| Revista: | Electronic journal of biotechnology |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000358105 |
| ISSN: | 0717-3458 |
| Autores: | Ebrahimpour, Afshin1 Rahman, Raja Noor Zaliha Raja Abd1 Kamarudin, Nor Hafizah Ahmad1 Basri, Mahiran2 Salleh, Abu Bakar1 |
| Instituciones: | 1Universiti Putra Malaysia, Faculty of Biotechnology and Biomolecular Sciences, Serdang, Selangor. Malasia 2Universiti Putra Malaysia, Faculty of Science, Serdang, Selangor. Malasia |
| Año: | 2011 |
| Volumen: | 14 |
| Número: | 4 |
| País: | Chile |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Aneurinibacillus thermoaerophilus strain AFNA as a novel isolated extracellular thermostable organic solvent tolerant lipase producing bacterium was employed in the present study. The lipase production of strain AFNA and its correlation with bacterial growth was studied via a modeling assessment by response surface methodology (RSM) and artificial neural network (ANN) techniques. The best achieved models were multilayer full feed forward incremental back propagation network and modified cubic response surface model (mRSM) using backward elimination. The highest lipase specific activity (13.1 Umg-1) and bacterial growth (OD600 = 3.0) were obtained at technically similar: growth temperature (53 and 53ºC), inoculum size (2.6 and 3.0%), agitation rate (118 and 115 rpm) and initial pH (7.0 and 7.2) but different medium volume (139 and 87 ml) and incubation period (48 and 38 hrs), respectively. In addition, the importance of effective parameters on the bacterial growth and lipase production was studied where pH and inoculum size were the most and the least effective factors, respectively. Significant correlation between lipase production and bacterial growth was observed when Bivariate correlation was employed to analyse the data. As a conclusion, lipase production was the result of a synergistic combination of effective parameters interactions and these parameters were in equilibrium |
| Disciplinas: | Biología |
| Palabras clave: | Biotecnología, Bacterias termofílicas, Cultivo de bacterias, Lipasas, Aneurinibacillus thermoaerophilus |
| Keyword: | Biology, Biotechnology, Thermophilic bacteria, Bacterial culture, Lipases, Aneurinibacillus thermoaerophilus |
| Texto completo: | Texto completo (Ver HTML) |
