Glucose fermentation to acetate, CO2 and H2 in the anaerobic hyperthermophilic eubacterium Thermotoga maritima: involvement of the Embden-Meyerhof pathway

Schröder, Catrin; Selig, Martina; Schönheit, Peter

doi:10.1007/bf00307766

Cited by 90 publications

(96 citation statements)

References 33 publications

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“…They claimed the yield of 3.3 mol-H 2 /mol-glucose. Schroder et al (1994) reported a hydrogen production of 4 mol-H 2 /mol-glucose, which corresponds to the theoretical maximum under 808C by Thermotoga maritima with pH at 6.5.…”

Section: Discussion the Effect Of Hrt On Hydrogen Production Versus Mmentioning

confidence: 88%

Effects of pH and hydraulic retention time on hydrogen production versus methanogenesis during anaerobic fermentation of organic household solid waste under extreme‐thermophilic temperature (70°C)

Liu

Zeng

Angelidaki

2008

Biotech & Bioengineering

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Two continuously stirred tank reactors were operated with household solid waste at 70 degrees C, for hydrogen and methane production. The individual effect of hydraulic retention time (HRT as 1, 2, 3, 4, and 6 days) at pH 7 or pH (5, 5.5, 6, 6.5, 7) at 3-day HRT was investigated on the hydrogen production versus methanogenesis. It was found that at pH 7, the maximum hydrogen yield was 107 mL-H(2)/g VS(added) (volatile solid added) but no stable hydrogen production was obtained as after some time methanogenesis was initiated at all tested HRTs. This demonstrated that sludge retention time alone was not enough for washing out the methanogens at pH 7 under extreme-thermophilic conditions. Oppositely, we showed that keeping the pH level at 5.5 was enough to inhibit methane and produce hydrogen stably at 3-day HRT. However, the maximum stable hydrogen yield was low at 21 mL-H(2)/g VS(added).

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Section: Discussion the Effect Of Hrt On Hydrogen Production Versus Mmentioning

confidence: 88%

Effects of pH and hydraulic retention time on hydrogen production versus methanogenesis during anaerobic fermentation of organic household solid waste under extreme‐thermophilic temperature (70°C)

Liu

Zeng

Angelidaki

2008

Biotech & Bioengineering

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“…[1][2][3] In particular, thermophilic microorganisms of the order Thermotogales convert carbohydrates into H 2 , acetic acid, and CO 2 close to the theoretical stoichiometry, [4] according to Reaction (1):…”

Section: Introductionmentioning

confidence: 98%

Recycling of Carbon Dioxide and Acetate as Lactic Acid by the Hydrogen‐Producing Bacterium Thermotoga neapolitana

2014

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The heterotrophic bacterium Thermotoga neapolitana produces hydrogen by fermentation of sugars. Under capnophilic (carbon dioxide requiring) conditions, the process is preferentially associated with the production of lactic acid, which, as shown herein, is synthesized by reductive carboxylation of acetyl coenzyme A. The enzymatic coupling is dependent on the carbon dioxide stimulated activity of heterotetrameric pyruvate:ferredoxin oxidoreductase. Under the same culture conditions, T. neapolitana also operates the unfavorable synthesis of lactic acid from an exogenous acetate supply. This process, which requires carbon dioxide (or carbonate) and an unknown electron donor, allows for the conversion of carbon dioxide into added-value chemicals without biomass deconstruction.

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“…An NADH:ferredoxin reductase (EC 1.18.1.3) was described by Jungermann et al 43 and Gottschalk et al; 44 and this activity has since been demonstrated in many anaerobic fermentative bacteria including Tt. maritima 26 and Clostridium cellulolyticum. 45 Cl.…”

Section: Enzymologymentioning

confidence: 99%

Biological Hydrogen Production by Anaerobic Microorganisms

et al. 2009

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Glucose fermentation to acetate, CO2 and H2 in the anaerobic hyperthermophilic eubacterium Thermotoga maritima: involvement of the Embden-Meyerhof pathway

Cited by 90 publications

References 33 publications

Effects of pH and hydraulic retention time on hydrogen production versus methanogenesis during anaerobic fermentation of organic household solid waste under extreme‐thermophilic temperature (70°C)

Effects of pH and hydraulic retention time on hydrogen production versus methanogenesis during anaerobic fermentation of organic household solid waste under extreme‐thermophilic temperature (70°C)

Recycling of Carbon Dioxide and Acetate as Lactic Acid by the Hydrogen‐Producing Bacterium Thermotoga neapolitana

Biological Hydrogen Production by Anaerobic Microorganisms

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