TY - JOUR
T1 - Microaerobic hydrogen production by photosynthetic bacteria in a double- phase photobioreactor
AU - Matsunaga, Tadashi
AU - Hatano, Tomoyuki
AU - Yamada, Akiyo
AU - Matsumoto, Mitsufumi
PY - 2000/6/20
Y1 - 2000/6/20
N2 - The rate of hydrogen production by the marine nonsulfur photosynthetic bacterium, Rhodovulum sp., increased with increasing light intensity. A light intensity of 1800 W/m2 hydrogen production rate was achieved at the rate of 9.4 μmol/mg dry weight/h. The hydrogen production of this strain was enhanced by the addition of a small amount of oxygen (12 μmol O2/reactor). Intracellular ATP content was most efficiently accumulated under microaerobic, dark conditions. Hydrogen production rate by Rhodovulum sp. was investigated using a double-phase photobioreactor consisting of light and dark compartments. This rate was compared with data obtained using a conventional photobioreactor. Rhodovulum sp. produced hydrogen at a rate of 0.38 ± 0.03 μmol/mg dry weight/h under microaerobic conditions using the double-phase photobioreactor. The hydrogen production rate was four times greater under microaerobic conditions, as compared with anaerobic conditions using either type of photobioreactor. Hydrogen production using a double- phase photobioreactor was demonstrated continuously at the same rate for 150 h. (C) 2000 John Wiley and Sons, Inc.
AB - The rate of hydrogen production by the marine nonsulfur photosynthetic bacterium, Rhodovulum sp., increased with increasing light intensity. A light intensity of 1800 W/m2 hydrogen production rate was achieved at the rate of 9.4 μmol/mg dry weight/h. The hydrogen production of this strain was enhanced by the addition of a small amount of oxygen (12 μmol O2/reactor). Intracellular ATP content was most efficiently accumulated under microaerobic, dark conditions. Hydrogen production rate by Rhodovulum sp. was investigated using a double-phase photobioreactor consisting of light and dark compartments. This rate was compared with data obtained using a conventional photobioreactor. Rhodovulum sp. produced hydrogen at a rate of 0.38 ± 0.03 μmol/mg dry weight/h under microaerobic conditions using the double-phase photobioreactor. The hydrogen production rate was four times greater under microaerobic conditions, as compared with anaerobic conditions using either type of photobioreactor. Hydrogen production using a double- phase photobioreactor was demonstrated continuously at the same rate for 150 h. (C) 2000 John Wiley and Sons, Inc.
KW - Double-phase photobioreactor
KW - Hydrogen production
KW - Marine photosynthetic bacteria
KW - Microaerobic condition
KW - Respiration
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U2 - 10.1002/(SICI)1097-0290(20000620)68:6<647::AID-BIT7>3.0.CO;2-8
DO - 10.1002/(SICI)1097-0290(20000620)68:6<647::AID-BIT7>3.0.CO;2-8
M3 - Article
C2 - 10799989
AN - SCOPUS:0034691239
SN - 0006-3592
VL - 68
SP - 647
EP - 651
JO - Biotechnology and Bioengineering
JF - Biotechnology and Bioengineering
IS - 6
ER -
