Hydrogen production from glucose by a mutant strain of Rhodovulum sulfidophilum P5 in single-stage photofermentation |
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| Affiliation: | 1. Tianjin Key Laboratory of Marine Resources and Chemistry, College of Marine Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, PR China;2. Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, Shandong, PR China;1. European Synchrotron Radiation Facility, 71 avenue des Martyrs, CS 40220, 38043 Grenoble cedex 9, France;2. CEA/LITEN/DTS, INES, 50 Avenue du Lac Léman, 73375 Le Bourget-du-Lac, France;3. Institut Néel CNRS/UJF UPR2940, 25 rue des Martyrs, BP 166, 38042 Grenoble cedex 9, France;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;2. Department of Food and Environment Engineering, East University of Heilongjiang, Harbin 150086, China;3. Key Laboratory of Beijing for Water Quality Science and Water Environment Recovery Engineering, Engineering Research Center of Beijing, Beijing University of Technology, Beijing 100124, China;4. Department of Civil and Environmental Engineering, University of Connecticut, Storrs, CT 06269, USA;1. Research Institute of Biology, Biology Faculty, Yerevan State University, 1 A. Manoogian Str., 0025 Yerevan, Armenia;2. Department of Biochemistry, Microbiology and Biotechnology, Biology Faculty, Yerevan State University, 1 A. Manoogian Str., 0025 Yerevan, Armenia |
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| Abstract: | Single-stage hydrogen production from glucose was investigated using the marine photosynthetic bacterium Rhodovulum sulfidophilum TH-79, a Tn7 transposon mutant of strain P5. The mutation in strain TH-79 did not affect its cell growth in glucose medium compared with the parent strain. TH-79 displayed improved photoheterotrophic hydrogen production performance when the medium contained glucose or galactose as the sole carbon source. The mutant produced about 7.07 mol H2/mol glucose, which is similar to the yields of more complicated integration systems. A one-stage photofermentation system using a seawater culture medium appears to be a promising alternative to the integration of dark- and photofermentation systems. |
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| Keywords: | Biohydrogen Photosynthetic bacterium Single-stage Transposon Glucose |
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