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Roquette Freres patents


Recent patent applications related to Roquette Freres. Roquette Freres is listed as an Agent/Assignee. Note: Roquette Freres may have other listings under different names/spellings. We're not affiliated with Roquette Freres, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "R" | Roquette Freres-related inventors


 new patent  Method for producing maltitol, with an increased yield

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.. . ... Roquette Freres

Biological assay of peptidoglycans

The present invention relates to a biological method for assaying peptidoglycans (pgn) in a sample, particularly a sample of glucose polymers. The pgn assay includes: a) treating the glucose polymer sample by sonication, heating, and/or alkalizing; b) placing the treated sample or a dilution thereof in contact with a recombinant cell expressing an exogenous tlr2 (toll-like receptor 2) and a reporter gene directly dependent on the signaling pathway associated with the tlr2. ... Roquette Freres

Variant of d-psicose 3-epimerase and uses thereof

The present invention relates to an improved variant of a d-psicose 3-epimerase and its uses.. . ... Roquette Freres

High-viscosity polyester with improved impact properties

The invention relates to a thermoplastic polymer comprising at least one 1,4:3,6-dianhydrohexitol unit (a), at least one alicyclic diol unit (b) other than the 1,4:3,6-dianhydrohexitol units (a) and at least one high-viscosity terephthalic acid unit (c).. . ... Roquette Freres

Optimised method for decontaminating the starch used as a raw material for obtaining glucose polymers intended for peritoneal dialysis

The present invention concerns a method for decontaminating the starches used as a raw material for the preparation of glucose polymers intended for peritoneal dialysis, the method comprising the following steps: —preparing a waxy corn starch, —placing the waxy starch in suspension at a concentration of between 20 and 40% dry matter in a process water at a ph of between approximately 5 and approximately 6, in particular approximately 5.5, —treating the starch suspension with a peracetic acid solution at a concentration equal to or between 100 and 500 ppm, preferably 300 ppm, —dewatering the starch, then dissolving in demineralised water adjusted to a ph of between approximately 5 and approximately 6, in particular approximately 5.5 and at a concentration of between 20 and 40% dry matter, —increasing the temperature to 107° c., then adding an alpha-amylase for 15 minutes, —optionally, treating with an enzymatic preparation having detergent and clarification properties, —filtering the suspension on a bed of diatoms, —treating with an active carbon having a very high adsorption capacity, of pharmaceutical quality, and of “microporous” porosity, —treating with a second active carbon of “mesoporous” porosity, —optionally, passing over a macroporous adsorbent polymer resin, having a porosity greater than 100 angstroms, —optionally, continuous 5000 da ultrafiltration, —safety filtration through a sterile filter having a porosity of 0.22 μm.. . ... Roquette Freres

Fermentative method for bleaching biomass of chlorella protothecoides

The invention relates to a method for bleaching a biomass of chlorella protothecoides microalgae that is rich in protein, said biomass being produced by fermentation, characterised in that it comprises: choosing to produce the microalga biomass under heterotrophic conditions and under continuous fermentation; and varying the colouring of said biomass by monitoring the ratio of the μ/μmax growth rates.. . ... Roquette Freres

Use of particular combinations of carbohydrates for stabilizing proteins, and protein compositions containing such combinations

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. ... Roquette Freres

Fiber-rich maltooligosaccharides having low glucose bioavailability, method of manufacture thereof and use thereof in human food and animal feed

The present invention relates to maltooligosaccharides, the content of α-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. ... Roquette Freres

Process for packaging a dianhydrohexitol, aqueous solution of dianhydrohexitol packaged and uses thereof

The present invention relates to a process for packaging a dianhydrohexitol, in the form of an aqueous solution in a container comprising a metal-based layer. It also relates to the container containing the aqueous solution of dianhydrohexitol.. ... Roquette Freres

Biomass of the microalgae schizochytrium mangrovei and method for preparing same

The invention concerns a strain of shizochytrium mangrovei filed on 22 nov. 2012 with the cncm as number 1-4702 having the ability to produce a high quantity of docosahexaenoic acid (or dha) and palmitic acid, the methods for producing the corresponding biomass containing said lipid compounds of interest, and the biomass containing the products and compositions prepared from this strain.. ... Roquette Freres

Process for enriching the biomass of microalgae of the thraustochytrium genus with dha and with arg and glu amino acids

