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Wyszukujesz frazę "1,3-propanediol" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Screening of environmental samples for bacteria producing 1,3-propanediol from glycerol
    Autorzy:
    Dąbrowski, Sławomir
    Zabłotna, Ewa
    Pietrewicz-Kubicz, Dorota
    Długołęcka, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1039709.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    anaerobic fermentation
    Clostridium
    screening
    biodiesel
    glycerol
    1,3-propanediol
    Opis:
    Twenty nine environmental samples were screened for the presence of anaerobic microorganisms fermenting glycerol with 1,3-propanediol as a final product. Seven samples were then selected for the next step of our research and eight bacteria strains were cultured anaerobically. Seven of them produced 1,3-propanediol with a yield of 0.47-0.58. Six of the the isolated microorganisms were then classified as Clostridium butyricum (four strains), C. lituseburense (one strain), and C. sartagoforme (one strain). We suggest that of all these strains C. butyricum 2CR371.5 is the best 1,3-propanediol producer as producing no lactate as a by-product and growing well on a glycerol-containing medium.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 3; 353-356
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Biotechnological conversion of glycerol from biofuels to 1,3-propanediol using Escherichia coli
    Autorzy:
    Przystałowska, Hanna
    Lipiński, Daniel
    Słomski, Ryszard
    Powiązania:
    https://bibliotekanauki.pl/articles/1039124.pdf
    Data publikacji:
    2015
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    bioconversion
    biodiesel
    carbon source
    Escherichia coli
    glycerol
    1,3-propanediol
    Opis:
    In the face of shortage of fossil fuel supplies and climate warming triggered by excessive carbon dioxide emission, alternative resources for chemical industry have gained considerable attention. Renewable resources and their derivatives are of particular interest. Glycerol, which constitutes one of the by-products during biodiesel production, is such a substrate. Thus, generated excess glycerol may become an environmental problem, since it cannot be disposed of in the environment. The most promising products obtained from glycerol are polyols, including 1,3-propanediol, an important substrate in the production of synthetic materials, e.g. polyurethanes, unsaturated polyesters, and epoxy resins. Glycerol can be used as a carbon and energy source for microbial growth in industrial microbiology to produce 1,3-propanediol. This paper is a review of metabolic pathways of native producers and E. coli with the acquired ability to produce the diol via genetic manipulations. Culture conditions during 1,3-PDO production and genetic modifications of E. coli used in order to increase efficiency of glycerol bioconversion are also described in this paper.
    Źródło:
    Acta Biochimica Polonica; 2015, 62, 1; 23-34
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    1,3-propanediol production by Escherichia coli expressing genes of dha operon from Clostridium butyricum 2CR371.5
    Autorzy:
    Dąbrowski, Sławomir
    Pietrewicz-Kubicz, Dorota
    Zabłotna, Ewa
    Długołęcka, Anna
    Powiązania:
    https://bibliotekanauki.pl/articles/1039710.pdf
    Data publikacji:
    2012
    Wydawca:
    Polskie Towarzystwo Biochemiczne
    Tematy:
    anaerobic fermentation
    Clostridium butyricum
    Escherichia coli
    biodiesel
    dha operon
    glycerol
    1,3-propanediol
    Opis:
    1,3-propanediol is used as a monomer in the production of some polymers e.g. polytrimethylene terephthalate used in the production of carpets and textile fibers and in the thermoplastics engineering. However, the traditional chemical synthesis is expensive, generates some toxic intermediates and requires a reduction step under high hydrogen pressure. Biological production of 1,3-propanediol could be an attractive alternative to the traditional chemical methods. Moreover, crude glycerol which is a by-product of biodiesel production, can be used. We constructed a recombinant Escherichia coli strain producing 1,3-propanediol from glycerol by introducing genes of the dha operon from Clostridium butyricum 2CR371.5, a strain from our collection of environmental samples and strains. The E. coli strain produced 3.7 g of 1,3-propanediol per one litre of culture with the yield of 0.3 g per 1 g of glycerol consumed.
    Źródło:
    Acta Biochimica Polonica; 2012, 59, 3; 357-361
    0001-527X
    Pojawia się w:
    Acta Biochimica Polonica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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