Production of a fermentation product
Published online: Apr 30, 2008
| Geographical region | Europe |
|---|---|
| Subject | Production of fermentative products from plant biomass |
| Issue date | Apr 2, 2008 |
| Title | Production of a fermentation product |
| Patent Number | EP1527204 B1 |
| Patent Application Number | EP1527204 A0 |
| Assignee | Ciba Spec Chem Water Treat Ltd, Great Britain |
| Relevance | A method of producing fermentation products from plant derived material and biomass fraction of municipal solid waste using yeast strains. |
| Type of claims | Grant |
| Overview | This patent discloses a method of treating plant derived material and produce fermentation products such as ethanol, glycerol, acetone, n-butanol, butanediol, isopropanol, butyric acid etc. The plant derived materials include herbaceous biomass, softwood biomass, hardwood biomass, sewage sludge and paper mill sludge. The method advantageously improves the drainage rate of acid treated plant derived material and maximizes the recovery of soluble sugars. The process involves, A) forming an acidified suspension of particulate plant derived material comprising a first and second polysaccharide, B) allowing the both the polysaccharide to undergo hydrolysis by acid forming a mixture of an aqueous liquor containing dissolved sugar and a solid residue, C) subjecting the mixture to separation stages in which the solid residue and aqueous sugar liquor are separated and D) fermenting the aqueous liquor in which the dissolved sugars are converted to fermentation product using yeast strains (Klyveromyces sps, Candida sps, etc,) and E) separating the fermentation product from the broth by flocculation. |
| Related patent documents |
US Patent publications
Not Listed Foreign patent publicationsEP-A-150933 - A process for the production of polymers and aqueous solutions thereof (1985)
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| Patent Document | Full Patent Document [external link] |
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