Novel extracellular polymeric substances produced byCupriavidus necatorIPT 027 grown on glucose and crude glycerol originated from biodiesel
| Autor: | Paulo Leonardo Lima Ribeiro, Márcio Inomata Campos, Janice Izabel Druzian |
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| Rok vydání: | 2016 |
| Předmět: |
Arabinose
chemistry.chemical_classification Polymers and Plastics biology 010405 organic chemistry Chemistry Exopolymer Cupriavidus necator Mannose 02 engineering and technology Uronic acid 021001 nanoscience & nanotechnology biology.organism_classification 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Extracellular polymeric substance Glycerol Organic chemistry Monosaccharide Food science 0210 nano-technology |
| Zdroj: | Polymers for Advanced Technologies. 28:549-556 |
| ISSN: | 1042-7147 |
| DOI: | 10.1002/pat.3957 |
| Popis: | The aim of this study was to evaluate the production and properties of novel extracellular polymeric substances (EPS) from glucose (EPS 1) and crude glycerol (CG) from castor beans oil (EPS 2). Cupriavidus necator IPT 027 cultivated with glucose and CG (35 °C, 150 rpm, 72 hr, pH 7, shaker) produced approximately 1.60 ± 0.01 and 2.83 ± 0.02 g l−1 EPS, respectively, with high-molecular weight (3.89 × 105 and 1.89 × 107 Da) and constituted of different functional groups such as uronic acid, monosaccharides (glucose, mannose, arabinose, and fucose) and primary amine group. The composition of the fermentable substrate influenced the melting temperature (221.11 and 230.18 °C), crystallinity (34.36% and 37.11%), degradation temperature (255.06 and 296.62 °C) and morphology. EPS showed pseudoplastic non-Newtonian fluid behavior in the aqueous solutions, presenting potential applicability biotechnological and industrial mainly in food industry as emulsifiers and biosurfactants. This is the first study on the production and characterization of EPS obtained by C. necator IPT 027 in culture with glucose and CG. Copyright © 2016 John Wiley & Sons, Ltd. |
| Databáze: | OpenAIRE |
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