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| Format: | Artículo científico |
| Language: | en |
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Universidad Nacional Autónoma de México
2015
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| Online Access: | https://www.redalyc.org/articulo.oa?id=47442802002 |
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Table of Contents:
- Modeling of microbial growth and ammonia consumption at different temperatures in the production of a polyhydroxyalkanoate (PHA) biopolymer Carlos Ocampo-López Santiago Colorado-Arias Margarita Ramírez-Carmona Ingeniería PHA Modeling Microbial growth Temperature effect Ammonia consumption 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. All Rights Reserved © 2015 Universidad Nacional Autónoma de México, Centro de Ciencias Aplicadas y Desarrollo Tecnológico. This is an open access item distributed under the Creative Commons CC License BY-NC-ND 4.0. 2015 artículo científico 1665-6423 https://www.redalyc.org/articulo.oa?id=47442802002 en http://www.redalyc.org/revista.oa?id=474 Journal of Applied Research and Technology application/pdf Universidad Nacional Autónoma de México Journal of Applied Research and Technology (México) Num.5 Vol.13