Synthesis of poly(3-hydroxybutyrate) by the autotrophic CO-oxidizing bacterium Seliberia carboxydohydrogena Z-1062 | Научно-инновационный портал СФУ

Synthesis of poly(3-hydroxybutyrate) by the autotrophic CO-oxidizing bacterium Seliberia carboxydohydrogena Z-1062

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1007/s10295-015-1659-9

Ключевые слова: Carboxydobacteria, Synthesis, Poly(3-hydroxybutyrate), Carbon monoxide, nitrogen, poly(3 hydroxybutyric acid), polyhydroxyalkanoic acid, sulfur, gas, hydrogen, hydroxybutyric acid, oxygen, poly-beta-hydroxybutyrate, polyester, Article, bacterial growth, bacterial strain, bacterium, bacterium culture, biomass, chemical composition, controlled study, molecular weight, nonhuman, productivity, Seliberia carboxydohydrogena, drug effects, metabolism, oxidation reduction reaction, Pseudomonas, Gases, Hydroxybutyrates, Oxidation-Reduction, Polyesters

Аннотация: The present study addresses growth parameters and physiological and biochemical characteristics of the aerobic CO-oxidizing carboxydobacterium Seliberia carboxydohydrogena Z-1062. Poly(3-hydroxybutyrate) yields were investigated in experiments with limiting concentrations of mineral nutrients (nitrogen or sulfur or nitrogen and sulfur) in batch culture of S. carboxydohydrogena Z-1062 grown on gas mixtures consisting of CO2, O-2, H-2, and CO. CO concentrations of 10, 20, and 30 % v/v did not affect polymer synthesis, whose content after 56-h cultivation under limiting concentrations of nitrogen and sulfur was 52.6-62.8 % of biomass weight at a productivity of 0.13-0.22 g/L h. The inhibitory effect of CO on cell concentration was revealed at CO concentration of 30 % v/v. That also caused a decrease in substrate (H-2 and O-2) use efficiency. Thus, this carboxydobacterium can be regarded as a potential producer of polyhydroxyalkanoates from industrial hydrogenous sources.

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Выпуск журнала: Vol. 42, Is. 10

Номера страниц: 1377-1387

ISSN журнала: 13675435

Место издания: HEIDELBERG



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