Patents by Inventor Etienne Jourdier
Etienne Jourdier has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230303991Abstract: The invention relates to the various uses of a fungus strain which belongs to the Trichoderma genus and in which the cel1a gene has been knocked out. The invention relates in particular to a method of producing proteins by a fungus strain which belongs to the Trichoderma genus and in which the cel1a gene has been knocked out, comprising at least two steps: a first step of growth in a batch phase in the presence of at least one carbon growth substrate, and a second step of producing proteins in a fed-batch phase in the presence of a composition comprising at least lactose and a second sugar, the lactose content in the composition representing approximately between 0 and 30% by weight of the total sugar content of the composition, in particular between 5 and 30%.Type: ApplicationFiled: June 21, 2021Publication date: September 28, 2023Applicant: IFP Energies NouvellesInventors: Frédérique Bidard-Michelot, Etienne Jourdier, Vincent Grandperret, Christa Ivanova, Sabine Prigent, Céline Cohen, Antoine Margeot
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Publication number: 20230025155Abstract: The invention relates to a strain of fungus having a reduced viscosity, wherein the ID 78713 (GEL3) gene has been invalidated. The invention also relates to the different uses of this strain, as well as to the method of genetic modification.Type: ApplicationFiled: December 4, 2020Publication date: January 26, 2023Applicant: IFP Energies NouvellesInventors: Frédérique Bidard-Michelot, Etienne Jourdier, Fadhel Ben Chaabane, Thiziri Aouam, Sabine Prigent
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Patent number: 11560581Abstract: A process for producing cellulolytic and/or hemicellulolytic enzymes with a strain of microorganism belonging to the family of filamentous fungi. The process includes growing the fungi in an aqueous culture medium, in the presence of at least one carbon-based growth substrate, in a stirred and aerated bioreactor. It also includes the production of enzymes, starting with the aqueous culture medium in the presence of at least one inductive carbon-based substrate and also inducing the production of hydrophobins. Further, at least a portion of the hydrophobins produced in step (b) are reintroduced into the growth step (a).Type: GrantFiled: November 17, 2020Date of Patent: January 24, 2023Assignee: IFP Energies nouvellesInventors: Mohamed Fadhel Ben Chaabane, Etienne Jourdier, Caroline Aymard, Frederic Augier
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Publication number: 20210147893Abstract: The present invention relates to a process for producing cellulolytic and/or hemicellulolytic enzymes with a strain of microorganism belonging to the family of filamentous fungi, said process comprising the following steps: (a) a first step of growing the fungi in an aqueous culture medium, in the presence of at least one carbon-based growth substrate, in a stirred and aerated bioreactor, (b) a second step of producing enzymes, starting with the aqueous culture medium obtained in the first step (a), in the presence of at least one inductive carbon-based substrate, also inducing the production of hydrophobins, and, in a step (d), at least a portion of the hydrophobins produced in step (b) are reintroduced into the growth step (a).Type: ApplicationFiled: November 17, 2020Publication date: May 20, 2021Applicant: IFP Energies nouvellesInventors: Mohamed Fadhel BEN CHAABANE, Etienne JOURDIER, Caroline AYMARD, Frederic AUGIER
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Patent number: 10787655Abstract: A process for producing oligosaccharides from lignocellulosic biomass, having the following steps: a) pre-treating the biomass in a pre-treatment reactor (1) in order to provide an effluent containing a pre-treated substrate; b) enzymatic hydrolysis of the pre-treated substrate contained in the effluent from step a) in a reactor, in the presence of cellulases such that a hydrolysate containing glucose, cellulases and water is produced; c) removing at least a portion of the hydrolysate from step b) comprising a liquid fraction; d) reducing the water content of said portion of the hydrolysate in step c) such that the liquid fraction of the hydrolysate has a water content of less than 65% by weight with respect to the total weight of the liquid fraction; e) incubating the hydrolysate from step d) at a temperature in the range 40° C. to 70° C. for the time necessary to produce an effluent enriched in oligosaccharides.Type: GrantFiled: November 18, 2013Date of Patent: September 29, 2020Assignees: IFP ENERGIES NOUVELLES, INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, ARGO INDUSTRIES RECHERCHE ET DEVELOPPEMENTInventors: Etienne Jourdier, Caroline Aymard, Fadhel Ben Chaabane
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Publication number: 20190093068Abstract: The object of the invention is a method for modifying the morphology of coagulant type aggregated filamentous fungi comprising: a) the encapsulation of the spores of the said filamentous fungi in the dispersed phase of a water-in-oil emulsion, b) the germination of the encapsulated spores in the said dispersed phase of the emulsion, c) the recovery of the non-aggregated germinated spores, the said emulsion being obtained by using a microfluidic device, d) the culturing of the germinated spores in a liquid medium.Type: ApplicationFiled: September 26, 2018Publication date: March 28, 2019Applicant: IFP Energies nouvellesInventors: Marion DROUGARD, Estelle ANDRE, Etienne JOURDIER, Mohamed Fadhel BEN CHAABANE, Nicolas PANNACCI
