Determination of Oxygen Solubility in Liquid Media | Zendy

Francielo Vendruscolo | Zendy; Márcio José Rossi | Zendy; Willibaldo Schmidell | Zendy; Jorge Luiz Ninow | Zendy

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Determination of Oxygen Solubility in Liquid Media

Author(s) -

Francielo Vendruscolo,

Márcio José Rossi,

Willibaldo Schmidell,

Jorge Luiz Ninow

Publication year - 2012

Publication title -

isrn chemical engineering

Language(s) - English

Resource type - Journals

ISSN - 2090-861X

DOI - 10.5402/2012/601458

Subject(s) - distilled water , solubility , oxygen , saturation (graph theory) , hydrogen peroxide , chemistry , analytical chemistry (journal) , limiting oxygen concentration , chromatography , biochemistry , mathematics , organic chemistry , combinatorics

The present work aimed at determining the oxygen saturation in culture medium used in the production of pigments by Monascus ruber CCT 3802. This estimation allows the correction and the minimization of errors on the specific oxygen uptake rates determination because the conversion of oxygen partial pressure to oxygen concentration requires accurate information on oxygen solubility in experimental incubation media. By adding hydrogen peroxide and then transforming into water and oxygen using catalase, it was possible to determinate the saturation concentration of 7.677 and 6.772 mgO2L−1 in distilled water and in growth medium, respectively. The determination of these parameters makes possible the minimization of errors on the specific oxygen uptake rates determination, once many studies consider the saturation concentration in distilled water.

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