Roquette Freres

Jean-Paul Salome

Philippe Lefevre

Guy M Fleche

Antoine Gaset

Jean-Marc Verrin

Luc Rigal

Claude Fache

Robert Houard

Patrick Ferez

Gilles Paillassa

The present invention relates to a process for extracting and refining the components of pea flour, characterized in that it consists of the steps of preparing a flour by grinding dried peas previously cleaned, sorted, blanched, freed of dust, introducing the flour thus obtained into water and separating the components of the pea flour using at least one of the pieces of equipment from a potato starch factory chosen from the group consisting of hydrocyclones, centrifugal decanters and sieves, without a stage for separating the internal fibers of the pea being carried out beforehand, devices comprising at least one of these pieces of equipment, and to a particular quality of pea starch thus extracted.

Process for extracting the components of pea flour

The invention relates to a process for preparing a noncrystallizable polyol syrup stable to heat and to alkaline medium, using a step of hydrogenation of a sugar syrup and a step of caramelization of the hydrogenated sugar syrup, wherein the hydrogenated and caramelized sugar syrup is subjected to purification on ion-exchange resins, the said purification comprising at least one passage over a strong cationic resin at a temperature of less than 50&deg; C., the said temperature being chosen according to the level of reducing sugars desired in the noncrystallizable polyol syrup. It also relates to the use of the polyol syrup obtained for the preparation of toothpastes.

Process for preparing a noncrystallizable polyol syrup

The invention relates to a polyol composition exhibiting a very high heat stability and a very high chemical stability, characterized in that it exhibits an optical density lower than or equal to 0.100 in an S test. The invention also relates to a process for the preparation of such a composition, this process consisting in subjecting a polyol syrup to a stabilization stage such as a fermentation, an oxidation or a caramelization, and then to a purification stage. The invention also relates to the application of this composition to the manufacture of products using alkalis or undergoing a heat treatment at high temperature.

Polyol composition, process for its preparation and its applications

The invention is concerned with diacetals resulting of the dehyrocondensation of an alditol comprising 5 or 6 carbon atoms and a benzoic aldehyde such as in particular DBS, BEBS, BMBS or DBX, featuring a purity of at least 95% and being free of organic solvent traces, and a process for preparing the same in aqueous medium, in the presence of an acid catalyst, according to which acetalization is carried out by mixing the reactants under stirring, the reaction mixture is then neutralized by a base, then the solid phase is separated from the liquid phase and washed with warm water, wherein: the initial molar ratio of the benzoic aldehyde to the alditol is lower than 2/1, the acid catalyst is an arylsulfonic acid, the initial molar ratio of the arylsulfonic acid to the benzoic aldehyde is higher than 0.6, and the reaction temperature is lower than about 45.degree. C. Application specially to the clarification and stabilization of polyolefins.

High purity alditol diacetals, free from organic solvent traces and

The invention relates to a process for manufacturing 5-hydroxymethylfurfural consisting of bringing a hexose into contact with a catalytic support in the form of a solution of said hexose in a strongly polar aprotic solvent, particularly dimethylsulfoxide, the 5-hydroxymethylfurfural formed being extracted by means of a solvent for the latter also brought into contact with the catalytic support. All of the operations are carried out preferably continuously, particularly by the counter-current principle.

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Vieux Berquin, France

Jean-Paul Salome