Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates.

Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates. Research Abstract Details 

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Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates. Abstract Text:

Hiroshi Yokoyama,Naoko Moriya,Hideyuki Ohmori,Miyoko Waki,Akifumi Ogino,Yasuo Tanaka,Hiroshi Yokoyama,Naoko Moriya,Hideyuki Ohmori,Miyoko Waki,Akifumi Ogino,Yasuo Tanaka,Hiroshi Yokoyama,Naoko Moriya,Hideyuki Ohmori,Miyoko Waki,Akifumi Ogino,Yasuo Tanaka,

The present study analyzed the community structures of anaerobic microflora producing hydrogen under extreme thermophilic conditions by two culture-independent methods: denaturing gradient gel electrophoresis (DGGE) and clone library analyses. Extreme thermophilic microflora (ETM) was enriched from cow manure by repeated batch cultures at 75 degrees C, using a substrate of xylose, glucose, lactose, cellobiose, or soluble starch, and produced hydrogen at yields of 0.56, 2.65, 2.17, 2.68, and 1.73 mol/mol-monosaccharide degraded, respectively. The results from the DGGE and clone library analyses were consistent and demonstrated that the community structures of ETM enriched with the four hexose-based substrates (glucose, lactose, cellobiose, and soluble starch) consisted of a single species, closely related to a hydrogen-producing extreme thermophile, Caldoanaerobacter subterraneus, with diversity at subspecies levels. The ETM enriched with xylose was more diverse than those enriched with the other substrates, and contained the bacterium related to C. subterraneus and an unclassified bacterium, distantly related to a xylan-degrading and hydrogen-producing extreme thermophile, Caloramator fervidus.

Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates. Publishing Authors By Initials

H Yokoyama,N Moriya,H Ohmori,M Waki,A Ogino,Y Tanaka,H Yokoyama,N Moriya,H Ohmori,M Waki,A Ogino,Y Tanaka,H Yokoyama,N Moriya,H Ohmori,M Waki,A Ogino,Y Tanaka,

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Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Applied microbiology and biotechnology

VOLUME: 77

Page Numbers: 213-22

Journal Abbreviation: Appl. Microbiol. Biotechnol.

ISSN: 0175-7598

DAY: 8

MONTH: 09

YEAR: 2007

Community analysis of hydrogen-producing extreme thermophilic anaerobic microflora enriched from cow manure with five substrates. Information

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LANGUAGE: eng

NlmUniqueID: 8406612

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AFFILIATION: Waste Recycling Research Team, National Institute of Livestock and Grassland Science, 2 Ikenodai, Tsukuba, Ibaraki, Japan. hiroshiy@affrc.go.jp

Country: Germany

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MEDLINETA: Appl Microbiol Biotechnol

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