The quantum requirement for H2 production by anoxygenic phototrophic bacteria

1993 ◽  
Vol 39 (3) ◽  
Author(s):  
Rolf Warthmann ◽  
Norbert Pfennig ◽  
Heribert Cypionka
Keyword(s):  
H2 Production ◽  
Phototrophic Bacteria ◽  
Anoxygenic Phototrophic Bacteria ◽  
Quantum Requirement

Anoxygenic phototrophic bacteria of the high-altitude meromictic Lake Gek-Gel, Azerbaijan

Microbiology ◽  
2008 ◽  
Vol 77 (5) ◽  
pp. 602-609 ◽  
Author(s):  
O. N. Lunina ◽  
M. V. Kevbrina ◽  
V. N. Akimov ◽  
N. V. Pimenov
Keyword(s):  
High Altitude ◽  
Phototrophic Bacteria ◽  
Meromictic Lake ◽  
Anoxygenic Phototrophic Bacteria

Communities of anoxygenic phototrophic bacteria in the saline soda lakes of the Kulunda steppe (Altai Krai)

Microbiology ◽  
2010 ◽  
Vol 79 (1) ◽  
pp. 89-95 ◽  
Author(s):  
E. I. Kompantseva ◽  
A. V. Komova ◽  
D. Yu. Sorokin
Keyword(s):  
Soda Lakes ◽  
Phototrophic Bacteria ◽  
Anoxygenic Phototrophic Bacteria ◽  
Kulunda Steppe

scholarly journals Distribution of free-living and particle-attached aerobic anoxygenic phototrophic bacteria in marine environments

2009 ◽  
Vol 55 ◽  
pp. 31-38 ◽  
Author(s):  
R Lami ◽  
Z âuperová ◽  
J Ras ◽  
P Lebaron ◽  
M KoblíÏek
Keyword(s):  
Phototrophic Bacteria ◽  
Anoxygenic Phototrophic Bacteria ◽  
Marine Environments ◽  
Free Living ◽  
Aerobic Anoxygenic Phototrophic Bacteria

scholarly journals Optimization of H2 Production through Minimization of CO2 Emissions by Mixed Cultures of Purple Phototrophic Bacteria in Aqueous Samples

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2015
Author(s):  
I.A. Vasiliadou ◽  
J.A. Melero ◽  
R. Molina ◽  
D. Puyol ◽  
F. Martinez
Keyword(s):  
Acetic Acid ◽  
Carbon Dioxide Emissions ◽  
Co2 Emission ◽  
Production Efficiency ◽  
Reducing Power ◽  
Value Added ◽  
H2 Production ◽  
Phototrophic Bacteria ◽  
Mixed Cultures ◽  
Production Of Hydrogen

One of the current challenges in the treatment of wastewater is the recovery and/or transformation of their resources into high value-added products, such as biohydrogen. The aim of the present study was to optimize the production of hydrogen by mixed cultures of purple phototrophic bacteria (PPB), targeting in low CO2 emission. Batch assays were conducted using different carbon (malic, butyric, acetic acid) and nitrogen (NH4Cl, Na-glutamate, N2 gas) sources by varying the chemical oxygen demand to nitrogen ratio (COD:N 100:3 to 100:44), under infrared radiation as sole energy source. Malate-glutamate (COD:N 100:5.5) and malate-NH4-N (COD:N 100:3) fed cultures, exhibited high H2 production rates of 2.3 and 2.5 mLH2/Lh, respectively. It was observed that the use of glutamate decreased the CO2 emission by 74% (13.4 mLCO2/L) as compared to NH4-N. The H2 production efficiency achieved by organic carbon substrates in combination with glutamate, was in the order of malic (370 mLH2/L) > butyric (145 mLH2/L) > acetic acid (95 mLH2/L). These substrates entailed partitioning of reducing power into biomass at 64%, 50% and 48%, respectively, whereas reductants were derived to biohydrogen at 5.8%, 6.1% and 2.1%, respectively. These results suggest that nitrogen source and carbon dioxide emissions play an important role in the optimization of hydrogen production by PPB.

Dimethyl sulphoxide reduction with reduced sulphur compounds as electron donors by anoxygenic phototrophic bacteria

Microbiology ◽  
1997 ◽  
Vol 143 (3) ◽  
pp. 767-773 ◽  
Author(s):  
C. Vogt ◽  
A. Rabenstein ◽  
J. Rethmeier ◽  
U. Fischer
Keyword(s):  
Phototrophic Bacteria ◽  
Electron Donors ◽  
Dimethyl Sulphoxide ◽  
Anoxygenic Phototrophic Bacteria ◽  
Sulphur Compounds ◽  
Reduced Sulphur Compounds
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