Oxygen transfer rate measured by gluconic acid production
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چکیده
منابع مشابه
Oxygen Transfer Mechanisms in the Gluconic
The oxygen uptake rate to suspended cells of Pseudomonas ovalis was measured in two ways using the same cell suspension. Initially the rate was found by measuring the rate of production of gluconic acid by cells suspended in a nitrogenfree, aerated medium. Then, an oxygen electrode was used to measure the rate of transfer of dissolved oxygen to cells suspended in a liquid that was being agitate...
متن کاملProduction of Gluconic Acid by Some Local Fungi
Forty-one fungal species belonging to 15 fungal genera isolated from Egyptian soil and sugar cane waste samples were tested for their capacity of producing acidity and gluconic acid. For the tests, the fungi were grown on glucose substrate and culture filtrates were examined using paper chromatography analysis. Most of the tested fungi have a relative wide potentiality for total acid production...
متن کاملGluconic Acid: Properties, Applications and Microbial Production
Gluconic acid is a mild organic acid derived from glucose by a simple oxidation reaction. The reaction is facilitated by the enzyme glucose oxidase (fungi) and glucose dehydrogenase (bacteria such as Gluconobacter). Microbial production of gluconic acid is the preferred method and it dates back to several decades. The most studied and widely used fermentation process involves the fungus Aspergi...
متن کاملOxygen Transfer in Fermentation Systems-I. Use of Gluconic Acid Fermentation for Determination
Oxygen transfer has been studied in the Pseudomonas ovalis fermentation that quantitatively converts glucose into gluconic acid. The rate of oxygen uptake by this system was correlated with aeration rates and agitator speeds over wide ranges of these variables, by the introduction of a liquid expansion term. The technique described provides a biological method for studying oxygen transfer in th...
متن کاملThe Production of Gluconic Acid and 2-Keto-Gluconic Acid from Glucose by Species of Pseudomonas and Phytomonas.
The production of ketogluconic acids from glucose by fermentation methods has been of particular interest to this Bureau as a means of extending the industrial utilization of agricultural products. Our investigations have led to the development of a rapid and efficient process for the production of 5-ketogluconic acid from glucose by Acetobacter suboxydans, as heretofore reported (Stubbs et al....
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ژورنال
عنوان ژورنال: Biotechnology and Bioengineering
سال: 1969
ISSN: 0006-3592,1097-0290
DOI: 10.1002/bit.260110622