The microbiology and physiology of anaerobic fermentations of cellulose: Progress report, May 1987--October 1988
The long term goals of this research project are to define (1) the mechanism(s) of the activation of molecular hydrogen in terms of the nickel-sulfur, nickel-selenium and non-heme iron redox centers and (2) to understand the physiological role of hydrogenases in the metabolism of the sulfate reducing bacteria and other anaerobic bacteria. Toward these goals, the presence of three different hydrogenases, termed the (Fe) hydrogenase, the (NiS) hydrogenase and the (NiSe) hydrogenase, have been demonstrated in the sulfate reducing bacteria (18) gram qualities of the hydrogenases prepared, molecular biological studies initiated (5,13) and a bioenergetic mechanism demonstrated which requires two or more hydrogenases (3). The goals of our study were to obtain properties of extreme thermophilic anaerobes involved in the degradation of cellulosic material to understand better the process of biomass conversion and its possible industrial studying organisms which grow naturally together with cellulose degraders and those which can be grown in cocultures with cellulolytic and hemicellulolytic bacteria to obtain special fermentation products. It also includes the study of the ability of a group of extreme thermophiles to grow over an extended temperature span of 40/degree/c or more and to examine a forwarded theory on the nature of temperature tolerant thermophiles. 43 refs., 3 figs.
- Research Organization:
- Georgia Univ., Athens (USA)
- DOE Contract Number:
- FG09-86ER13614
- OSTI ID:
- 6682572
- Report Number(s):
- DOE/ER/13614-2; ON: DE89002348
- Resource Relation:
- Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Microbiology and physiology of anaerobic fermentations of cellulose
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Related Subjects
BIOMASS
FERMENTATION
CELLULOSE
ENZYMATIC HYDROLYSIS
ETHANOL FUELS
BIOSYNTHESIS
AMINO ACID SEQUENCE
BACTERIA
DNA-CLONING
HYDROGENASES
LIQUID FUELS
METHANE
MOLECULAR BIOLOGY
PROGRESS REPORT
TEMPERATURE DEPENDENCE
ALCOHOL FUELS
ALKANES
BIOCONVERSION
CARBOHYDRATES
CHEMICAL REACTIONS
CLONING
DECOMPOSITION
DNA HYBRIDIZATION
DOCUMENT TYPES
ENERGY SOURCES
ENZYMES
FUELS
HYBRIDIZATION
HYDROCARBONS
HYDROLYSIS
LYSIS
MICROORGANISMS
MOLECULAR STRUCTURE
ORGANIC COMPOUNDS
OXIDOREDUCTASES
POLYSACCHARIDES
RENEWABLE ENERGY SOURCES
SACCHARIDES
SOLVOLYSIS
SYNTHESIS
SYNTHETIC FUELS
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