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, Carbon monoxide, Carboxydobacteria, Poly(3-hydroxybutyrate), Synthesis, carbon monoxide, nitrogen, poly(3 hydroxybutyric acid), polyhydroxyalkanoic acid, sulfur, carbon monoxide, 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, synthesis, drug effects, gas, metabolism, oxidation reduction reaction, Pseudomonas, Biomass, Carbon Monoxide, Gases, Hydrogen, Hydroxybutyrates, Nitrogen, Oxidation-Reduction, Oxygen, Polyesters, Pseudomonas, Sulfur

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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