Characterization of short-chain poly3-hydroxybutyrate in baker's yeast.
Phytochemistry
; 69(2): 491-7, 2008 Jan.
Article
em En
| MEDLINE
| ID: mdl-17910965
ABSTRACT
A short-chain poly3-hydroxybutyrate including four comonomers, originating from a complex with calcium polyphosphate, was isolated from commercial baker's yeast cells (Saccharomyces cerevisiae) and characterized as the second complexed poly(3-hydroxyalkanoate) (cPHA) in eukaryotes. The number-average molecular weight of 4982.5 Da with a polydispersity index of 1.11 was much lower than that of beet cPHA previously isolated. End-group analysis suggested that at least 60% of the molecules form the cyclic structures. Here, the organism-dependent structural diversity of cPHAs was completely established. It was also found that a change of culture medium influences the molecular weight but not the polydispersity of baker's yeast cPHA.
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Bases de dados:
MEDLINE
Assunto principal:
Poliésteres
/
Saccharomyces cerevisiae
/
Hidroxibutiratos
Idioma:
En
Revista:
Phytochemistry
Ano de publicação:
2008
Tipo de documento:
Article
País de afiliação:
Japão