Resumo

JULIAN-RICARDO, María Caridad  e  RAMOS-SANCHEZ, Luís Beltrán. Process optimization of protein enrichment of sugar cane bagasse. RTQ [online]. 2015, vol.35, n.1, pp.98-109. ISSN 2224-6185.

The importance of the processes of solid state fermentation taking place in this indispensable application of optimization in the design of new systems and for decision-making in the existing ones. The technological process have a production capacity of 100 t/d of dry product, including the preparation of the culture medium, the protein enrichment in fixed bed bioreactors, packaging and product completion. The main goal of this work is to optimize the process of protein enrichment of sugar cane bagasse from the determination of the values of the variables in the bioreactor operation: residence time and specific air flow, minimizing the cost of production unit. The process optimization was programmed modular lyon MATLAB 7.8 (2009). The optimal solution gave a residence time in the bioreactor of 11,8 hours and a specific air flow of 1,3 L kg^-1 min^-1. The minimum unit cost of production in these conditions was 74673 $/t PV. Sensitivity analysis allowed us to determine that the process is stable around the optimal.

Palavras-chave : optimization; protein enrichment; solid state fermentation; bioreactors.

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