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    Biosynthesis of multi-component polyhydroxyalkanoates by the bacterium Wautersia eutropha / T. G. Volova, G. S. Kalacheva, A. Steinbuchel // Macromolecular Symposia. - 2008. - Vol. 269, Is. 1. - P1-7, DOI 10.1002/masy.200850901 . - ISSN 1022-1360
Кл.слова (ненормированные):
Autotrophic and mixotrophic growth -- Multi-component polyhydroxyalkanoates -- Wautersia eutropha -- Bacteriology -- Biochemical engineering -- Biochemistry -- Biopolymers -- Biotechnology -- Carboxylic acids -- Fatty acids -- Ketones -- Monomers -- Polymers -- Autotrophic and mixotrophic growth -- Carbon chains -- Carbon nutritions -- Even numbers -- Growth conditions -- Hydroxybutyrate -- Hydroxyvalerate -- Mixotrophic -- Multi-component polyhydroxyalkanoates -- Odd numbers -- Physico-chemical properties -- Polyhydroxyalkanoates -- Synthesis of -- Wautersia eutropha -- Wild types -- Acids
Аннотация: The study addresses the effect of different conditions of carbon nutrition on synthesis of polyhydroxyalkanoates by the bacterium Wautersia eutropha. In experiments with two wild type strains (H16 and 65786), it has been first found that under mixotrophic growth conditions - Co2 + co-substrate (alkanoic acids) - bacteria can synthesize multi-component PHAs, consisting of short- and medium-chainlength monomers with carbon chains containing 4 to 8 atoms. It has been shown that PHA composition is determined by the type of the co-substrate. Fatty acids with odd number of carbons induce bacteria to synthesize four- and five-component PHAs with hydroxybutyrate, hydroxyvalerate as major monomers and hydroxyhexanoate, hydroxyheptanoate and hydroxyoctanoate as minor, occasionally occurring, ones. Fatty acids with even number of carbons induce synthesis of not only their respective monomers (hydroxyhexanoate and hydroxyoctanoate) but also hydroxyvalerate, making possible synthesis of four-component PHAs, containing hydroxybutyrate and hydroxyhexanoate as major components (up to 18 mol%). A family of short- and medium-chain-length four- and five-component PHAs were synthesized and their physicochemical properties examined. Copyright В© 2008 WILEY-VCH Verlag GmbH & Co. KGaA.

Scopus
Держатели документа:
Institute of Biophysics, SB, RAS, 660036 Krasnoyarsk, Russian Federation
Siberian Federal University, Krasnoyarsk, Russian Federation
Institute of Molecular Microbiology and Biotechnology, Munster, Germany : 660036, Красноярск, Академгородок, д. 50, стр. 50

Доп.точки доступа:
Volova, T.G.; Kalacheva, G.S.; Steinbuchel, A.

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