Тип публикации: статья из журнала
Год издания: 2011
Идентификатор DOI: 10.1134/S0003683811050152
Ключевые слова: Bacteria (microorganisms), Cupriavidus, Cupriavidus necator
Аннотация: Synthesis of 3- and 4-hydroxybutyrate copolymer (3HB-co-4HB), the most promising member of the biodegradable polyhydroxyalkanoate (PHA) family, has been studied. Cultivation conditions of naturally occurring strains of hydrogen-oxidizing bacteria Ralstonia eutropha B5786 and Cupriavidus eutrophus B10646 have been optimized to ensurПоказать полностьюe efficient synthesis of the 3HB-co-4HB copolymer. A set of highly pure samples of the 3HB-co-4HB copolymer with 4HB content varying from 8.7 to 24.3 mol% has been obtained. Incorporation of 4HB into the copolymer was shown to cause a more pronounced decrease in polymer crystallinity than the incorporation of 3-hydroxyvalerate or 3-hydroxyhexanoate; samples with a degree of crystallinity below 30% have been obtained. The weight average molecular mass of the 3HB-co-4HB copolymers was shown to be independent on the monomer ratio and to vary broadly (from 540 to 1110 kDa).
Журнал: APPLIED BIOCHEMISTRY AND MICROBIOLOGY
Выпуск журнала: Vol. 47, Is. 5
Номера страниц: 494-499
ISSN журнала: 00036838
Место издания: NEW YORK
Издатель: MAIK NAUKA/INTERPERIODICA/SPRINGER