Ifp Energies Nouvelles

Proteus Gmbh

Centre National De La Recherche Scientifique

Institut Francais Du Pe'trole

Centre National De La Recherche Scientifique-cnrs

Françoise Le Roux

Antoine Margeot

Christophe Ullmann

Sebastien Fort

Cecile Persillon

Sylvie Armand

Celine Ayrinhac

Olivier Bonzom

Lionel Rousseau

Stephanie Pradeau

Jean-Paul Vandecasteele

Francoise Fayolle

Cécile Persillon

Céline Ayrinhac

Stéphanie Pradeau

Sébastien Fort

The present invention relates to the expression and optimization of enzymes involved in the breakdown of lignocellulosic biomass. Disclosed are variants of the exoglucanase 1 of, as well as the use of said variants with improved efficiency in methods for breaking down cellulose and for producing biofuel.

Variants of exoglucanases having improved activity and uses thereof

A process for treating aqueous effluents that contain ethyl-tert-butyl ether (ETBE) to reduce the ETBE concentration is described, characterized in that in the presence of effluents, at least one bacterium that is selected from the group that is formed by Gordona terrae CIP I-1889 and Rhodococcus equi CIP I-2053 and in the presence of at least one bacterium that is selected from the group that is formed by Pseudomonas cepacia CIP 1-2052, Arthrobacter globiformis ATCC 53596, Bacillus coagulans ATCC 53595, Pseudomonas stutzerii ATCC 53602 and Mycobacterium vaccae JOB5 are grown to degrade essentially all of the ETBE. The concentration of ETBE in the effluent is equal to at most 1500 mg/L. Application for the water treatment industry.

Process for bacterial treatment of effluents that contain

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Rueil Malmaison, France

Françoise Le Roux