| Journal: | Brazilian journal of chemical engineering |
| Database: | PERIÓDICA |
| System number: | 000308910 |
| ISSN: | 0104-6632 |
| Authors: | Duarte, M.V.E1 Medeiros, J.L Araujo, O.Q.F Coelho, M.A.Z |
| Institutions: | 1Universidade Federal do Rio de Janeiro, Escola de Quimica, Rio de Janeiro. Brasil |
| Year: | 2003 |
| Season: | Mar |
| Volumen: | 20 |
| Number: | 1 |
| Pages: | 1-6 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | This work presents an age-structured population balance model (ASPBM) for a bioprocess in a continuous stirred-tank fermentor. It relates the macroscopic properties and dynamic behavior of biomass to the operational parameters and microscopic properties of cells. Population dynamics is governed by two time- and age-dependent density functions for living and dead cells, accounting for the influence of substrate and dissolved oxygen concentrations on cell division, aging and death processes. The ASPBM described biomass and substrate oscillations in aerobic continuous cultures as experimentally observed. It is noteworthy that a small data set consisting of nonsegregated measurements was sufficient to adjust a complex segregated mathematical model |
| Disciplines: | Química |
| Keyword: | Fermentaciones, Biotecnología, Levaduras, Dinámica de poblaciones, Bioprocesos, Tanques agitados |
| Keyword: | Chemistry, Fermentation, Biotechnology, Yeasts, Population dynamics, Bioprocesses, Stirred tanks |
| Full text: | Texto completo (Ver HTML) |
