Roquette Freres

La Roquette-sur-Siagne, France

Roquette Freres

La Roquette-sur-Siagne, France
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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.


Patent
Roquette Freres | Date: 2015-03-18

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.


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. treatment using an enzymatic preparation having detergent properties and clarification properties; ii. treatment using a pharmaceutical-grade activated carbon with very high adsorption properties and micropore porosity; iii. optionally, treatment using a second activated carbon with mesopore porosity; iv. passing them over a macroporous adsorbent polymer resin having porosity greater than 100 Angstroms; and v. continuous ultrafiltration at 5 kDa.


Patent
Roquette Freres | Date: 2015-02-05

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


Patent
Roquette Freres | Date: 2015-05-13

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).


Patent
Roquette Freres | Date: 2015-06-17

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.


A novel method for producing an assembly of at least one milk protein and at least one plant protein in different food matrices or compositions. The assembly of at least one milk protein and at least one plant protein produced in this way, and the use of the assembly are also described.


The present invention relates to a method for stabilising an aqueous solution of -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 -amylase over time. Another aim of the present invention consists of using the cocktail for the specific function of maintaining the enzymatic activity of the -amylase. Another aim of the present invention is to provide an aqueous solution of -amylase containing the aforementioned cocktail. A final aim of the present invention consists of using the -amylase aqueous solution in bread-making, in malting, as a food additive, as a digestive agent, for sweetener production, in pharmacy and, finally, for maltose and maltose-enriched syrup production.


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. With the compositions of the invention the cross-linking density of the network is increased, allowing the production of a material which is more resistant, both chemically and mechanically, and has a higher glass transition temperature (Tg) than the same materials produced with compositions of furan glycidyl ethers synthesized at atmospheric pressure according to prior art.


Patent
Roquette Freres | Date: 2016-07-25

Coagglomerates of mannitol, whose laser volume-average diameter D4,3 is between 1 and 200 m, and of granular starch, are characterized in that they have a disintegration behaviour determined according to a test A such that the relaxation time measured is between 30 and 100 seconds and the swelling force is between 0.8 and 3.0 N.

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