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Systems and methods for producing biofuels and related materials

a biofuel and system technology, applied in the field of systems and methods for producing biofuels, to achieve the effects of increasing ethanol yield, high efficiency, and increasing the yield of a desired produ

Inactive Publication Date: 2010-06-17
UNIV OF MASSACHUSETTS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0030]Other features and advantages of the invention will be apparent from the following detailed description, and from the claims.

Problems solved by technology

A current challenge is to develop viable and economical strategies for the conversion of carbohydrates into usable energy forms.

Method used

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  • Systems and methods for producing biofuels and related materials
  • Systems and methods for producing biofuels and related materials
  • Systems and methods for producing biofuels and related materials

Examples

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examples

[0089]The disclosure is further described in the following examples, which do not limit the scope of the invention described in the claims.

[0090]In one experiment, Clostridium phytoferrmentans was grown in culture tubes in GS-2 cellulose medium at an initial pH of 7.5 under an atmosphere of N2. The initial Clostridium phytofermentans concentration was about 0.8-1.1×107 cells / mL and the temperature of incubation was 30° C.

[0091]FIG. 6 shows the concentration of ethanol (E), acetate (A), formate (F), and lactate (L) upon completion of cellulose decomposition as a function of initial cellulose concentration (in glucose equivalents). At an initial cellulose concentration of 37 mM, the concentrations of lactate (L), acetate (A), and ethanol (E), were 4 mM, 20 mM, and 59 mM, respectively. Formate (F) was not detectable at this initial concentration. At an initial cellulose concentration of 74 mM, the concentrations of lactate (L), formate (F), acetate (A), and ethanol (E), were 7 mM, 10 m...

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Abstract

Clostridium phytofermentans cells (American Type Culture Collection 700394T) and all other strains of the species can ferment materials such as biomass into useful products and coproducts, such as ethanol, hydrogen and organic acids. Compositions that include Clostridium phytofermentans are also disclosed.

Description

CROSS REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of priority from U.S. Provisional Patent Application No. 60 / 762,813, filed on Jan. 27, 2006, the contents of which is incorporated herein by reference in its entirety.STATEMENT AS TO FEDERALLY SPONSORED RESEARCH[0002]This invention was made with Government support under Grant No. DE-FG02-02ER15330, awarded by the United States Department of Energy (DOE). The Government thus has certain rights in the invention.TECHNICAL FIELD[0003]This invention relates to compositions, and to systems and methods for producing biofuels such as ethanol, and related materials.BACKGROUND[0004]There is an interest in developing methods of producing usable energy from renewable and sustainable biomass resources. Energy in the form of carbohydrates can be found in waste biomass, and in dedicated energy crops, such as grains (e.g., corn or wheat) or grasses (e.g., switchgrass). Cellulosic and lignocellulosic materials, are produ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C12P7/06C12P7/16
CPCC12N1/26C12P7/02C12P7/06Y02E50/17C12R1/145Y02E50/16C12P7/10Y02E50/10C12R2001/145C12N1/205C12N1/20
Inventor LESCHINE, SUSANWARNICK, THOMAS A.
Owner UNIV OF MASSACHUSETTS
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