Journal article Open Access
Kamravamanesh, Donya; Pflügl, Stefan; Nischkauer, Winfried; Limbeck, Andreas; Lackner, Maximilian; Herwig, Christoph
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PCC 6714</subfield> </datafield> <datafield tag="653" ind1=" " ind2=" "> <subfield code="a">Nitrogen and Phosphorus Limitation</subfield> </datafield> <controlfield tag="005">20200120171112.0</controlfield> <controlfield tag="001">3460307</controlfield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Technical University Vienna</subfield> <subfield code="a">Pflügl, Stefan</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Technical University Vienna</subfield> <subfield code="a">Nischkauer, Winfried</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Technical University Vienna</subfield> <subfield code="a">Limbeck, Andreas</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">University of Applied Sciences Technikum Vienna</subfield> <subfield code="a">Lackner, Maximilian</subfield> </datafield> <datafield tag="700" ind1=" " ind2=" "> <subfield code="u">Technical University Vienna</subfield> <subfield code="a">Herwig, Christoph</subfield> </datafield> <datafield tag="856" ind1="4" ind2=" "> <subfield code="s">1550010</subfield> <subfield code="z">md5:8e5e3e4008bdc18ecaf26c349110f341</subfield> <subfield code="u">https://zenodo.org/record/3460307/files/Photosynthetic.pdf</subfield> </datafield> <datafield tag="542" ind1=" " ind2=" "> <subfield code="l">open</subfield> </datafield> <datafield tag="260" ind1=" " ind2=" "> <subfield code="c">2017-07-06</subfield> </datafield> <datafield tag="909" ind1="C" ind2="O"> <subfield code="p">openaire</subfield> <subfield code="p">user-fhtw</subfield> <subfield code="o">oai:zenodo.org:3460307</subfield> </datafield> <datafield tag="909" ind1="C" ind2="4"> <subfield code="p">AMB Express</subfield> <subfield code="n">7</subfield> </datafield> <datafield tag="100" ind1=" " ind2=" "> <subfield code="u">Technical University Vienna</subfield> <subfield code="a">Kamravamanesh, Donya</subfield> </datafield> <datafield tag="245" ind1=" " ind2=" "> <subfield code="a">Photosynthetic poly-β-hydroxybutyrate accumulation in unicellular cyanobacterium Synechocystis sp. PCC 6714</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">user-fhtw</subfield> </datafield> <datafield tag="540" ind1=" " ind2=" "> <subfield code="u">https://creativecommons.org/licenses/by/4.0/legalcode</subfield> <subfield code="a">Creative Commons Attribution 4.0 International</subfield> </datafield> <datafield tag="650" ind1="1" ind2="7"> <subfield code="a">cc-by</subfield> <subfield code="2">opendefinition.org</subfield> </datafield> <datafield tag="520" ind1=" " ind2=" "> <subfield code="a"><p>Poly-&beta;-hydroxybutyrate (PHB) production from CO2&nbsp;has the potential to reduce the production cost of this biodegradable&nbsp;polyesters,&nbsp; and also to make the material more sustainable compared to utilization of sugar feedstocks. In&nbsp;this study the unicellular&nbsp; cyanobacterium, Synechocystis sp. PCC 6714 has been identified as an unexplored potential&nbsp;organism for production of PHB.&nbsp; Synechocystis sp. PCC 6714 was studied under various cultivation conditions and&nbsp;nutritional limitations. Combined effects of&nbsp; nitrogen and phosphorus deficiency led to highest PHB accumulation&nbsp;under photoautotrophic conditions. Multivariate experimental&nbsp; design and quantitative bioprocess development&nbsp;methodologies were used to identify the key cultivation parameters for PHB&nbsp; accumulation. Biomass growth and PHB&nbsp;accumulation were studied under controlled defined conditions in a lab-scale&nbsp; photobioreactor. Specific growth rates&nbsp;were fourfold higher in photobioreactor experiments when cultivation conditions were&nbsp; controlled. After 14 days of&nbsp;cultivation in nitrogen and phosphorus, limited media intracellular PHB levels reached up to 16.4% from&nbsp; CO2.&nbsp;The&nbsp;highest volumetric production rate of PHB was 59 &plusmn; 6 mg L&minus;1 day&minus;1. Scanning electron microscopy of isolated PHB&nbsp;granules of Synechocystis sp. PCC 6714 cultivated under nitrogen and phosphorus limitations showed an average&nbsp;diameter of&nbsp; 0.7 &mu;m. The results of this study might contribute towards a better understanding of photoautotrophic&nbsp;PHB production from&nbsp; cyanobacteria.</p></subfield> </datafield> <datafield tag="773" ind1=" " ind2=" "> <subfield code="n">doi</subfield> <subfield code="i">isVersionOf</subfield> <subfield code="a">10.5281/zenodo.3460306</subfield> </datafield> <datafield tag="024" ind1=" " ind2=" "> <subfield code="a">10.5281/zenodo.3460307</subfield> <subfield code="2">doi</subfield> </datafield> <datafield tag="980" ind1=" " ind2=" "> <subfield code="a">publication</subfield> <subfield code="b">article</subfield> </datafield> </record>
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