Polyhydroxyalkanoate (PHA) biosynthesis from whey lactose

dc.contributorKoller, M., Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 12, 8010 Graz, Austria; Atli?, A., Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 12, 8010 Graz, Austria; Gonzalez-Garcia, Y., University of Guadalajara, Chemical Engineering Department, Blvd. Marcelino Garc�a 1421, Guadalajara, Jalisco, Mexico; Kutschera, C., Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 12, 8010 Graz, Austria; Braunegg, G., Graz University of Technology, Institute of Biotechnology and Biochemical Engineering, Petersgasse 12, 8010 Graz, Austria
dc.creatorKoller, M.
dc.creatorAtlic, A.
dc.creatorGonzalez-Garcia, Y.
dc.creatorKutschera, C.
dc.creatorBraunegg, G.
dc.date.accessioned2015-09-15T18:40:26Z
dc.date.accessioned2023-07-04T02:44:42Z
dc.date.available2015-09-15T18:40:26Z
dc.date.available2023-07-04T02:44:42Z
dc.date.created2015-09-15T18:40:26Z
dc.date.issued2008
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-55849135137&partnerID=40&md5=997e98fdc8fb8d4b9a99c56d3304df82
dc.identifierhttp://hdl.handle.net/20.500.12104/43702
dc.identifier10.1002/masy.200851212
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/7262883
dc.description.abstractThe potential of three different microbial wild type strains as polyhydroxyalkanoate (PHA) producers from whey lactose is compared. Homopolyester and co-polyester biosynthesis was investigated by the archaeon Haloferax mediterranel and the eubacterial strains Pseudomonas hydrogenovora and Hydrogenophaga pseudofiava. H. mediterranei accumulated 50 wt.-% of poly-3-(hydroxybutyrate-co-6%-hydroxyvalerate) in cell dry mass from hydrolyzed whey without addition of 3-hydroxyvalerate (3HV) precursors (specific productivity qp: 2.9 mg/g h). Using P. hydrogenovora, the final percentage of poly-3-hydroxybutyrate (PHB) amounted to 12 wt.-% (qp: 0.03 g/g h); co-feeding of valeric acid resulted in the production of 12 Wt.-%. P-3(HB-co-21%-HV) (qp: 0.02 g/g h). With H. pseudoflava, it was possible to reach 40 wt.-% P-3 (HB-co-5%-HV) on not-hydrolyzed whey lactose plus valeric acid as 3HV precursor (qp: 9.1 mg/g h); on hydrolyzed whey lactose without addition of valeric acid, the strain produced 30 wt.-% of PHB (qp: 0.16 g/g h). The characterization of the isolated biopolyesters completes the study. Copyright 2008 WILEY-VCH Verlag GmbH & Co. KGaA.
dc.relationScopus
dc.relationMacromolecular Symposia
dc.relation272
dc.relation1
dc.relation87
dc.relation92
dc.titlePolyhydroxyalkanoate (PHA) biosynthesis from whey lactose
dc.typeConference Paper


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