Autor según el artículo: María del C. Portillo; Jessica Lleixà; Valentina Martín; Francisco Carrau; Gemma Beltran; Albert Mas
Departamento: Bioquímica i Biotecnologia
Autor/es de la URV: PORTILLO GUISADO, MARIA DEL CARMEN; Jessica Lleixà; Valentina Martín; Francisco Carrau; BELTRAN CASELLAS, GEMMA; MAS BARON, ALBERTO
Palabras clave: Fermentation Hanseniaspora Saccharomyces
Resumen: Interest in the use of non-Saccharomyces yeasts in winemaking has been increasing due to their positive contributions to wine quality. The non-Saccharomyces yeast Hanseniaspora vineae is an apiculate yeast that has been associated with the production of wine with good aromatic properties. However, little is known about the fermentation dynamics of H. vineae in natural must and its interaction with autochthonous yeasts. In the present study, we performed semi industrial fermentations of Macabeo and Merlot musts inoculated with either H. vineae or S. cerevisiae. The yeast population dynamics were monitored by plate culturing, PCR-DGGE and massive sequencing techniques. The results obtained with these techniques show that H. vineae was able dominate the autochthonous microbiota in Macabeo must but not in Merlot must, which exhibited a larger, more diverse yeast population. The presence of H. vineae throughout most of the Macabeo fermentation resulted in more fruity and flowery wine, as indicated by the chemical analysis of the final wines, which demonstrated a strong presence of phenyl ethyl acetate at concentrations higher than the threshold of perception and approximately 50 times more than that produced in wines fermented with S. cerevisiae. This compound is associated with fruity, floral and honey aromas.
Grupo de investigación: Biotecnologia Enològica
Áreas temáticas: Enologia Enología Oenology
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1664-302X
Identificador del autor: 0000-0002-4576-0244; n/a; n/a; n/a; 0000-0002-7071-205X; 0000-0002-0763-1679
Fecha de alta del registro: 2016-05-18
Volumen de revista: 7
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2016
Página inicial: Article number 338
Tipo de publicación: Article Artículo Article
Repositori URV