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metadata.artigo.dc.title: 2-Phenylethanol and 2-phenylethylacetate production by nonconventional yeasts using tequila vinasses as a substrate
metadata.artigo.dc.creator: Rodríguez-Romero, José de Jesús
Aceves-Lara, César Arturo
Silva, Cristina Ferreira
Gschaedler, Anne
Amaya-Delgado, Lorena
Arrizon, Javier
metadata.artigo.dc.subject: 2 phenylethanol
2 phenylethylacetate
Nonconventional yeasts
Tequila vinasses
Metabolic modeling
Álcool fenetílico
Acetato de fenetila
Leveduras não convencionais
Modelagem metabólica
metadata.artigo.dc.publisher: Elsevier B.V. 2020
metadata.artigo.dc.identifier.citation: RODRÍGUEZ-ROMERO, J. de J. et al. 2-Phenylethanol and 2-phenylethylacetate production by nonconventional yeasts using tequila vinasses as a substrate. Biotechnology Reports, [S. I.], v. 25, Mar. 2020. DOI:
metadata.artigo.dc.description.abstract: Vinasses from the tequila industry are wastewaters with highly elevated organic loads. Therefore, to obtain value-added products by yeast fermentations, such as 2-phenylethanol (2-PE) and 2-phenylethylacetate (2-PEA), could be interesting for industrial applications from tequila vinasses. In this study, four yeasts species (Wickerhamomyces anomalus, Candida glabrata, Candida utilis, and Candida parapsilosis) were evaluated with two different chemically defined media and tequila vinasses. Differences in the aroma compounds production were observed depending on the medium and yeast species used. In tequila vinasses, the highest concentration (65 mg/L) of 2-PEA was reached by C. glabrata, the inhibitory compounds decreased biomass production and synthesis of 2-PEA, and biochemical and chemical oxygen demands were reduced by more than 50 %. Tequila vinasses were suitable for the production of 2-phenylethylacetate by the shikimate pathway. A metabolic network was developed to obtain a guideline to improve 2-PE and 2-PEA production using flux balance analysis (FBA).
metadata.artigo.dc.language: en
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