Photofermentive hydrogen production by Rhodobacter sphaeroides S10 using mixed organic carbon: Effects of the mixture composition

Pattanamanee, Walailak; Chisti, Yusuf; Choorit, Wanna

doi:10.1016/j.apenergy.2015.08.027

Cited by 35 publications

(11 citation statements)

References 44 publications

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“…PNS bacteria could efficiently use glucose [27] and sucrose [12] for the generation of hydrogen. Moreover, type and composition of substrate were told to strongly influence both the hydrogen production and biomass accumulation [28]. In the present study, considerable amount of simple sugars was obtained after acid hydrolysis of waste barley.…”

Section: The Analytical Features Of Barley Hydrolysatementioning

confidence: 58%

Ön işlemden geçirilmiş atık arpa kullanarak Rhodobacter sphaeroides O.U.001 ile hidrojen üretimi

Kars

Ceylan

2019

Cumhuriyet Science Journal

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In the present study, valorization of waste barley by producing hydrogen (H2) and 5-aminolevulinic acid (5-ALA) using Rhodobacter sphaeroides O.U.001 was aimed. Firstly, 3 % (w/v) waste barley hydrolysate was prepared by treating 3 g of powdered waste barley with H2SO4 in a total volume of 100 mL mixture and then autoclaving this mixture at 121 ºC for 30 min. Upon generation of fermentable simple sugars by pretreatment and analytical examination of the hydrolysate in terms of ammonium content, element composition and light transmittance, various types of growth media containing various concentrations of sugar (5-6-7-8 g/L) were prepared. The cells were cultivated in these media under photo-heterotrophic conditions which favor H2 and 5-ALA generations. pH changes, growth, H2 production and 5-ALA generation were monitored in the media. The results showed that all the media prepared from 3 % (w/v) waste barley hydrolysate sustained the cell growth appreciably. The highest OD value (OD660: 1.71) was attained when using 8 g/L sugar. Furthermore, biological H2 evolution was seen in each bioreactor. In particular, the highest hydrogen accumulation (0.29 L H2/L) was achieved in 6 g/L sugar-containing medium. However, 5-ALA was not detected in any of the media. To conclude, considerable cell growth and biological hydrogen production was achieved using 3 % (w/v) waste barley hydrolysate under the conditions tested but there was no detectable 5-ALA generation.

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Section: The Analytical Features Of Barley Hydrolysatementioning

confidence: 58%

Ön işlemden geçirilmiş atık arpa kullanarak Rhodobacter sphaeroides O.U.001 ile hidrojen üretimi

Kars

Ceylan

2019

Cumhuriyet Science Journal

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“…1a. Their inhibition is reversible and they do not demand any absolute anaerobic surroundings unlike [Fe-Fe] hydrogenase [124].…”

Section: [Ni-fe] Hydrogenasementioning

confidence: 99%

“…The characteristic aspect is the catalytic center (H-cluster) which consists of [4Fe-4S] attached to proteinous CO and CN ligands via further Fe-S groups. Molecular weights are about 45 to 50 kDa and in green algae the hydrogenase is encoded inside the chloroplast stroma using the gene hydA [124]. This enzyme is oxygen-sensitive, and thus, does not synthesize hydrogen under atmospheric conditions [124].…”

Section: [Fe-fe] Hydrogenasementioning

confidence: 99%

“…Molecular weights are about 45 to 50 kDa and in green algae the hydrogenase is encoded inside the chloroplast stroma using the gene hydA [124]. This enzyme is oxygen-sensitive, and thus, does not synthesize hydrogen under atmospheric conditions [124].…”

Section: [Fe-fe] Hydrogenasementioning

confidence: 99%

“…Nitrogenase enzymes play a significant role in biological fixation of nitrogen (N 2 ) reduced to ammonia (NH 3 ) while they generate biohydrogen as by-product in the atmosphere [29,124]. Nitrogenases are present only in prokaryotes that are in the heterocyst of filamentous cyanobacteria and bacteria systems.…”

Section: Nitrogenasementioning

confidence: 99%

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Microorganism-assisted biohydrogen (BioH 2 ) is an encouraging replacement of fossil-based fuels as feasible preference for various chemical and mechanical processes. BioH 2 is capable to reduce greenhouse gas emissions and solve environmental issues, therefore, numerous studies addressed optimization of operation design, microbial actions, certain addition of chemicals or nanoparticles, pretreatment of algal biomass, diminishing sensibility of enzymes towards O 2 , integration with different processes for biorefinery approach, reducing costs, bioelectrochemical cell membranes, and others. The present review focuses on model organisms employed for the microorganism-assisted biohydrogen production. Metabolic pathways such as biophotolysis, photofermentation, and dark fermentation were discussed for providing deep insight of microorganism-aided biohydrogen production.

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Growth of Photosynthetic Microorganisms in Different Photobioreactors Operated Outdoors

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Carlozzi

2021

Cyanobacteria Biotechnology

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Photofermentive hydrogen production by Rhodobacter sphaeroides S10 using mixed organic carbon: Effects of the mixture composition

Cited by 35 publications

References 44 publications

Ön işlemden geçirilmiş atık arpa kullanarak Rhodobacter sphaeroides O.U.001 ile hidrojen üretimi

Ön işlemden geçirilmiş atık arpa kullanarak Rhodobacter sphaeroides O.U.001 ile hidrojen üretimi

Microorganism‐Assisted Biohydrogen Production and Bioreactors

Growth of Photosynthetic Microorganisms in Different Photobioreactors Operated Outdoors

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