Evaluation of ethanol production from two recombinant and a commercial strains of Saccharomyces cerevisiae (Fungi: Ascomycota) in sugar-cane molasses and rejected-banana juice from Urabá (Antioquia), Colombia

ABSTRACT: The production of bioethanol using Saccharomyces cerevisiae (Fungi: Ascomycota) is influenced by sugar concentration and fermentation substrate. For that reason, the kinetics of biomass production, residual sugars, and ethanol production of four of S. cerevisiae strains were evaluated in two different fermentation media (sugar-cane molasses and rejected-banana juice) at two different sugar concentrations (100 and 170 g/l). The EthanolRed® and GG570-CIBII strains exhibited the greatest ethanol production, with peak values of 119.74 (35 h) and 62 g/l (15 h), Yps 0.75 and 0.43 g/g, and Qp 3.42 and 2.61 g/l/h, respectively, at 170 g/l of sugar in sugar-cane molasses broth. Additionally, the strain GG570-CIBII showed an increase of 37.1 g/l ethanol with respect to the control strain.

• Autores: Peña Serna, Carolina; Castro Gil, Carolina; Peláez Jaramillo, Carlos Alberto
• Tipo de recurso: Article of investigation
• Fecha de publicación: 2012
• Institución: Universidad de Antioquia
• Repositorio: Repositorio UdeA
• Idioma: eng
• OAI Identifier: oai:bibliotecadigital.udea.edu.co:10495/21235
• Acceso en línea: http://hdl.handle.net/10495/21235; https://revistas.udea.edu.co/index.php/actbio/article/view/14239
• Palabra clave: Bioetanol; Bioethanol; Caña de azúcar; Sugar-cane; Saccharomyces; Levadura : Saccharomyces cerevisiae; Biocombustibles - Residuos de banano; Productos de la caña de azúcar; Sugarcane products; Saccharomyces cerevisiae; Melaza; Molasses; Jugo de banano de rechazo; Cerevisiae recombinante; http://aims.fao.org/aos/agrovoc/c_6724; http://aims.fao.org/aos/agrovoc/c_4889
• Rights: openAccess
• License: http://creativecommons.org/licenses/by-nc-sa/2.5/co/