Structure and properties of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) produced by Alcaligenes latus
| Autor: | Yoshiharu Doi, Choong-Kyung Kang, Satoshi Kusaka |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
biology
Chemistry chemistry.chemical_element Bioengineering General Medicine Nuclear magnetic resonance spectroscopy biology.organism_classification Applied Microbiology and Biotechnology Isothermal process law.invention Differential scanning calorimetry Magazine law Copolymer Molecule Organic chemistry Alcaligenes latus Carbon Biotechnology Nuclear chemistry |
| Zdroj: | Biotechnology Letters. 17:583-588 |
| ISSN: | 1573-6776 0141-5492 |
| DOI: | 10.1007/bf00129382 |
| Popis: | Random copolymers of 3-hydroxybutyrate (3HB) and 4-hydroxybutyrate (4HB) with a wide range of compositions varying from 0 to 83 mol% 4HB were produced by Alcaligenes latus from the mixed carbon substrates of 3-hydroxybutyric and 4-hydroxybutyric acids. The structure and physical properties of P(3HB-co-4HB) were characterized by1H and13C NMR spectroscopy, gel-permeation chromatography, and differential scanning calorimetry. The isothermal radial growth rates of spherulites of P(3HB-co-4HB) were much slower than the rate of P(3HB) homopolymer. The enzymatic degradation rates of P(3HB-co-4HB) films by a PHB depolymerase were strongly influenced by the copolymer composition. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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