Autor segons l'article: de Lima, AC; Brandao, LR; Botelho, BG; Rosa, CA; Aceña, L; Mestres, M; Boqué, R
Departament: Química Analítica i Química Orgànica
Autor/s de la URV: Aceña Muñoz, Laura / Boqué Martí, Ricard / De Lima E Silva, Ana Carolina / Mestres Solé, Maria Montserrat
Paraules clau: Pasteurisation flavour stability colloidal stability microbiological stability forced ageing pasteurisation Microfiltration Microfiltration Microbiological stability Forced ageing Flavour stability Flavor Colloidal stability pasteurisation microbiological stability forced ageing flavour stability colloidal stability
Resum: Gas chromatography-mass spectrometry (GC-MS), physicochemical and microbiological analyses, sensory descriptive evaluation, and multivariate analyses were applied to evaluate the efficiencies of microfiltration and pasteurization processes during the shelf life of beer. Samples of microfiltered and pasteurised beer were divided into fresh and aged groups. A forced ageing process, which consisted of storing fresh samples at 55 degrees C for 6 days in an incubator and then keeping them under ambient conditions prior to analysis, was applied. Physicochemical analysis showed that both microfiltered and pasteurised samples had a slight variation in apparent extract, pH, and bitterness. The samples that underwent heat treatment had lower colour values compared with those that were microfiltered. Chromatographic peak areas of vicinal diketones increased in both fresh and aged samples. The results of the microbiological analysis revealed spoilage lactic acid bacteria (Lactobacillus) and yeasts (Saccharomyces and non-Saccharomyces) in fresh microfiltered samples. In the GC-MS analysis, furfural, considered by many authors as a heat indicator, was detected only in samples that underwent forced ageing and not in samples that were subjected to thermal pasteurisation. Finally, sensory analysis found differences in the organoleptic properties of fresh microfiltered samples compared with the rest of the samples.
Àrees temàtiques: Plant science Microbiology Health professions (miscellaneous) Health (social science) Food science & technology Food science
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
Adreça de correu electrònic de l'autor: laura.acena@urv.cat ricard.boque@urv.cat montserrat.mestres@urv.cat anacarolina.delima@urv.cat
Identificador de l'autor: 0000-0001-5942-9424 0000-0001-7311-4824 0000-0001-9805-3482
Data d'alta del registre: 2024-05-18
Versió de l'article dipositat: info:eu-repo/semantics/publishedVersion
Enllaç font original: https://www.mdpi.com/2304-8158/13/1/122
Referència a l'article segons font original: Foods. 13 (1): 122-
Referència de l'ítem segons les normes APA: de Lima, AC; Brandao, LR; Botelho, BG; Rosa, CA; Aceña, L; Mestres, M; Boqué, R (2024). Multivariate Analysis of the Influence of Microfiltration and Pasteurisation on the Quality of Beer during Its Shelf Life. Foods, 13(1), 122-. DOI: 10.3390/foods13010122
URL Document de llicència: http://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.3390/foods13010122
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2024
Tipus de publicació: Journal Publications
Repositori URV