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Potential of Various Archae‐ and Eubacterial Strains as Industrial Polyhydroxyalkanoate Producers from Whey by Martin Koller; Paula Hesse; Rodolfo Bona; Christoph Kutschera; Aid Atlić; Gerhart Braunegg is a Materials Science article available to read on EtoBox.

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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 · g^−1^ · h^−1^). Using __P. hydrogenovora__, the final percentage of poly‐3‐hydroxybutyrate (PHB) amounted to 12 wt.‐% (__q__~p~: 2.9 mg · g^−1^ · 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 · g^−1^ · h^−1^). A detailed characterization of the isolated biopolyesters and an evaluation with regard to the economic feasibility completes the study. magnified image

Who reads Potential of Various Archae‐ and Eubacterial Strains as Industrial Polyhydroxyalkanoate Producers from Whey?

Author

Martin Koller; Paula Hesse; Rodolfo Bona; Christoph Kutschera; Aid Atlić; Gerhart Braunegg

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1616-5187)

Published

2007

Language

EN

Field

Materials Science (Physical Sciences)