Roquette Freres | Date: 2016-10-13
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 | 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 188.8.131.52) 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 and Ingredia | Date: 2015-03-26
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.
Roquette Freres | Date: 2015-06-15
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.
Roquette Freres | Date: 2015-05-20
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.
Roquette Freres | Date: 2015-05-05
A thermoplastic polyester includes: at least one tetrahydrofuran-dimethanol diol motif (A); at least one furandicarboxylic acid motif (B); and at least one aliphatic diol motif (C). A method for producing polyester including the motifs (A), (B) et (C) is also described.
Roquette Freres | Date: 2015-05-26
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.
Roquette Freres | Date: 2015-07-16
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 | 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.
Roquette Freres | Date: 2015-01-21
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. The compositions obtained according to the process are rich in diepoxy derivatives of isosorbide to the detriment of monoepoxy derivatives, only the first participating in the formation of the three-dimensional network. The crosslinking density is therefore increased, thereby making it possible to obtain a material which is more chemically resistant and mechanically stronger and which has a higher glass transition temperature (Tg), compared with the same materials obtained with bis-anhydrohexitol ether compositions according to the prior art.