Patents Assigned to Roquette Freres
  • Patent number: 10829742
    Abstract: The present invention relates to a recombinant microbial host for the production of xylitol, the recombinant microbial host containing a nucleic acid sequence encoding a NAD+-specific D-arabitol 4-oxidoreductase (EC 1.1.1.11) using D-arabitol as substrate and producing D-xylulose as product, and a nucleic acid sequence encoding a NADPH-specific xylitol dehydrogenase using D-xylulose as substrate and producing xylitol as product.
    Type: Grant
    Filed: September 13, 2019
    Date of Patent: November 10, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Astrid Schaefer, Melanie Diefenbacher, Yiming Chang, Sumire Honda Malca, Markus Schwab, Sophie Defretin, Tania Gerard, Arnaud Heysen, Friederike Thor
  • Patent number: 10822491
    Abstract: The invention relates to a composition comprising: at least one aliphatic polyester (A) comprising diols containing at least ethylene glycol, 1,4-butanediol or mixtures thereof and diacids containing at least succinic acid, adipic acid or mixtures thereof; at least one starch (B); at least one organic plasticiser (C) for starch; optionally, an additional polyester or a mixture of additional polyesters (D) different from polyester (A). The composition is characterised in that it also comprises citric acid (E), the amount by weight of citric acid varying between 0.01 and 0.45 parts per 100 parts of the total dry weight of (A), (B), (C) and (D).
    Type: Grant
    Filed: November 17, 2015
    Date of Patent: November 3, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Sophie Marcille, Hélène Amedro, Nicolas Descamps, Thomas Buche, René Saint-Loup
  • Patent number: 10822372
    Abstract: One subject of the present invention is the use of a combination of a polyol (i) consisting of 12 carbon atoms and of a polyol (ii) consisting of 4 to 6 carbon atoms, as protein stabilizer. Another subject of the present invention is protein compositions comprising such a combination. A final subject of the present invention is a process for preparing protein compositions using such a combination.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: November 3, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Merveille Nono, Nicolas Descamps, Denis Simon, Olaf Haeusler
  • Publication number: 20200340922
    Abstract: A method for determining the degree of polymerization of a polymer is disclosed, the polymer being contained in a sample (2), the method comprising the following steps: a) illuminating the sample (2) using a laser beam (11) and acquiring (100) a Raman spectrum (S) representative of the polymer; b) identifying (110) a peak of interest (Pi) and determining (120) a position (vi) of the peak of interest in the Raman spectrum; c) on the basis of the position of the peak of interest, using a calibration function (ƒ) to determine a degree of polymerization (DP, DE) of the polymer, the calibration function expressing a variation in the position of the peak of interest as a function of the degree of polymerization of the polymer.
    Type: Application
    Filed: December 21, 2018
    Publication date: October 29, 2020
    Applicants: COMMISSARIAT A L'NERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES, ROQUETTE FRERES
    Inventors: Emeric BERGMANN, Jean-Charles BARITAUX, Baptiste BOIT, Aline LECOCQ, Veronique REBUFFEL, Oumar TOURE, Mathias IBERT
  • Publication number: 20200255590
    Abstract: A thermoplastic polyester, and in particular a thermoplastic polyester including at least one 1,4:3,6-dianhydro-L-iditol unit (A), at least one linear aliphatic diol unit (B), at least one aromatic dicarboxylic unit (C), the thermoplastic polyester having a reduced viscosity in solution (25° C.; phenol (50 wt. %): ortho-dichlorobenzene (50 wt. %); 5 g of polyester/L) greater than 25 mL/g. A method for preparing such a polyester, a composition including the same and the use of the thermoplastic polyester for the production of finished or semi-finished plastic articles. The thermoplastic polyester is advantageous in that it has a particularly high incorporation rate of 1,4:3,6-dianhydro-L-iditol (A) units, at least greater than 85%, and most specifically at least greater than 90%.
    Type: Application
    Filed: October 10, 2018
    Publication date: August 13, 2020
    Applicant: ROQUETTE FRERES
    Inventors: René SAINT-LOUP, Nicolas JACQUEL
  • Patent number: 10731182
    Abstract: The use of a product for internal dehydration of hydrogenated sugar as a methanogen substrate in a method for biogas production, a composition including a monoanhydrohexitol (M), a dianhydrohexitol (D), and anhydrohexitol polymers (P), and a methanisation method.
