| Revue: | Electronic journal of biotechnology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000398150 |
| ISSN: | 0717-3458 |
| Autores: | Bernal, Mauricio1 Tinoco, Lizeth K1 Torres, Luz1 Malagón Romero, Dionisio2 Montoya, Dolly1 |
| Instituciones: | 1Universidad Nacional de Colombia, Instituto de Biotecnología, Bogotá. Colombia 2Universidad Santo Tomás, Facultad de Ingeniería Mecánica, Bogotá. Colombia |
| Año: | 2013 |
| Volumen: | 16 |
| Número: | 2 |
| Paginación: | 1-13 |
| País: | Chile |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Analítico, descriptivo |
| Resumen en inglés | The ability for hydrogen production of 13 native strains of Clostridium spp. strains isolated from Colombian soil was evaluated using glycerol substrate. Glycerol to hydrogen conversion was investigated using a batch fermentation reactor and industrial glycerol source (50 g.l - 1 , pH 7.00). Results: The results were quantified regarding acids, hydrogen, biomass and solvent production. The selected strain gave good hydrogen over production output at 14.4 mmol H 2 .l - 1 , productivity 0.3167 mg H 2 .h - 1 l - 1 cultur e mediumand yield 0.1962 mol H 2 .mol - 1 glycerol. A further fermentation assay a 4.0 liter batch reactor let to being 0.26 mg.l - 1 .h - 1 after 18 hrs of fermentation. Logistic model, Luedeking - Piret model and Luedeking - Piret modified models were used for modeling changes in cell growth, hydrogen production and substrate consumption (Correlation coefficients R 2 = 0.95 for biomass substrate, R 2 = 0.77 hydrogen production). Conclusions: Our results indicate that hydrogen production through glycerol bioconversion by native strains is possible |
| Disciplinas: | Biología, Ingeniería, Matemáticas |
| Palabras clave: | Bacterias, Ingeniería de energéticos, Matemáticas aplicadas, Fermentación anaeróbica, Biocombustibles, Clostridium, Glicerol, Hidrógeno, Modelos matemáticos |
| Keyword: | Biology, Engineering, Mathematics, Bacteria, Energy engineering, Applied mathematics, Anaerobic fermentation, Biofuels, Clostridium, Glycerol, Hydrogen, Mathematical models |
| Texte intégral: | Texto completo (Ver PDF) |
