Patents by Inventor Maud Petit

Maud Petit 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).

  • strains expressing exogenous glucoamylase and xylanase enzymes and their use in the production of bioethanol
    Patent number: 11473072
    Abstract: Strains of Saccharomyces cerevisiae yeast that are genetically modified so as to co-express a gene coding a glucoamylase of fungal origin, a gene coding a glucoamylase of Saccharomyces cerevisiae var. diastaticus, and a gene coding a xylanase of fungal origin. The production yield of bioethanol through these strains is greater than that of strains that are otherwise identical but that do not include the gene coding the xylanase of fungal origin. Also, a method for obtaining these yeasts, as well as the use of these yeasts in the production of bioethanol.
    Type: Grant
    Filed: July 2, 2019
    Date of Patent: October 18, 2022
    Assignee: LESAFFRE ET COMPAGNIE
    Inventors: Georges Pignede, Maud Petit, Benoît Thomas, Sébastien Hulin
  • SACCHAROMYCES CEREVISIAE STRAINS EXPRESSING EXOGENOUS GLUCOAMYLASE AND XYLANASE ENZYMES AND THEIR USE IN THE PRODUCTION OF BIOETHANOL
    Publication number: 20210261934
    Abstract: Strains of Saccharomyces cerevisiae yeast that are genetically modified so as to co-express a gene coding a glucoamylase of fungal origin, a gene coding a glucoamylase of Saccharomyces cerevisiae var. diastaticus, and a gene coding a xylanase of fungal origin. The production yield of bioethanol through these strains is greater than that of strains that are otherwise identical but that do not include the gene coding the xylanase of fungal origin. Also, a method for obtaining these yeasts, as well as the use of these yeasts in the production of bioethanol.
    Type: Application
    Filed: July 2, 2019
    Publication date: August 26, 2021
    Applicant: LESAFFRE ET COMPAGNIE
    Inventors: Georges PIGNEDE, Maud PETIT, Benoît THOMAS, Sébastien HULIN
  • Yeast strains co-expressing exogenous glucoamylases, the method for obtaining said yeast strains and the use thereof to produce bioethanol
    Patent number: 10947519
    Abstract: The present application relates to improved Saccharomyces cerevisiae yeast strains that co-express a gene encoding a glucoamylase of fungal origin and a gene encoding the glucoamylase of Saccharomyces cerevisiae var. diastaticus. The present invention also relates to a method for obtaining these yeast strains involving a) genetically modifying a Saccharomyces cerevisiae yeast to co-express a gene encoding a glucoamylase of fungal origin and a gene encoding the glucoamylase of Saccharomyces cerevisiae var. diastaticus; b) culturing and fermenting the strain obtained in step a) on a dextrin medium; c) selecting the strains having fermentation kinetics at least equal to or greater than those obtained with the strain deposited at the CNCM [French National Collection of Microorganism Cultures] under number I 4999 under the same conditions. The yeast strains according to the invention are of particular interest in producing bioethanol.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: March 16, 2021
    Assignee: LESAFFRE ET COMPAGNIE
    Inventors: Maud Petit, Georges Pignede, Jean-Michel Bavouzet, Benoît Thomas
  • YEAST STRAINS CO-EXPRESSING EXOGENOUS GLUCOAMYLASES, THE METHOD FOR OBTAINING SAID YEAST STRAINS AND THE USE THEREOF TO PRODUCE BIOETHANOL
    Publication number: 20190292532
    Abstract: The present application relates to improved Saccharomyces cerevisiae yeast strains that co-express a gene encoding a glucoamylase of fungal origin and a gene encoding the glucoamylase of Saccharomyces cerevisiae var. diastaticus. The present invention also relates to a method for obtaining these yeast strains involving a) genetically modifying a Saccharomyces cerevisiae yeast to co-express a gene encoding a glucoamylase of fungal origin and a gene encoding the glucoamylase of Saccharomyces cerevisiae var. diastaticus; b) culturing and fermenting the strain obtained in step a) on a dextrin medium; c) selecting the strains having fermentation kinetics at least equal to or greater than those obtained with the strain deposited at the CNCM [French National Collection of Microorganism Cultures] under number I 4999 under the same conditions. The yeast strains according to the invention are of particular interest in producing bioethanol.
