| Revista: | Journal of applied research and technology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000395711 |
| ISSN: | 1665-6423 |
| Autores: | Ocampo López, Carlos1 Colorado Arias, Santiago1 Ramírez Carmona, Margarita1 |
| Instituciones: | 1Universidad Pontificia Bolivariana, Facultad de Ingeniería Química, Medellín, Antioquia. Colombia |
| Año: | 2015 |
| Periodo: | Oct |
| Volumen: | 13 |
| Número: | 5 |
| Paginación: | 498-503 |
| País: | México |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Aplicado, descriptivo |
| Resumen en inglés | Modeling of microbial growth and ammonia consumption at different temperatures was developed in the production of a polyhydroxyalkanoate (PHA) biopolymer in Pseudomona fluorescens in the range of 25-35 °C. A logistic model was employed to predict accurately the microbial growth limiting conditions of nitrogen. A new model based in a mixed mathematical equation comprising a logistic model, and a magnetic saturation model resulted appropriate to estimate the ammonia consumption under limiting conditions. Favorable conditions for PHA production in P. fluorescens were found at temperature of 30 °C, reaching the maximum biomass concentration of 2.83 g L−1, and consuming 99.9% of the initial ammonia, to produce 2.13 g L−1 of PHA. The proposed models could be useful to predict the behavior of a fermentation process to produce PHA in real time |
| Disciplinas: | Biología |
| Palabras clave: | Microbiología, Biotecnología, Cultivos microbianos, Crecimiento microbiano, Consumo de nutrientes, Amoníaco, Efectos de la temperatura, Bioproducción, Polihidroxialcanoatos, Pseudomona fluorescens |
| Keyword: | Biology, Microbiology, Biotechnology, Microbial culture, Microbial growth, Nutrients consumption, Ammonia, Temperature effects, Bioproduction, Polyhydroxyalkanoates, Pseudomona fluorescens |
| Texto completo: | Texto completo (Ver HTML) |
