NOVELTY - Producing fatty acids, comprises: (i) inoculating a mixture of at least one of cellulose, hemicellulose, and lignin with at least one microorganism strain and at least one algae strain; (ii) growing the inoculated strains under aerobic conditions; (iii) growing under anaerobic condition, and (a) either growing in heterotrophic condition (b) or growing in phototrophic condition; (iv) growing under aerobic conditions, where the algae strain metabolizes the fermentation product produced in step (iii) to produce fatty acids; and (v) optionally recovering the fatty acids.    USE - The method is useful for the extracellular and/or intracellular production of fatty acids, hydrocarbons, proteins, pigments, sugars e.g. polysaccharides and monosaccharides or glycerol, which are useful for biofuel, cosmetic, alimentary, mechanical grease, pigmentation, and medical use production. The hydrocarbon chains produced by the algae strain are useful as feedstock for hydrocracking in an oil refinery to produce octane, gasoline, petrol, kerosene, diesel or other petroleum product as solvent, plastic, oil, grease and fibers (all claimed). The hydrocarbons are useful in: petroleum based products e.g. solvents; paints; lacquers; printing inks; lubricating oils; grease for automobile engines and other machinery; wax used in candy making, packaging, candles, matches and polishes; petroleum jelly; asphalt; petroleum coke; and petroleum feedstock used as chemical feedstock derived from petroleum for the manufacture of chemicals, synthetic rubber, and a variety of plastics.    ADVANTAGE - The method uses all or part of carbon dioxide, so there is no or little residual carbon dioxide released as a byproduct of the method. The algae strain produces no inhibitory by-product that inhibits growth of the algae. In the method, supernatant recovered in step (v) can be reused. The algae strain is adapted to use waste glycerol, as carbon source, produced by the transesterification reaction without pretreatment or refinement to produce fatty acids for biodiesel production. The microorganism is adapted to produce a greater amount of one or more cellulases, hemicellulases and laccases that hydrolyze at least one of cellulose, hemicellulose and lignin, to produce at least one of glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars in the mixture, as compared to a wild type of the microorganism. The method: eliminates the need for costly enzymes produced by outside manufacturers that are required in conventional processes for bio-ethanol production; and does not require detoxification.    DETAILED DESCRIPTION - Producing fatty acids, comprises: (i) inoculating a mixture of at least one of cellulose, hemicellulose, and lignin with at least one microorganism strain and at least one algae strain; (ii) growing the inoculated strains under aerobic conditions, where the microorganism strain produces one or more cellulases, hemicelluloses and laccases that hydrolyze at least one of cellulose, hemicellulose and lignin, to produce at least one of glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars in the mixture, and the algae strain metabolizes acetic acid produced in a pretreatment step and also metabolizes the glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars produced by the microorganism strain; (iii) growing under anaerobic condition, and (a) either growing in heterotrophic condition, where: the microorganism strain continues to produce one or more cellulases, hemicellulases, and/or laccases that hydrolyze at least one of cellulose, hemicellulose, and lignin, and thus produces at least one fermentation product comprising one or more alcohols in the mixture, and the algae strain uses part of the glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars produced by the microorganism (b) or growing in phototrophic condition, where: the microorganism strain continues to produce one or more cellulases, hemicellulases, and/or laccases that hydrolyze at least one of cellulose, hemicellulose, and lignin, and thus produces at least one fermentation product comprising one or more alcohols and carbon dioxide in the mixture, and the algae strain uses most of the carbon dioxide, part or all of the fermentation product and part of the glucose, cellobiose, xylose, mannose, galactose, rhamnose, arabinose or other hemicellulose sugars produced by the microorganism; (iv) growing under aerobic conditions, where: the algae strain metabolizes the fermentation product produced in step (iii) to produce one or more fatty acids, and the microorganism continues producing the cellulases, hemicellulases, and/or laccases; and (v) optionally recovering the fatty acids. The microorganism strain and algae strain are aerobic and anaerobic organisms. INDEPENDENT CLAIMS are also included for: (a1) a product comprising isolated algae adapted to metabolize waste glycerol, where the adaptation does not include genetic modification; (a2) a product comprising an isolated biomass-cell culture mixture under conditions comprising at least a plant biomass, one microorganism adapted to saccharify the biomass and one algae adapted to metabolize one product of the saccharification; (a3) a product comprising an evolutionarily modified microorganism (EMO), where the organism is adapted to grow under culture conditions comprising the presence of furfural, acetic acid, phenolics, lignin and/or their salts; and (a4) a method of producing a fuel comprising contacting a Jatropha byproduct with a heterotrophic algae under culture conditions sufficient for the heterotrophic algae to process the byproduct to produce the fuel.