Autor según el artículo: Iturritxa, E; Hill, AE; Torija, MJ
Departamento: Bioquímica i Biotecnologia
Autor/es de la URV: Iturricha Vélez Del Burgo, María Eugenia / Torija Martínez, María Jesús
Palabras clave: Wild yeast screening Vitis vinifera Saccharomyces Quercus spp. Non-saccharomyces
Resumen: The brewing ability of wild yeast strains obtained from forest and vineyards ecosystems was analysed and compared with commercial yeast strains. The selection of new yeast strains as a way to create new beer aromas and flavours and to use local strains to promote the proximity ingredients in brewing is a topic of interest in the craft beer sector. Seventy-six wild Saccharomyces and non-Saccharomyces isolates and eighteen control strains were evaluated for their enzymatic activity and brewing capacity. The early screening system was set up to profile their enzymatic activity, utilisation of wort sugars and the effect of hop acids and ethanol on yeast growth. The microvolume screening method allows a large number of samples to be studied at the same time, permitting an affordable and rapid characterization in a relatively short period of time. Twenty-eight strains were selected using this method and tested in small-scale fermentations. Finally, three of these strains, all belonging to the species Lachancea thermotolerans, showed great potential and adaptability to ferment different wort styles, although further studies will be necessary to test their possibilities as beer starters. Understanding yeast enzymatic profiles and the influence of beer ingredients on their fermentation activity provides a platform to select strains for further consideration in brewing research.
Áreas temáticas: Zootecnia / recursos pesqueiros Saúde coletiva Safety, risk, reliability and quality Química Odontología Nutrição Microbiology Medicine (miscellaneous) Medicina veterinaria Medicina ii Medicina i Interdisciplinar Geociências General medicine Food science & technology Food science Farmacia Engenharias ii Ciências biológicas iii Ciências biológicas ii Ciências biológicas i Ciências agrárias i Ciência de alimentos Biotecnología Biodiversidade
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: eugenia.iturritxa@estudiants.urv.cat mjesus.torija@urv.cat
Identificador del autor: 0000-0002-6390-5873 0000-0001-6419-0745
Fecha de alta del registro: 2024-08-03
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.sciencedirect.com/science/article/pii/S0168160523001034
URL Documento de licencia: https://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: International Journal Of Food Microbiology. 394 110187-
Referencia de l'ítem segons les normes APA: Iturritxa, E; Hill, AE; Torija, MJ (2023). Profiling potential brewing yeast from forest and vineyard ecosystems. International Journal Of Food Microbiology, 394(), 110187-. DOI: 10.1016/j.ijfoodmicro.2023.110187
DOI del artículo: 10.1016/j.ijfoodmicro.2023.110187
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2023
Tipo de publicación: Journal Publications