Institut Francais Du Pe'trole

Institut National De La Recherche Agronomique

Gaz De France

Jean-Pierre Belaïch

Peter Jan Punt

Marcel Asther

Frédéric Monot

Eric Record

Anthony Levasseur

David Navarro

Marie-Laure Fardeau

Jean-Paul Peillex

Andre Pavia

The invention relates to the use of fusion proteins between at least two plant cell-wall degrading enzymes, the enzymes being such that they do not contain a C-terminal carbohydrate-binding-molecule (CBM), and optionally a CBM, the enzymes and CBM being recombinant proteins corresponding to native proteins in fungi, or mutated forms thereof, for carrying out processes of plant cell-wall degradation in the frame of the preparation, from plants or vegetal by-products, of compounds of interest located in plant cell-wall, or in the frame of the bleaching of pulp and paper.

Fusion proteins between plant cell-wall degrading enzymes, and their uses

This invention relates to a high-yield methane production process, comprising cultivating on a culture medium containing a source of nitrogen and assimilable salts, the methanogenic bacterium Methanobacterium thermoautotrophicum or any other methanogenic bacterium having the same physiological growth properties, with a forced supply of gaseous H.sub.2 /CO.sub.2 mixture.

High-yield methane production process by culture of Methanobacterium

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Marseilles, France

Jean-Pierre Belaïch