What do we know about the yeast strains from the Brazilian fuel ethanol industry?

Autor(es)

Della-Bianca, Bianca Eli ^[1] ; Basso, Thiago Olitta ^[1] ; Stambuk, Boris Ugarte ^[2] ; Basso, Luiz Carlos ^[3] ; Gombert, Andreas Karoly ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Dept Chem Engn, BR-05424970 Sao Paulo - Brazil

^[2] Univ Fed Santa Catarina, Dept Bioquim, Florianopolis, SC - Brazil

^[3] Univ Sao Paulo, Dept Biol Sci, Piracicaba, SP - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: Applied Microbiology and Biotechnology; v. 97, n. 3, p. 979-991, FEB 2013.
• Citações Web of Science: 67
• Assunto(s): Etanol Fermentação alcoólica Saccharomyces cerevisiae

Resumo

The production of fuel ethanol from sugarcane-based raw materials in Brazil is a successful example of a large-scale bioprocess that delivers an advanced biofuel at competitive prices and low environmental impact. Two to three fed-batch fermentations per day, with acid treatment of the yeast cream between consecutive cycles, during 6-8 months of uninterrupted production in a nonaseptic environment are some of the features that make the Brazilian process quite peculiar. Along the past decades, some wild Saccharomyces cerevisiae strains were isolated, identified, characterized, and eventually, reintroduced into the process, enabling us to build up knowledge on these organisms. This information, combined with physiological studies in the laboratory and, more recently, genome sequencing data, has allowed us to start clarifying why and how these strains behave differently from the better known laboratory, wine, beer, and baker's strains. All these issues are covered in this minireview, which also presents a brief discussion on future directions in the field and on the perspectives of introducing genetically modified strains in this industrial process. (AU)

• Processo FAPESP: 07/59776-7 - Engenharia evolutiva de leveduras
• Beneficiário: Andreas Karoly Gombert
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular
• Processo FAPESP: 10/07187-0 - Tolerância de Saccharomyces cerevisiae a fatores de estresse da produção industrial de bioetanol
• Beneficiário: Bianca Eli Della Bianca
• Modalidade de apoio: Bolsas no Brasil - Doutorado Direto