, wherein said oxidation step is carried out, wholly or partly, in the presence of 0.001% to 1% of a metal selected from ruthenium, palladium and mixtures thereof.

Abstract: A novel method for making palatinitol comprising a first step of epimerising isomaltose under conditions enabling a mixture of &agr;-D-glucopyranosyl-(1→6)-D-mannose and isomaltose to be achieved, a second step of catalytically hydrogenating the mixture, and a third step of chromatographically depleting the isomaltitol in the hydrogenated mixture to give a roughly equimolecular mixture of &agr;-D-glucopyranosyl-(1→6)-D-sorbitol and &agr;-D-glucopyranosyl-(1→6)-D-mannitol.

Abstract: The invention concerns a process for the preparation of crystallised maltulose monohydrate, characterised in that it comprises the steps of preparing an aqueous maltulose solution of a strength above 65% by weight, concentrating the aqueous maltulose solution to a dry matter ratio of more than 50% by weight and at a temperature such that the degree of maltulose supersaturation is less than 1, cooling the concentrated solution so as to take the degree of maltulose supersaturation to a value above 1, crystallising the maltulose in said supersaturated solution by cooling it at a controlled speed and by stirring, obtaining the separation, recuperation and drying of the maltulose monohydrate crystals.

Abstract: "A process for the preparation of palatinitol, wherein in a first stage, the epimerization of isomaltose is carried out under conditions which allow a mixture of .alpha.-D-glucopyranosyl-(1.fwdarw.6)-D-mannose and isomaltose to be obtained, in a second stage, the epimerized mixture is depleted of isomaltose so as to obtain a new mixture containing a roughly equimolecular proportion of .alpha.-D-glucopyranosyl-(1.fwdarw.6)-D-mannose and isomaltose, and in a third stage, catalytic hydrogenation is carried out on this roughly eqimolar mixture".

Abstract: The invention relates to a process for the manufacture of a starch hydrolysate of low polymolecularity index which may be used in particular in continuous ambulatory peritoneal dialysis. This process consists essentially in acid and enzymatic hydrolysis of a waxy starch milk and then chromatography on macroporous strong cationic resins of the hydrolysate obtained. The starch hydrolysate is essentially characterized by a polymolecularity index of less than 2.8, a weight-average molecular weight between 5,000 and 22,500 daltons and a number-average molecular weight below 8,000 daltons.

Abstract: The subject of the invention is the use, as agent capable of controlling propagation of crystallization of maltitol present in a confectionery, of molecules having a molecular weight greater than 1,300. This use applies in particular to the preparation of boiled sugars and semicrystallized items.The invention also relates to the use, in confectionery, of a sweetening syrup crystallizable to maltitol, having a bimodal composition spectrum and comprising more than 3% of an agent for controlling propagation of crystallization of maltitol having a molecular weight greater than 1,300.