Abstract: The invention relates to a pea protein whose protein content is equal to or greater than 60% by dry weight, preferably ranging from 60 to 95% by weight, a molecular weight distribution profile is of 1.0-1.8%, preferably of 1.5-3.0% of proteins of greater than 100 000 Da, preferably 20-55% of proteins greater than 15 000 and 100 000 Da, 15-30% of proteins of greater than 5 00 and 15 00 Da and 25-50%, preferably 25-45% of proteins greater than 5 000 Da and whose soluble protein content determined by a method for measuring the protein solubility in water ranging from 20 to 85%, preferably 25 to 65%.

Abstract: A process for cross-linking proteins, according to which the crosslinking agent is dihydroxyacetone and the proteins are chosen from proteins from animal tissues, from milk or from blood, such as in particular casein, gelatin or collagen; proteins from cereals, such as in particular maize, wheat or rice proteins; protein from high-protein plants, such as in particular pea, alfalfa, lupin, barley, millet or sorghum proteins; proteins from oleaginous plants, such as in particular soybean proteins, for instance soybean cakes, rapeseed or flax proteins, for instance rapeseed cakes, sunflower, groundnut or cotton proteins; and proteins from tubers, such as in particular from potato or manioc.

Abstract: The present invention relates to a process for crosslinking proteins, according to which the crosslinking agent is a ketose containing 3 to 5 carbon atoms and said proteins are chosen from the group comprising proteins from animal tissues, from milk or from blood, such as in particular casein, gelatin or collagen; proteins from cereals, such as in particular maize, wheat or rice proteins; protein from high-protein plants, such as in particular pea, alfalfa, lupin, barley, millet or sorghum proteins; proteins from oleaginous plants, such as in particular soybean proteins, for instance soybean cakes, rapeseed or flax proteins, for instance rapeseed cakes, sunflower, groundnut or cotton proteins; and proteins from tubers, such as in particular from potato or manioc.

Abstract: The present invention relates to a granulated sweetening composition, characterized in that it comprises: a poorly soluble polyol with a water solubility of less than 60 g/100 g of solution at 20° C., a hydrogenated dextrin with a molecular weight between 3000 and 5000 daltons, maltitol. The invention is also directed towards a process for preparing such a composition.

Abstract: The invention relates to a pea protein whose protein content is equal to or greater than 60% by dry weight, preferably ranging from 60 to 95% by weight, a molecular weight distribution profile is of 1.0-1.8%, preferably of 1.5-3.0% of proteins of greater than 100 000 Da, preferably 20-55% of proteins greater than 15 000 and 100 000 Da, 15-30% of proteins of greater than 5 00 and 15 00 Da and 25-50%, preferably 25-45% of proteins greater than 5 000 Da and whose soluble protein content determined by a method for measuring the protein solubility in water ranging from 20 to 85%, preferably 25 to 65%.

Abstract: The present invention relates to a process for cross-linking proteins, according to which the crosslinking agent is a ketose containing 3 to 5 carbon atoms and said proteins are chosen from the group comprising proteins from animal tissues, from milk or from blood, such as in particular casein, gelatin or collagen; proteins from cereals, such as in particular maize, wheat or rice proteins; protein from high-protein plants, such as in particular pea, alfalfa, lupin, barley, millet or sorghum proteins; proteins from oleaginous plants, such as in particular soybean proteins, for instance soybean cakes, rapeseed or flax proteins, for instance rapeseed cakes, sunflower, groundnut or cotton proteins; and proteins from tubers, such as in particular from potato or manioc.

Abstract: The invention relates to a sweetening composition comprising a) at least one low soluble compound with a solubility in water of less than 60 g per 100 g of solution at 20° C. and b) at least one anti-crystallizing agent comprising a fraction of at least one compound selected from the group consisting of pyrodextrins and polyglucoses and a mixture of pyrodextrins and polyglucoses in the range of 1000 to 8000 Daltons. The invention relates also the use of such a composition for the manufacture of boiled sugars or as a flavoring carrier.

Abstract: The subject matter of the invention is branched maltodextrins, characterised by the fact that they present between 22% and 35%, preferably between 27 and 34%, glucosidic linkages 1→6, a content of reducing sugars lower than 20%, a polymolecularity index lower than 5 and a number average molecular weight Mn at most equal to 4500 g/mole, and the method of obtaining these branched maltodextrins.

Abstract: The invention relates to a method for preparing a self-sufficient fermentation medium allowing the production of metabolites from a renewable raw material, characterized in that it consists in choosing the renewable raw material from the group consisting of wheat, pea and potato solubles, preferably wheat solubles, treating the said renewable raw material so as to release therefrom the carbon and nitrogen sources directly assimilable by microorganisms, and recovering the self-sufficient fermentation medium thus obtained.