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Patent number: 10214734Abstract: The invention relates to a process for the production of an enzymatic cocktail from a cellulolytic microorganism producing cellulases and/or hemi-cellulases, comprising: a step for the production of enzymes with a medium being obtained containing enzymes and a microorganism must, said must is separated, or not separated, from the liquid containing said enzymes, a step of cooling said must to a temperature below the temperature of the enzyme production step and for a time such that the beta-glucosidase concentration of the liquid originating from the cooling step is greater than that of the liquid originating from the enzyme production step, and/or the solid volume/total volume ratio is less than said ratio for the enzyme production step, and an enzymatic cocktail is obtained at the end of the cooling step.Type: GrantFiled: July 27, 2015Date of Patent: February 26, 2019Assignee: IFP Energies nouvellesInventors: Fadhel Ben Chaabane, Etienne Jourdier, Celine Cohen, Bernard Chaussepied
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Publication number: 20170211051Abstract: The invention relates to a process for the production of an enzymatic cocktail from a cellulolytic microorganism producing cellulases and/or hemi-cellulases, comprising: a step for the production of enzymes with a medium being obtained containing enzymes and a microorganism must, said must is separated, or not separated, from the liquid containing said enzymes, a step of cooling said must to a temperature below the temperature of the enzyme production step and for a time such that the beta-glucosidase concentration of the liquid originating from the cooling step is greater than that of the liquid originating from the enzyme production step, and/or the solid volume/total volume ratio is less than said ratio for the enzyme production step, and an enzymatic cocktail is obtained at the end of the cooling step.Type: ApplicationFiled: July 27, 2015Publication date: July 27, 2017Applicant: IFP Energies nouvellesInventors: Fadhel BEN CHAABANE, Etienne JOURDIER, Celine COHEN, Bernard CHAUSSEPIED
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Publication number: 20150344856Abstract: A process for producing oligosaccharides from lignocellulosic biomass, having the following steps: a) pre-treating the biomass in a pre-treatment reactor (1) in order to provide an effluent containing a pre-treated substrate; b) enzymatic hydrolysis of the pre-treated substrate contained in the effluent from step a) in a reactor, in the presence of cellulases such that a hydrolysate containing glucose, cellulases and water is produced; c) removing at least a portion of the hydrolysate from step b) comprising a liquid fraction; d) reducing the water content of said portion of the hydrolysate in step c) such that the liquid fraction of the hydrolysate has a water content of less than 65% by weight with respect to the total weight of the liquid fraction; e) incubating the hydrolysate from step d) at a temperature in the range 40° C. to 70° C. for the time necessary to produce an effluent enriched in oligosaccharides.Type: ApplicationFiled: November 18, 2013Publication date: December 3, 2015Applicants: IFP ENERGIES NOUVELLES, INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, ARGO INDUSTRIES RECHERCHE ET DEVELOPPEMENTInventors: Etienne JOURDIER, Caroline AYMARD, Fadhel BEN CHAABANE
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Publication number: 20150336999Abstract: The present invention concerns a process for the production of sophorose starting from sophorolipid, in which a step for the hydrolysis of sophorolipid is carried out in an aqueous medium in the presence of an acidic compound.Type: ApplicationFiled: September 26, 2013Publication date: November 26, 2015Applicant: IFP Energies nouvellesInventors: Etienne JOURDIER, Fadhel BEN CHAABANE
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Publication number: 20140302587Abstract: The present invention concerns a process for the production of cellulases using a strain of a filamentous fungus in a stirred, aerated bioreactor, comprising at least two growth steps: the first growth step in the presence of at least one carbonaceous growth substrate in batch phase with a concentration of carbonaceous growth substrate in the range 10 to 80 g/L; a second step for growth and production in the presence of at least one inducer carbonaceous substrate in fed batch phase in the presence of a limiting flow of carbon source in the range 50 to 140 mg per gram of cells per hour.Type: ApplicationFiled: August 2, 2012Publication date: October 9, 2014Applicants: IFP ENERGIES NOUVELLES, AGRO INDUSTRIES RECHERCHE ET DEVELOPPEMENT, INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUEInventors: Fadhel Ben Chaabane, Etienne Jourdier, Celine Cohen, Bernard Chaussepied