These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Production of two monomer structures containing medium-chain-length polyhydroxyalkanoates by beta-oxidation-impaired mutant of Pseudomonas putida KT2442.
    Author: Ma L, Zhang H, Liu Q, Chen J, Zhang J, Chen GQ.
    Journal: Bioresour Technol; 2009 Oct; 100(20):4891-4. PubMed ID: 19505819.
    Abstract:
    Pseudomonas putida KT2442 produces medium-chain-length (MCL) polyhydroxyalkanoates (PHA) from fatty acids. When gene encoding 3-hydroxyacyl-CoA dehydrogenase which catalyzes long-chain-3-hydroxyacyl-CoA to 3-ketoacyl-CoA, was partially or completely deleted in P. putida KTOY08, the PHA accumulated was shown to contain only two different monomer structures dominated by a monomer of the same chain length as that of the fatty acids fed and another monomer two carbon atoms shorter. Among the PHA copolymers, P(44% 3HD-co-3HDD) containing 44% 3HD and 56% 3HDD was demonstrated to have a melting temperature T(m), an apparent heat of fusion DeltaH(m) and a Young's modulus E of 75 degrees C, 51 J g(-1) and 2.0 MPa, respectively, the highest among all the MCL PHA studied.
    [Abstract] [Full Text] [Related] [New Search]