Abstract: The invention relates to a nitrogenous composition resulting from the enzymatic hydrolysis of an aqueous solution of maize gluten, having a ratio of the concentrations or inorganic phosphorus to total phosphorus (Pi/Pt) greater than or equal to 0.05, preferably from 0.05 to 0.5 and a ratio of the concentrations of amine nitrogen to total nitrogen (Na/Nt) greater than or equal to 0.025. The invention also relates to the use of a nitrogenous composition according to the invention in culture media for microorganisms which produce, in particular, organic acid.

Abstract: The invention relates to a nitrogenous composition resulting from the enzymatic hydrolysis of an aqueous solution of maize gluten, having a ratio of the concentrations of inorganic phosphorus to total phosphorus (Pi/Pt) greater than or equal to 0.05, preferably from 0.05 to 0.5 and a ratio of the concentrations of amine nitrogen to total nitrogen (Na/Nt) greater than or equal to 0.025. The invention also relates to the use of a nitrogenous composition according to the invention in culture media for microorganisms which produce, in particular, organic acid.

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: The invention relates to a nitrogenous composition resulting from the enzymatic hydrolysis of an aqueous solution of maize gluten, having a ratio of the concentrations of inorganic phosphorus to total phosphorus (Pi/Pt) greater than or equal to 0.05, preferably from 0.05 to 0.5 and a ratio of the concentrations of amine nitrogen to total nitrogen (Na/Nt) greater than or equal to 0.025. The invention also relates to the use of a nitrogenous composition according to the invention in culture media for microorganisms which produce, in particular, organic acid.

Abstract: The present invention relates to a process for the purification of 1,3-propanediol from a fermentation medium of a 1,3-propanediol-producing microorganism, comprising 1,3-propanediol and fermentation coproducts consisting at least of glycerol, wherein the 1,3-propanediol-producing microorganism is separated from the other components of the fermentation medium to give a clarified aqueous solution, clarified aqueous solution is passed over a cation exchange resin to give at least one fraction comprising purified 1,3-propanediol and at least one fraction comprising the fermentation coproducts, and the 1,3-propanediol is recovered.

Abstract: The invention relates to a process for preparing a fermentation medium for producing high-purity metabolites from a renewable raw material, characterised in that it consists of optionally treating said renewable raw material to enrich it with carbon or nitrogen sources which can be directly assimilated by micro-organisms and to eliminate insoluble impurities, using a technique chosen from the group consisting of nanofiltration and electrodialysis, alone or in combination, to eliminate low molecular weight impurities from said renewable raw material without degrading its concentration of carbon sources which can be directly assimilated, treating the raw material from which the low molecular weight impurities have been eliminated in this way to top it up with nitrogen or carbon sources which can be directly assimilated by the micro-organisms, and recovering the fermentation medium obtained in this way.

Abstract: The invention relates to a process for the preparation of high purity lactic acid from an aqueous solution containing said acid in the form of salt(s), characterised in that the aqueous solution is treated with a strong acid in order to liberate lactic acid in the free form and to produce salts of the corresponding strong acid, said salts of the strong acid are crystallised by evaporative crystallisation and lactic acid is recovered in the free form in solution.

Abstract: The invention relates to a process for the preparation of high purity lactic acid from an aqueous solution containing said acid in the form of salt(s), characterised in that the aqueous solution is treated with a strong acid in order to liberate lactic acid in the free form and to produce salts of the corresponding strong acid, said salts of the strong acid are crystallised by evaporative crystallisation and lactic acid is recovered in the free form in solution.

Abstract: The invention relates to a nitrogenous composition resulting from the enzymatic hydrolysis of an aqueous solution of maize gluten, having a ratio of the concentrations of inorganic phosphorus to total phosphorus (Pi/Pt) greater than or equal to 0.05, preferably from 0.05 to 0.5 and a ratio of the concentrations of amine nitrogen to total nitrogen (Na/Nt) greater than or equal to 0.025. The invention also relates to the use of a nitrogenous composition according to the invention in culture media for microorganisms which produce, in particular, organic acid.

Abstract: The invention relates to a method of manufacturing a maltose-rich syrup, comprising the successive stages consisting of: (a) carrying out a liquefaction of a starch milk; (b) carrying out a saccharification of the liquefied starch milk in the presence of a maltogenic &agr;-amylase; (c) continuing the saccharification of the liquefied starch milk in the presence of a &bgr;-amylase and at least one debranching enzyme chosen from the group consisting of pullulanases and isoamylases with a view to obtaining a syrup which is rich in maltose.

Abstract: The present invention relates to a process for the separation and purification of lactic acid from a fermentation medium wherein the lactic acid is totally or partially in the form of a salt or salts. The lactic acid producing microorganisms are separated from the other components of the fermentation medium. This solution is concentrated and then acidified to a pH below or equal to 3. The acidified solution is passed over a cation exchange resin to give a fraction that has maximum of 25% lactic acid salts relative to the dry weight of the solution. This fraction is subjected to bipolar fractionating electrodialysis. The resulting lactic acid is further purified, concentrated and then recovered.