Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Koller, M; Hesse, P; Bona, R; Kutschera, C; Atlic, A; Braunegg, G.
Potential of various archae- and eubacterial strains as industrial polyhydroxyalkanoate producers from whey.
Macromol Biosci. 2007; 7(2): 218-226.
Doi: 10.1002/mabi.200600211
Web of Science
PubMed
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- Co-Autor*innen der Med Uni Graz
- Kutschera Christoph
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- Abstract:
- Three different microbial wild-type strains are compared with respect to their potential as industrial scale polyhydroxyalkanoate (PHA) producers from the feed stock whey lactose. The halophilic archaeon Haloferax mediterranei as well as two eubacterial strains (Pseudomonas hydrogenovora and Hydrogenophaga pseudoflava) are investigated. H. mediterranei accumulated 50 wt.-% of poly-3-(hydroxybutyrate-co-8%-hydroxyvalerate) from hydrolyzed whey without addition of 3-hydroxyvalerate (3HV) precursors (specific productivity q(p): 9.1 mg x g(-1) x h(-1)). Using P. hydrogenovora, the final percentage of poly-3-hydroxybutyrate (PHB) amounted to 12 wt.-% (q(p): 2.9 mg x g(-1) x h(-1)). With H. pseudoflava, it was possible to reach 40 wt.-% P-3(HB-co-5%-HV) on non-hydrolyzed whey lactose plus addition of valeric acid as 3HV precursor (q(p): 12.5 mg x g(-1) x h(-1)). A detailed characterization of the isolated biopolyesters and an evaluation with regard to the economic feasibility completes the study.
- Find related publications in this database (using NLM MeSH Indexing)
- Animals -
- Biomass -
- Bioreactors -
- Biotechnology - methods
- Calorimetry, Differential Scanning - methods
- Comamonadaceae - metabolism
- Haloferax mediterranei - metabolism
- Hydroxy Acids - metabolism
- Hydroxybutyrates - metabolism
- Kinetics - metabolism
- Milk - chemistry
- Pentanoic Acids - chemistry
- Polyesters - chemistry
- Polymers - metabolism
- Pseudomonas - metabolism
- Find related publications in this database (Keywords)
- biopolymers
- high performance polymers
- polyhydroxyalkanoates
- renewable resources
- whey