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Title: Evaluation of lighting systems, carbon sources, and bacteria cultures on photofermentative hydrogen production
Authors: Hu, Chengcheng
Choy, Sing-Ying
Giannis, Apostolos
Keywords: Photofermentation
Fluorescent Light
Issue Date: 2018
Source: Hu, C., Choy, S.-Y., & Giannis, A. (2018). Evaluation of Lighting Systems, Carbon Sources, and Bacteria Cultures on Photofermentative Hydrogen Production. Applied Biochemistry and Biotechnology, 185(1), 257-269.
Series/Report no.: Applied Biochemistry and Biotechnology
Abstract: Fluorescent and incandescent lighting systems were applied for batch photofermentative hydrogen production by four purple non-sulfur photosynthetic bacteria (PNSB). The hydrogen production efficiency of Rhodopseudomonas palustris, Rhodobacter sphaeroides, Rhodobacter capsulatus, and Rhodospirillum rubrum was evaluated using different carbon sources (acetate, butyrate, lactate, and malate). Incandescent light was found to be more effective for bacteria cell growth and hydrogen production. It was observed that PNSB followed substrate selection criteria for hydrogen production. Only R. palustris was able to produce hydrogen using most carbon sources. Cell density was almost constant, but cell growth rate and hydrogen production were significantly varied under the different lighting systems. The kinetics study suggested that initial substrate concentration had a positive correlation with lag phase duration. Among the PNSB, R. palustris grew faster and had higher hydrogen yields of 1.58, 4.92, and 2.57 mol H2/mol using acetate, butyrate, and lactate, respectively. In the integrative approach with dark fermentation effluents rich in organic acids, R. palustris should be enriched in the phototrophic microbial consortium of the continuous hydrogen production system.
ISSN: 0273-2289
DOI: 10.1007/s12010-017-2655-5
Rights: © 2017 Springer Science+Business Media. This is the author created version of a work that has been peer reviewed and accepted for publication by Applied Biochemistry and Biotechnology, Springer Science+Business Media. It incorporates referee’s comments but changes resulting from the publishing process, such as copyediting, structural formatting, may not be reflected in this document. The published version is available at: [].
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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