Abstract：
:In the present work the hydrogenesis in the anaerobic alkalithermophilic bacterium Thermobrachium celere was studied. The impact of several factors on hydrogen production during glucose fermentation was investigated in batch conditions. The optimal hydrogen production occurred at pH (67 °C) 8.2 with phosphate buffer concentration of 50 mM. Hydrogen yield reached the highest value of 3.36 mol H2/mol glucose when the partial pressure in the gas headspace was reduced. Supplementation of nitrogen sources and iron affected hydrogen production. Under optimized conditions, the maximum H2 accumulation and H2 production rate were estimated to be respectively 124.3 mmol H2/l culture and 20.7 mmol H2/l/h. Considering the efficient and rapid hydrogen evolution, and the ability to grow in extreme environments, T. celere might be a good candidate for biohydrogen production in open (non-sterile) bioprocess system.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Ciranna A,Santala V,Karp Mdoi
10.1016/j.biortech.2011.01.028subject
Has Abstractpub_date
2011-09-01 00:00:00pages
8714-22issue
18eissn
0960-8524issn
1873-2976pii
S0960-8524(11)00096-4journal_volume
102pub_type
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