. . . . . . The present invention relates to a process for enriching a biomass of microalgae of the thraustochytrium genus with dha and with arginine and glutamic acid amino acids, characterized in that it comprises a step aimed at limiting the rate of growth of the microalga while at the same time maintaining or continuously introducing a source of nitrogen in or into the fermentation medium.. . ... Roquette Freres

Composition of soluble indigestible fibers and of microalgae, used in the well-being field

The subject matter of the present invention is the use of soluble indigestible fibre for inducing lysis of the cell walls of eukaryotic microalgae in the lumen of the intestine of an omnivorous or carnivorous animal comprising an intestinal flora and also for synergistically increasing the effect of the indigestible fibre in the induction of the growth of the intestinal flora of an omnivorous or carnivorous animal. The subject matter of the invention is also the composition intended for this use and for a method of improving the health or of food supplementation.. ... Roquette Freres

Method for recovering succinic acid crystals using surfactants during crystallisation, and resulting crystals

. . The invention relates to a method for producing succinic acid crystals, comprising double crystallisation and the use of at least one surfactant during the first crystallisation step. The invention also relates to the succinic acid crystals obtained from a fermentation medium, characterised in that they have a colour index b, measured in the reference system l, a, b, that is less than or equal to 1.00, preferably less than or equal to 0.90, and, better still, less than or equal to 0.80.. ... Roquette Freres

Method for the valorisation of yeast biomass resulting from the production of ethanol

The invention relates compositions rich in yeast proteins, methods for producing processing wheat for recovery of the compositions rich in yeast proteins, and uses thereof as animal feed.. . ... Roquette Freres

11/23/17 / #20170335055

Method for producing a polyester containing at least one 1,4:3,6-dianhydrohexitol unit with improved colouring

The invention concerns a method for producing a polyester containing at least one 1,4:3,6-dianhydrohexitol unit comprising:·a step of introducing, into a reactor, monomers comprising at least one monomer (a) that is a diacid or a diester and at least one monomer (b) that is a 1,4:3,6-dianhydrohexitol;·a step of introducing, into the reactor, a catalytic system comprising either a catalyst comprising the element germanium and a catalyst comprising the element aluminum, or a catalyst comprising the elements germanium and aluminum, or a mixture of said two catalysts;·a step of polymerising said monomers to form the polyester;·a step of recovering a polyester composition comprising the polyester and the catalytic system. The invention also concerns a polyester composition containing a catalytic system comprising either a catalyst comprising the element germanium and a catalyst comprising the element aluminum, or a catalyst comprising the elements germanium and aluminum, or a mixture of said two catalysts, and the use of same to reduce the colouring of the polyester.. ... Roquette Freres

11/09/17 / #20170321043

Composition of soluble indigestable fibers and of eukaryotic organisms with a polysaccharide wall, used, in the well-being field

The invention relates to the use of branched maltodextrins for inducing lysis of the cell walls of eukaryotic organisms having a polysaccharide wall in the lumen of the intestine of an omnivorous or carnivorous animal comprising an intestinal flora and also for synergistically increasing the effect of the branched maltodextrins in the induction of the growth of the intestinal flora of an omnivorous or carnivorous animal. The invention also relates to the composition intended for this use and to a method for improving health or for food supplementation.. ... Roquette Freres

11/09/17 / #20170321036

Isosorbide epoxide diesters, and the use thereof as a plasticizer in pvc compositions

The invention relates to isosorbide epoxide esters having formulas (i), (ii), and (iii), to the mixtures thereof, and to the use thereof as an additive in pvc compositions, particularly as a plasticizer.. . ... Roquette Freres

10/12/17 / #20170291981

Method for preparing thermoplastic polyurethane pellets

The present invention relates to a method for manufacturing thermoplastic polyurethane pellets by means of reactive extrusion of: a long macrodiol with a molecular weight of 500 to 3000 g/mol; a diisocyanate; at least one chain extender comprising a dianhydrohexitol; and a polymerization catalyst. The invention also relates to the resulting thermoplastic polyurethane pellets.. ... Roquette Freres

10/05/17 / #20170281550

Compressible and free-flow co-agglomerates of mannitol and granular starch

Co-agglomerates of crystalline mannitol and granular starch, characterised in that they have a compressibility, as determined according to a test a, higher than 120 n, and preferably of 200 to 450 n, and a flow time, as determined according to a test b, of 3 to 15 seconds, and preferably of 4 to 8 seconds.. . ... Roquette Freres

