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Characterization of the promising poly(3-hydroxybutyrate) producing halophilic bacterium Halomonas halophila

D. Kucera, I. Pernicová, A. Kovalcik, M. Koller, L. Mullerova, P. Sedlacek, F. Mravec, J. Nebesarova, M. Kalina, I. Marova, V. Krzyzanek, S. Obruca,

. 2018 ; 256 (-) : 552-556. [pub] 20180216

Jazyk angličtina Země Anglie, Velká Británie

Typ dokumentu časopisecké články

Perzistentní odkaz   https://www.medvik.cz/link/bmc18024341

This work explores molecular, morphological as well as biotechnological features of the highly promising polyhydroxyalkanoates (PHA) producer Halomonas halophila. Unlike many other halophiles, this bacterium does not require expensive complex media components and it is capable to accumulate high intracellular poly(3-hydroxybutyrate) (PHB) fractions up to 82% of cell dry mass. Most remarkably, regulating the concentration of NaCl apart from PHB yields influences also the polymer's molecular mass and polydispersity. The bacterium metabolizes various carbohydrates including sugars predominant in lignocelluloses and other inexpensive substrates. Therefore, the bacterium was employed for PHB production on hydrolysates of cheese whey, spent coffee grounds, sawdust and corn stover, which were hydrolyzed by HCl; required salinity of cultivation media was set up during neutralization by NaOH. The bacterium was capable to use all the tested hydrolysates as well as sugar beet molasses for PHB biosynthesis, indicating its potential for industrial PHB production.

Citace poskytuje Crossref.org

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$a Kovalcik, Adriana $u Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
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$a Koller, Martin $u Institute of Chemistry, NAWI Graz, University of Graz, Heinrichstrasse 28/III, 8010 Graz, Austria; ARENA Arbeitsgemeinschaft für Ressourcenschonende & Nachhaltige Technologien, Inffeldgasse 21b, 8010 Graz, Austria.
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$a Mullerova, Lucie $u Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
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$a Nebesarova, Jana $u Biology Centre, The Czech Academy of Sciences, V.v.i., Branisovska 31, 370 05 Ceske Budejovice, Czech Republic; University of South Bohemia, Faculty of Science, Branisovska 31, 370 05 Ceske Budejovice, Czech Republic.
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$a Kalina, Michal $u Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic.
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$a Obruca, Stanislav $u Faculty of Chemistry, Brno University of Technology, Purkynova 118, 612 00 Brno, Czech Republic. Electronic address: Stana.O@seznam.cz.
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