Evaluación de Cepas Fermentativas en la Hidrólisis y Fermentación Simultáneas (SSF) de Cascarilla de Arroz para la Producción de Bioetanol

Authors

  • Ana M Arismendy UTN FR Resistencia - CONICET
  • Mariano J. Sequeira UTN FR Resistencia - CONICET
  • Fernando E. Felissia UNAM - CONICET
  • María C. Area UTN FR Resistencia - CONICET - UNAM
  • Ester R. Chamorro UTN FR Resistencia - CONICET

Keywords:

Bioethanol, Rice husk, Simultaneous Sacharification and Fermentation (SSF), Enzymes

Abstract

The decrease in oil reserves worldwide and environmental problems caused by its use, lead to finding new renewable and less polluting alternatives.
This work presents the study of the behavior of both celobiosas and cellulase enzymes, together with strains of Saccharomyces cerevisiae, Candida kefyr, Candida tropicalis and Candida guilliermondii, specifically in the process of simultaneous hydrolysis and fermentation (SSF) conducted at 35 °C to produce bioethanol from the carbohydrates of rice husks.
This process seeks hydrolyze the cellulose and immediately utilize of fermentable sugars, overcoming the difficulty of the difference between the optimum temperature for the performance of enzyme (50°C) and yeast (25°C to 35°C). Rice husk was pretreated with an acid-alkaline sequence to achieve the separation of carbohydrates.
The best yields to bioethanol were obtained with Saccharomyces cerevisiae (68%) and Candida kefyr (75%).

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Published

2018-07-01

How to Cite

Arismendy, A. M., Sequeira, M. J., Felissia, F. E., Area, M. C., & Chamorro, E. R. (2018). Evaluación de Cepas Fermentativas en la Hidrólisis y Fermentación Simultáneas (SSF) de Cascarilla de Arroz para la Producción de Bioetanol. Technology and Science Magazine, (30), 357–363. Retrieved from https://rtyc.utn.edu.ar/index.php/rtyc/article/view/179

Issue

No. 30 (2017): CIPP 2016

Section

Artículos