09/28/17 / #20170275387

Dextrin copolymer with styrene and an acrylic ester, manufacturing method thereof, and use thereof for paper coating

Disclosed is a copolymer of a dextrin and at least two hydrophobic monomers made up of styrene and at least one straight or branched acrylic c1-c4 ester. The invention also relates to the manufacturing method thereof and to the use thereof in paper coating. ... Roquette Freres

09/28/17 / #20170275295

Method for conditioning a dianhydrohexitol, aqueous solution of conditioned dianhydrohexitol, and uses thereof

The invention relates to a method for conditioning a dianhydrohexitol in the form of an aqueous solution in a container comprising a polyolefin-based layer. The invention also relates to the aqueous solution of thus-conditioned dianhydrohexitol, and to all the uses thereof, in particular those intended for food and pharmaceutical purposes.. ... Roquette Freres

08/10/17 / #20170226319

Liquid plasticising composition

Disclosed is a composition that is liquid at ambient temperature and that includes: •at least one diester of 1,4:3,6-dianhydrohexitol(a); •at least one compound (b), chosen from the modified fatty acids and modified fatty acid esters, the compound (b) bearing at least one epoxy and/or acetyl function; the liquid composition including at least 60% by weight of constituents (a) and (b). The composition is useful for plasticising polymers.. ... Roquette Freres

07/27/17 / #20170208849

Sugar compositions for tableting by direct compression

The present invention relates to directly compressible compositions comprising more than 30% by weight of allulose, and to tablets obtainable thereof.. . ... Roquette Freres

07/06/17 / #20170190832

Thermoplastic aromatic polyesters comprising tetrahydrofuran-dimethanol motifs

A thermoplastic polyester includes: at least one tetrahydrofuran-dimethanol diol motif (a); and at least one aromatic acid motif (b) selected from terephthalic acid, isophthalic acid, phthalic acid, 2,6-naphthalene dicarboxylic acid and 1,4-naphthalene dicarboxylic acid, the glass transition temperature thereof being higher than, or equal to, 50° c. A method for producing polyester including the motifs (a) and (b) is also described.. ... Roquette Freres

06/01/17 / #20170152294

Method for extracting soluble proteins from microalgal biomass

Method for preparing a protein isolate of the biomass of microalgae of the genus chlorella, includes: supplying a microalgal biomass produced by fermentation; optionally washing the biomass so as to eliminate soluble interstitial compounds, thermal permeabilization of the biomass at a temperature between 50 and 150° c., for between 10 seconds and 5 minutes; eliminating the thus permeabilized biomass by a solid-liquid separation technique selected from the group consisting of frontal or tangential filtration, flocculation and centrifuging, more specifically multi-stage centrifuging, in order to obtain a soluble fraction; optionally recovering and clarifying the soluble fraction thus obtained by microfiltration in such a way as to remove residual insoluble elements therefrom; ultrafiltration of the soluble fraction on a membrane with a cut-off threshold lower than 5 kda, preferably between 1 and 5 kda, in order to produce a soluble protein isolate; then evaporation, pasteurization and atomization of the protein isolate.. . ... Roquette Freres

05/18/17 / #20170137477

Method for extracting soluble proteins from microalgal biomass

A method for preparing a protein isolate of the biomass of microalgae of the genus chlorella, includes the following steps: supplying a microalgal biomass produced by fermentation, washing the biomass so as to eliminate the soluble interstitial compounds and concentrating the biomass, mechanically grinding the washed and concentrated biomass in a horizontal ball grinder-type system in order to produce an emulsion, destructuring the emulsion thus produced, triple-phase separation so as to separate the soluble fraction from the fractions containing the lipids and the cell debris, recovery of the soluble fraction thus produced in order to produce the soluble protein isolate, then evaporation, pasteurization and atomization of the protein isolate.. . ... Roquette Freres

05/18/17 / #20170136470

Agitator shaft for a grinding mill

An agitator shaft (1) for a grinding mill, including: —an axle (2) intended to be driven in rotation, —a succession of flat agitator elements (3) and tubular spacers (4) mounted in alternation on the axle and in a stack along the axle (2), —end stops (5, 6), secured to the axle, that keep the stack of agitator elements and spacers under compression, characterized in that the tubular spacers (4) have orifices allowing the free circulation of material and fluids from the outside of the agitator shaft to the inside, and vice versa.. . ... Roquette Freres

