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AssigneesInstitut National De La Recherche Scientifique Centre Eau Terre Environnement, Centre de Recherche Industrielle du Quebec
InventorsSampa Maiti, Satinder Kaur Brar, Yann LeBihan, Gorka Gallastegui Ruiz de Gordoa
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An efficient, rapid ex-situ detoxification has been developed to reduce inhibitor concentration and enhance acetone-butanol-ethanol (ABE) production from brewery industry liquid waste (BLW) and brewery spent grain (BSG). About 80±2.0% extraction of furan derivative and more than 95±2.0% extraction of phenolic compounds and almost no extraction of reducing sugar from simulated synthetic media as well as real waste hydrolysate have been obtained. Ex-situ extraction of microbial inhibitors from BLW and BSG hydrolysates using bis-(2-ethylhexyl) sebacate as solvent leads to high production of ABE of 12.67 g/L and 11.23 g/L respectively. Lower power consumption (0.081 W/L) and reuse of the extracting solvent made this detoxification technique extremely useful for improving production of bio-butanol from agro-industrial waste.
A process for extracting a microbial inhibitor from a hydrolysate of glycosidic waste matter containing free reducing sugars prior to a fermentation reaction, the process comprising the step of:
A process for the production of bio-butanol by fermentation of a detoxified hydrolysate of glycosidic waste matter containing free reducing sugars, the process comprising the step of:
The process of claim 20, wherein said clostridia bacteria comprises at least one of Clostridium acetobutylicum NRRL B-582, Clostridium beijerinckii NRRL B-466 and a combination thereof.
Dependencies are inferred from the claim text.