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Showing 1 to 15 of 15 for “"Gluconobacter oxydans"”.
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Untersuchungen zur Physiologie des Essigsäurebakteriums Gluconobacter oxydans 621H
Gluconobacter oxydans 621H ist ein Gram-negatives alpha-Proteobakterium und zählt zur Familie der Acetobacteriaceae. Dieser strikt aerobe Organismus ist an substratreiche Habitate, z.B. Blütennektar oder Früchte, angepasst und wächst optimal bei 25 bis 30 °C und pH-Werten von 5,5 bis 6,0. Aufgrund …
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Diversity of limited oxidations accomplished by gluconobacter oxydans
<i>Gluconobacter oxydans</i> is characterized by the ability to carry out rapid, single-step oxidations of many different hydroxyl-containing compounds. These oxidations are believed to be catalyzed by the membrane-bound NAD(P)-independent dehydrogenases. Experiments were designed to use <i>G. …
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Function of limited sorbitol oxidation in Gluconobacter oxydans
Bacteria of the genus Gluconobacter have very active, membrane-bound, NAD(P)-independent, polyol dehydrogenases which stoichiometrically produce the singlestep oxidation product of polyols provided in the growth medium. These bacteria have a high respiratory quotient which is believed to result …
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Auswirkungen der Deletion membranständiger Dehydrogenasen auf Gluconobacter oxydans DSM 7145
Essigsäurebakterien, im besonderen die Gattung Gluconobacter, sind in ihrer Fähigkeit verschiedenste Zucker, Zuckeralkohole und Polyole unvollständig zu oxidieren unübertroffen. Die für die Oxidation verantwortlichen Dehydrogenasen werden in zwei Gruppen, membranständige und cytoplasmatische …
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Entschlüsselung des Genoms von Gluconobacter oxydans 621H - einem Bakterium von industriellem Interesse
Gluconobacter-Arten gehören, zusammen mit Vertretern der Gattungen Acetobacter und Gluconacetobacter, zu der Familie der Acetobacteriaceae. In der Regel oxidieren aerobe Mikroorganismen ihre Kohlenstoffquelle vollständig zu Kohlendioxid und Wasser. Bei diesem Abbauprozess werden sowohl Energie als …
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The role of respiration-dependent proton translocation in the acid tolerance of Gluconobacter oxydans
Gluconobacter oxydans is characterized by extreme acid tolerance and the ability to carry out rapid, single-step polyol oxidation catalyzed by membrane bound ehydrogenases. Experiments were designed to determine whether acid tolerance is associated with rapid polyol oxidation in this organism. …
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Factors affecting use of sorbitol as a carbon source by exponentially growing Gluconobacter oxydans ATCC 19357
Gluconobacters are known for their rapid oxidation of large quantities of sorbitol (SL) and quantitative conversion to sorbose (SE). Whether SL is assimilated into cell material has not been examined before and was investigated in this study. The effect of changing growth and oxidation rates on use …
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The Development of Genetic Tools for Protein Characterization and Genetic Engineering in the Acetic Acid Bacterium Gluconobacter Oxydans
The acetic acid bacterium Gluconobacter oxydans is well known for its ability to incompletely oxidize carbon substrates under normal conditions. The incomplete oxidations are carried out by membrane-bound dehydrogenases that channel electrons directly into the electron transport chain. Many of …
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Isolation and characterization of the (NAD(P)-independent)polyol dehydrogenase from the plasma-membranes of gluconobacter oxydans ATCC strain 621
Gluconobacter species rapidly perform limited oxidations of a large number of different polyhydroxy alcohols (polyols). These oxidations are catalyzed by constituitively synthesized plasma-membrane bound dehydrogenases. These bacteria would have to expend much energy to constituitively synthesize a …
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A nucleic acid homology study of the genus Azospirillum
… and Rhodospirillum rubrum (>65% RNA homology); Gluconobacter oxydans and Beijerinckia indica exhibited 30 to 60% RNA homology with Azospirillum species. Deoxyribonucleic acid (DNA) studies indicated that Conglomeromonas largomobilis subsp. largomobilis was related to Azospirillum lipoferum by …
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The Production of 2-Keto-L-Gulonic Acid by Different Gluconobacter Strains
… produced by the Reichstein method, which uses gluconobacters to oxidize sorbitol to sorbose then a chemical process to convert sorbose to 2-keto-L-gulonic acid (2-KLG). The establishment of a more extensive microbial process for 2-KLG production translates into a less expensive and more …
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Pineapple Vinegar to Enhance Shelf Life of Carrot and Mango in Tanzania
… cereviciae, Acetobacter pasteurianus, and Gluconobacter oxydans. Levels of acetic acid were measured in the vinegar produced. High production (5.8%) of acetic acid was observed with pineapple juice concentrated to 130 Brix with the combination of Saccharomyces cerevisiae, A. pasteurianus …
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Discovery of Quinic Acid Derivatives as Oral Anti-inflammatory Agents
… study was conducted in cultured bacterial <em>gluconobacter oxydans</em>. Plasma protein binding and metabolic stability were determined using equilibrium dialysis and rat liver microsomes respectively. Following i.v. administration, KZ-41 demonstrated a medium clearance (15.1±4.8 mL/min/kg), …
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Entwicklung und Anwendung einer Fed-batch-Betriebsweise mit Nährstofffreisetzungssystemen zur kontrollierten Kultivierung und zum Screening von Mikroorganismen in Schüttelreaktoren
… the metabolism of H. polymorpha, E. coli and G. oxydans in shake flasks. The OTR and RQ were monitored online with a RAMOS device. Biomass formation, synthesis of proteins like GFP or eYFP-IL-6, pH drift and metabolic dynamics of glucose, ethanol, acetic acid and other organic acids were measured …