05/18/17 / #20170135371

Novel sweetening composition

A sweetening composition including from 80% to 95% by weight of crystalline pulverulent sorbitol and having an enthalpy of at most 150 j/g, a low specific surface area, a particular particle size and an excellent flow ability. Also the process for producing this novel sweetening composition, and the use of this sweetening composition in a method for preparing chewing gums and tablets.. ... Roquette Freres

05/18/17 / #20170135370

Novel composition of a confectionery product

A novel composition of a confectionery or pharmaceutical product, characterised in that it includes 30 to 70 wt % of a bulking agent other than maltitol having a specific surface area smaller than 0.5 m2/g and also having a reduced amount of base gum, with no negative effect on the organoleptic properties, relative to the prior art products. Also, a method for using the novel composition in the production of a chewing gum characterised in that it enables the amount of base gum in said products to be considerably reduced.. ... Roquette Freres

05/18/17 / #20170135368

Novel fat-free confectionery item

Disclosed is a novel confectionery item, and more particularly a chewing gum of which the fat content has been reduced or totally eliminated. This reduction or elimination of the fat makes it possible to obtain a confectionery item that has a reduced caloric load, while keeping a texture similar to the same confectionery item containing fat. ... Roquette Freres

05/11/17 / #20170130209

Production of xylitol from glucose by a recombinant strain

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.. . ... Roquette Freres

05/04/17 / #20170121697

Method for maufacturing a stable aqueous solution of beta-amylase, aqueous solution obtained and uses thereof

The present invention relates to a method for stabilising an aqueous solution of β-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 β-amylase over time. ... Roquette Freres

05/04/17 / #20170121317

Method for producing compositions of furan glycidyl ethers, compositions produced and uses of same

A method for producing a composition of glycidyl ethers synthesised from furan derivatives (furan glycidyl ethers), partly characterized by azeotropic distillation performed under reduced pressure and without the addition of a catalyst. Such products are used to produce epoxy resins, with the aim of forming a three-dimensional macromolecular network. ... Roquette Freres

03/23/17 / #20170081699

Biological dosage of peptidoglycans

The present invention relates to a biological method for the dosage of peptidoglycans in a sample, especially a sample of glucose polymers.. . ... Roquette Freres

03/23/17 / #20170081688

Optimized method for decontaminating production of glucose polymers and glucose polymer hydrolyzates

The present invention relates to a method for decontaminating glucose polymers or the hydrolysates of the pro-inflammatory molecules thereof. Said method includes a) providing glucose polymers or the hydrolysates thereof, b) optionally, detecting or assaying the pro-inflammatory molecules in the glucose polymers or the hydrolysates thereof provided in step a), and c) carrying out the following purifying steps: i. ... Roquette Freres

03/23/17 / #20170081630

Method for thermal permeabilization of a microalgae biomass

Disclosed is a method for thermal permeabilization of the biomass of microalgae of the chlorella genus in such a way as to recover therefrom the soluble fractions which are enriched in particular with proteins and with oligosaccharides, including the following steps: provision of a microalgae biomass; heat treatment in steps at a temperature of between 60 and 130° c., preferably 60 and 90° c., for 1 to 5 minutes; cooling to a temperature of between 0° and 10° c.; and recovery, concentration and enrichment of the soluble fractions from which the microalgae cells have been removed.. . ... Roquette Freres

02/16/17 / #20170043290

Method for in-line control of the integrity of a filtering system

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 Δp 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).. . ... Roquette Freres

02/09/17 / #20170037073

Rectangular parallelepipedal maltitol

The invention concerns maltitol crystals, characterized in that they have a rectangular parallelepipedal shape and have a length to width dimensional ratio in the range 1.8 to 5.3, preferably 3±0.7, and a process for producing them.. . ... Roquette Freres

02/02/17 / #20170030895

Methods for detecting contaminants in solutions containing glucose polymers

The invention relates to a method for detecting contaminants of glucose polymers, said contaminants being capable of acting in synergy with one another so as to trigger an inflammatory reaction, characterized in that it comprises an in vitro inflammatory response test using modified cell lines.. . ... Roquette Freres

01/05/17 / #20170002132

Process for producing isohexide glycidyl ethers, products thus obtained, and uses thereof

A process for producing bis-anhydrohexitol ether compositions and in particular isohexide glycidyl ether compositions, one of the originalities of which is azeotropic distillation carried out under reduced pressure. Such compositions are used to produce epoxy resins, the function thereof being to form a three-dimensional macromolecular network. ... Roquette Freres








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