Journal ArticleDOI
Spezifische Farbreaktion zum direkten Nachweis der Ameisensäure
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TLDR
In this paper, a spezifische farbreaktion ermoglicht den Nachweis der Ameisensaure und des Formiats ohne vorherige Reduktion zu Formaldehyd.Abstract:
Eine neue, spezifische Farbreaktion ermoglicht den Nachweis der Ameisensaure und des Formiats ohne vorherige Reduktion zu Formaldehyd. Der Nachweis beruht auf der roten Farbung, die man durch Reaktion von Citronensaure bzw. Aconitsauren mit Ameisensaure oder Formiat in Gegenwart von Essigsaureanhydrid, i-Propanol oder einer geeigneten Acetamid-i-Propanol-Losung und einer kleinen Menge Alkali erhalt. Die bei Verwendung von Citronensaure erzeugte rote Farbe zeigt ein Lichtabsorptionsmaximum bei 515 nm. Weniger als 20 μg Formiat/ml konnen nachgewiesen werden.read more
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Journal ArticleDOI
Substrate specificity of soluble methane monooxygenase. Mechanistic implications.
TL;DR: The evidence suggests that soluble methane monooxygenase oxidizes substrates via a nonconcerted reaction mechanism (hydrogen abstraction preceding hydroxylation) with radical or carbocation intermediates.
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Carbon Monoxide Oxidation by Clostridium thermoaceticum and Clostridium formicoaceticum
TL;DR: In this paper, it was shown that carbon monoxide oxidation in C. acidi-urici and C. cylindrosporum is catalyzed by a corrinoid enzyme and that in vivo the reaction is coupled with the reduction of CO(2) to acetate.
Journal ArticleDOI
Isolation and Characterization of an Anaerobic, Cellulolytic Bacterium, Clostridium cellulovorans sp. nov
TL;DR: A new anaerobic, mesophilic, spore-forming cellulolytic bacterium is described which resembles "Clostridium lochheadii" in morphological and some biochemical characteristics but is not identical to it.
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Anaerobic digestion of glucose with separated acid production and methane formation
TL;DR: In this article, a two-phase anaerobic digestion system, with separate reactors for the acidification phase and the methane fermentation phase, was shown to almost completely convert a 1% glucose solution into biomass and gases.
Journal ArticleDOI
Characterization of the H2- and CO-dependent chemolithotrophic potentials of the acetogens Clostridium thermoaceticum and Acetogenium kivui.
TL;DR: The specific activities of hydrogenase and CO dehydrogenase in both acetogens were influenced by the energy source utilized for growth and were significantly lower in C. thermoaceticum than in A. kivui.
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