A method of producing fatty acids for biofuel, biodiesel,...

C - Chemistry – Metallurgy – 11 – B

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C11B 1/00 (2006.01) C10L 1/02 (2006.01) C11C 1/00 (2006.01) C12P 7/64 (2006.01) C12P 19/02 (2006.01)

Patent

CA 2726184

The present invention relates to a method of producing fatty acids, by (i) inoculating a mixture of at least one of cellulose, hemi--cellulose, and lignin with at least one microorganism strain that produces one or more cellulases, hemicellulases and laccase, that hydrolyze at least one of cellulose, hemicellulose and lignin, under conditions to produce at least one of glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars; (ii) inhibiting growth of said at least one microorganism strain; (iii) inoculating the mixture of step (ii) with at least one algae strain that metabolizes said at least one of glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars, under conditions so that said at least one algae strain produces one or more fatty acids; and optionally (iv) recovering said one or more fatty acids from said at least one algae strain.

La présente invention porte sur un procédé de production d'acides gras, par (i) inoculation d'un mélange d'au moins l'une parmi la cellulose, l'hémicellulose et la lignine avec au moins une souche de microorganisme qui produit une ou plusieurs cellulases, hémicellulases et laccase, qui hydrolysent au moins l'une parmi la cellulose, l'hémicellulose et la lignine, dans des conditions pour produire au moins l'un parmi le glucose, le cellobiose, le xylose, le mannose, le galactose, le rhamnose, l'arabinose ou d'autres sucres d'hémicellulose; (ii) inhibition de la croissance de ladite au moins une souche de microorganisme; (iii) inoculation du mélange de l'étape (ii) avec au moins une souche d'algues qui métabolise ledit au moins un parmi le glucose, le cellobiose, le xylose, le mannose, le galactose, le rhamnose, l'arabinose ou d'autres sucres d'hémicellulose, dans des conditions de telle sorte que ladite au moins une souche d'algues produit un ou plusieurs acides gras; et facultativement (iv) récupération desdits un ou plusieurs acides gras à partir de ladite au moins une souche d'algues.

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