A1 Refereed original research article in a scientific journal
Factors affecting photobiological hydrogen production in five filamentous cyanobacteria from Thailand
Authors: Yodsang P, Raksajit W, Aro EM, Maenpaa P, Incharoensakdi A
Publisher: SPRINGER
Publication year: 2018
Journal: Photosynthetica
Journal name in source: PHOTOSYNTHETICA
Journal acronym: PHOTOSYNTHETICA
Volume: 56
Issue: 1
First page : 334
Last page: 341
Number of pages: 8
ISSN: 0300-3604
DOI: https://doi.org/10.1007/s11099-018-0789-5
Abstract
We report here the screening of sixteen cyanobacterial and three green algal strains from Thailand for their potential biohydrogen production. Five filamentous cyanobacterial species, namely Calothrix elenkinii, Fischerella muscicola, Nostoc calcicola, Scytonema bohneri, and Tolypothrix distorta, all possessing nitrogenase activity, showed potentially high biohydrogen production. These five strains showed higher hydrogen production in the absence than in the presence of nitrogen. In particular, F. muscicola had a 17-fold increased hydrogen production under combined nitrogen and sulfur deprived conditions. Among various sugars as a carbon source, glucose at 0.1% (w/v) gave the maximal hydrogen production of 10.9 mu mol(H-2) mg(-1)(Chl) h(-1) in T. distorta grown in BG11 medium without nitrate. Increasing light intensity up to 250 mu mol(photon) m(-2) s(-1) increased hydrogen production in F. muscicola and T. distorta. Overall results indicate that both F. muscicola and T. distorta have a high potential for hydrogen production amenable for further improvement by using molecular genetics technique.
We report here the screening of sixteen cyanobacterial and three green algal strains from Thailand for their potential biohydrogen production. Five filamentous cyanobacterial species, namely Calothrix elenkinii, Fischerella muscicola, Nostoc calcicola, Scytonema bohneri, and Tolypothrix distorta, all possessing nitrogenase activity, showed potentially high biohydrogen production. These five strains showed higher hydrogen production in the absence than in the presence of nitrogen. In particular, F. muscicola had a 17-fold increased hydrogen production under combined nitrogen and sulfur deprived conditions. Among various sugars as a carbon source, glucose at 0.1% (w/v) gave the maximal hydrogen production of 10.9 mu mol(H-2) mg(-1)(Chl) h(-1) in T. distorta grown in BG11 medium without nitrate. Increasing light intensity up to 250 mu mol(photon) m(-2) s(-1) increased hydrogen production in F. muscicola and T. distorta. Overall results indicate that both F. muscicola and T. distorta have a high potential for hydrogen production amenable for further improvement by using molecular genetics technique.
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