    Type: Grant
    Filed: May 26, 2015
    Date of Patent: August 4, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Herve Wyart, Mathias Ibert
  • Publication number: 20200155460
    Abstract: A process for preparing a coagglomerate of crystalline mannitol and of starch includes spray-drying or granulating a mixture of a “solution” of mannitol and of starch, the starch being suspended in the mannitol solution. The coagglomerate has a laser volume mean diameter D4,3 between 60 and 500 ?m, and a mannitol/starch ratio is between 99.5/0.5 and 50/50. The coagglomerate, when mixed with 1.2% of magnesium stearate and formed into a cylindrical tablet with convex faces, a diameter of 13 mm, a thickness of 6 mm, and a weight of 0.734 g, has a crushing strength greater than 120 N. 100 g of said coagglomerate has a flow of between 3 and 15 seconds, measured according to European Pharmacopoeia 5.0, volume 1, 01/2005: 20916, section 2.9.1.6.
    Type: Application
    Filed: January 21, 2020
    Publication date: May 21, 2020
    Applicant: ROQUETTE FRERES
    Inventors: Baptiste BOIT, Alain FRANCOIS, Philippe LEFEVRE, Damien PASSE
  • Patent number: 10640626
    Abstract: A method for producing a composition of diesters, includes a step including the esterification of 1,4:3,6-dianhydrohexitol by a composition of carboxylic acids, the composition including: at least an acid having formula C7H15COOH (X) and an acid having formula C9H19COOH (Y), the mass ratio (X)/(Y) varying between 10/90 and 90/10.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: May 5, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Thierry Feron, Arnaud Verraes, Herve Wyart, Catherine Baurain
  • Publication number: 20200123308
    Abstract: The present invention relates to the use of bis-anhydrohexitol ethers as reactive diluents in a crosslinkable resin, adhesive, coating or composite matrix composition. Not only do these products make it possible to advantageously reduce the viscosity of the mixtures obtained, but they also lead to a very small reduction in the glass transition temperature of the crosslinked mixtures, compared to other reactive diluents, while spectacularly improving the mechanical properties of the latter such as the Young's modulus, the tensile strength, the elongation at break and the toughness.
    Type: Application
    Filed: August 8, 2016
    Publication date: April 23, 2020
    Applicant: Roquette Freres
    Inventors: Clothilde Buffe, Jean-Pierre Pascault, Loureiro Roi Meizoso, Pilar Prendes Gonzales, Senén Paz Abuin
  • Patent number: 10619305
    Abstract: Coating colors having a dextrin having high amylopectin content. When such a dextrin is used in the form of an adhesive, it confers an excellent stability on the adhesive. When the adhesive is subsequently incorporated in the coating color, it makes it possible to adjust the Brookfield viscosity thereof, while providing a good compromise between water retention and rheological behavior at high shear gradient. Also, the use of such dextrin for the manufacture of a coating color. Further, a process for the manufacture of a paper or of a cardboard coated on at least one its face with a coating color, and papers and cardboards thus obtained.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: April 14, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Christian Bouxin, Ludivine Onic, Timo Pajari
  • Patent number: 10612016
    Abstract: The present invention relates to an improved variant of a D-psicose 3-epimerase and its uses.
    Type: Grant
    Filed: October 13, 2017
    Date of Patent: April 7, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Pierre Lanos, Liuming Zhou, Min Jia, Wenli Zhang, Bo Jiang, Wanmeng Mu, Tao Zhang
  • Publication number: 20200085090
    Abstract: A D-allulose syrup including, besides D-allulose, a D-allulose dimer mass content, expressed in terms of dry mass, lower than 1.5%. Also, a method for producing the syrup and to the use thereof for producing food or pharmaceutical products.
    Type: Application
    Filed: January 5, 2018
    Publication date: March 19, 2020
    Applicant: ROQUETTE FRERES
    Inventors: Baptiste BOIT, Geoffrey LACROIX
  • Patent number: 10555543
    Abstract: The present invention relates to the use of pea proteins to substitute at least partially the milk proteins in confectionery traditionally made with milk. It also relates to the confectionery product obtained after this substitution.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: February 11, 2020
    Assignee: Roquette Freres
    Inventors: Pierre Choromanski, Elsa Muller, Thomas Parady
  • Publication number: 20200032224
    Abstract: The present invention relates to a recombinant microbial host for the production of xylitol, the recombinant microbial host containing a nucleic acid sequence encoding a NAD+-specific D-arabitol 4-oxidoreductase (EC 1.1.1.11) using D-arabitol as substrate and producing D-xylulose as product, and a nucleic acid sequence encoding a NADPH-specific xylitol dehydrogenase using D-xylulose as substrate and producing xylitol as product.
