Valagro Carbone Renouvelable Poitou-Charentes

Centre National De La Recherche Scientifique

Université De Poitiers

Frederic Bataille

Jacques Barbier

Thierry Ferreira

Cedric Dever

Stephane Soum

Alexandre Briand

Antoine Piccirilli

The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer.

Process for preparing a polymer/biological entities alloy

A method for obtaining polyphenols from a vegetable raw material containing same, includes at least the following steps: optionally drying the raw material containing the polyphenols; crushing the raw material; defibrating the crushed raw material in an extruder in the presence of a solvent; separating the soluble phase from the fibers; and recovering the soluble phase, crude extract, containing the polyphenols.

Method for obtaining polyphenols from a vegetable raw material containing same

A recycled textile cotton used for producing ethanol by the execution of a process that includes a step of pretreatment of textile cotton by pulping in an extruder, which may or may not involve a grinding step prior to pulping in the extruder, a step of enzymatic hydrolysis, a step of filtration(s), and a step of fermentation.

Process for producing ethanol from textile cotton

A process for producing from a lignocellulosic raw material of (i) an intermediate product that is intended for the production of ethanol, containing polysaccharides, cellulose and hemicelluloses, and (ii) a product containing lignin in an aqueous solution without sulfur residue, this lignin could be precipitated. The process includes a step of pulping the raw material in an extruder at a temperature of between 60&#xb0; C. and 180&#xb0; C. and in the presence of a quantity of water that represents between 200% and 450% of the mass of said raw material and in the presence of a strong base at a concentration of between 0.5% and 4% relative to the volume of water.

Growing community of inventors

Poitiers, France

Frederic Bataille