    Type: Application
    Filed: August 23, 2016
    Publication date: September 26, 2019
    Inventors: Maud PETIT, Georges PIGNEDE, Jean-Michel BAVOUZET, Benoît THOMAS
  • Endoglucanase variants having improved activity, and uses of same
    Patent number: 10000780
    Abstract: Disclosed are variants of Trichoderma reesei endoglucanase I, and methods for using such variants to break down cellulose and produce biofuel.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: June 19, 2018
    Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
    Inventors: Antoine Margeot, Yves Benoit, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Maud Petit, Marine Lenon
  • Endoglucanase variants having improved activity, and uses of same
    Patent number: 9920308
    Abstract: The present invention relates to the expression and optimization of enzymes involved in the breakdown of lignocellulosic biomass. The present invention relates more specifically to variants of Trichoderma reesei endoglucanase II, and the use of said variants having an improved performance in methods of breaking down cellulose and producing biofuel.
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: March 20, 2018
    Assignees: IFP ENERGIES NOUVELLES, PROTEUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS
    Inventors: Antoine Margeot, Senta Blanquet, Cecile Persillon, Celine Ayrinhac, Christophe Ullmann, Olivier Bonzom, Sebastien Fort, Sylvie Armand, Marine Lenon, Maud Petit
  • ENDOGLUCANASE VARIANTS HAVING IMPROVED ACTIVITY, AND USES OF SAME
    Publication number: 20160298156
    Abstract: The present invention relates to the expression and optimisation of enzymes involved in the breakdown of lignocellulosic biomass. The present invention relates more specifically to variants of Trichoderma reesei endoglucanase I, and the use of said variants having an improved performance in methods of breaking down cellulose and producing biofuel.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 13, 2016
    Inventors: Antoine MARGEOT, Yves BENOIT, Cécile PERSILLON, Céline AYRINHAC, Christophe ULLMANN, Olivier BONZOM, Sébastien FORT, Sylvie ARMAND, Maud PETIT, Marine LENON
  • ENDOGLUCANASE VARIANTS HAVING IMPROVED ACTIVITY, AND USES OF SAME
    Publication number: 20160289661
    Abstract: The present invention relates to the expression and optimisation of enzymes involved in the breakdown of lignocellulosic biomass. The present invention relates more specifically to variants of Trichoderma reesei endoglucanase II, and the use of said variants having an improved performance in methods of breaking down cellulose and producing biofuel.
    Type: Application
    Filed: November 21, 2014
    Publication date: October 6, 2016
    Inventors: Antoine MARGEOT, Senta BLANQUET, Cecile PERSILLON, Celine AYRINHAC, Christophe ULLMANN, Olivier BONZOM, Sebastien FORT, Sylvie ARMAND, Marine LENON, Maud PETIT
  • Polypetide with enhanced beta-glucosidase activity at low temperature
    Patent number: 9382555
    Abstract: The invention relates to a polypeptide which has enhanced beta-glucosidase activity at a temperature of between about 30° C. and about 35° C.
    Type: Grant
    Filed: September 4, 2013
    Date of Patent: July 5, 2016
    Assignees: IFP ENERGIES NOUVELLES, PROTÉUS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS
    Inventors: Antoine Margeot, Hugues Mathis, Celine Ayrinhac, Christophe Ullmann, Cecile Persillon, Sebastien Fort, Sylvie Armand, Maud Petit
  • Polypetide with Reinforced Beta-Glucosidase Activity at Low Temperature
    Publication number: 20150218593
    Abstract: The invention relates to a polypeptide which has enhanced beta-glucosidase activity at a temperature of between about 30° C. and about 35° C.
    Type: Application
    Filed: September 4, 2013
    Publication date: August 6, 2015
    Inventors: Antoine Margeot, Hugues Mathis, Céline Ayrinhac, Christophe Ullmann, Cécile Persillon, Sébastien Fort, Sylvie Armand, Maud Petit