    Type: Application
    Filed: September 13, 2019
    Publication date: January 30, 2020
    Applicant: ROQUETTE FRERES
    Inventors: Astrid SCHAEFER, Melanie DIEFENBACHER, Yiming CHANG, Sumire HONDA MALCA, Markus SCHWAB, Sophie DEFRETIN, Tania GERARD, Arnaud HEYSEN, Friederike THOR
  • Patent number: 10533017
    Abstract: A method for producing 1,4:3,6-dianhydrohexitols, including the steps of: a) supplying at least one hexitol, b) dehydrating the hexitol, and c) distillating the dehydration product produced in step b), wherein: the hexitol is supplied in the form of an aqueous solution in step a); and the distillation is carried out by means of a thin-film evaporator in step c).
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: January 14, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Hervé Wyart, Mathias Ibert
  • Patent number: 10526340
    Abstract: A process for manufacturing crystals of 1,4:3,6-dianhydrohexitols, by manufacturing a solution of an internal dehydration product of at least one hexitol, distilling the solution, crystallizing, and wherein the crystallization mother liquors undergo a step of evaporative crystallization. Unlike the prior art processes that seek to recycle the crystallization mother liquors, evaporative crystallization economically and efficiently replaces the succession of steps consisting of at least one concentration, then at least one step of purification by distillation, chromatography, or crystallization.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: January 7, 2020
    Assignee: ROQUETTE FRERES
    Inventors: Hervé Wyart, Thomas Lesur, Mathias Ibert
  • Patent number: 10501560
    Abstract: The invention relates to a starch hydrolysate having a Dextrose Equivalent DE of between 5 and 30 and a specific carbohydrate profile. In particular, the hydrolysate of the invention has improved retrogradation behaviour. The invention also relates to a method for the production of said starch hydrolysate.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: December 10, 2019
    Assignee: Roquette Freres
    Inventors: Mathias Ibert, Aline Lecocq, Pierre Lanos
  • Patent number: 10494614
    Abstract: The present invention relates to a recombinant microbial host for the production of xylitol, the recombinant microbial host containing a nucleic acid sequence encoding an NAD+-specific D-arabitol 4-oxidoreductase (EC 1.1.1.11) using D-arabitol as substrate and producing D-xylulose as product, and a nucleic acid sequence encoding an NADPH-specific xylitol dehydrogenase using D-xylulose as substrate and producing xylitol as product.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: December 3, 2019
    Assignee: ROQUETTE FRERES
    Inventors: Astrid Schaefer, Melanie Diefenbacher, Yiming Chang, Sumire Honda Malca, Markus Schwab, Sophie Defretin, Tania Gerard, Arnaud Heysen, Friederike Thor
  • Patent number: 10479812
    Abstract: The present invention relates to maltooligosaccharides, the content of ?-1,4-glycosidic bonds of which is between 70% and 80% of the total number of 1,4-type glycosidic bonds. The invention also relates to the method for manufacturing these maltooligosaccharides. Said maltooligosaccharides afford all the benefits of fiber-based foods, with an extremely low nutritional value. Such a compromise is particularly advantageous for use in healthy balanced diets, but also in the treatment and/or prevention of the pathology of diabetes. The invention also relates to the use of said maltooligosaccharides in the fields of human food and animal feed.
    Type: Grant
    Filed: February 16, 2016
    Date of Patent: November 19, 2019
    Assignee: Roquette Freres
    Inventors: Pierrick Duflot, Jean-Michel Roturier, Baptiste Boit, Pierre Lanos, Heike Jerosch
  • Patent number: 10478765
    Abstract: A method for in-line control of the integrity of a filtering system implemented during an industrial process including the filtering of a gas through the filtering system, the filtering system including at least one filtering cartridge, the method including at least the following steps: —a measurement step (S1) which involves measuring a pressure difference ?P representative of the pressure loss caused by the filtering system (F1; F2), —a testing step (S2, S3) which involves comparing the measurement (S1) with a predefined high threshold (Sh) and a predefined low threshold (Sb), in such a way as to consider the at least one filtering cartridge to be non-compliant when the pressure difference measured in the measurement step (S1) falls outside a range located between the high threshold (Sh) and the low threshold (Sb).
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: November 19, 2019
    Assignee: ROQUETTE FRERES
    Inventor: David Segard