Repositori institucional URV
| URV's Author/s: | Aceña Muñoz, Laura / Boqué Martí, Ricard / De Lima E Silva, Ana Carolina / Mestres Solé, Maria Montserrat |
| Author, as appears in the article.: | de Lima, AC; Brandao, LR; Botelho, BG; Rosa, CA; Aceña, L; Mestres, M; Boqué, R |
| Author's mail: | anacarolina.delima@urv.cat montserrat.mestres@urv.cat ricard.boque@urv.cat laura.acena@urv.cat |
| Author identifier: | 0000-0001-9805-3482 0000-0001-7311-4824 0000-0001-5942-9424 |
| Journal publication year: | 2024 |
| Publication Type: | Journal Publications |
| 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 |
| Papper original source: | Foods. 13 (1): 122- |
| Abstract: | 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. |
| Article's DOI: | 10.3390/foods13010122 |
| Link to the original source: | https://www.mdpi.com/2304-8158/13/1/122 |
| Papper version: | info:eu-repo/semantics/publishedVersion |
| licence for use: | https://creativecommons.org/licenses/by/3.0/es/ |
| Department: | Química Analítica i Química Orgànica |
| Licence document URL: | https://repositori.urv.cat/ca/proteccio-de-dades/ |
| Thematic Areas: | Plant science Microbiology Health professions (miscellaneous) Health (social science) Food science & technology Food science |
| Keywords: | Pasteurisation Microfiltration Microbiological stability Forced ageing Flavour stability Flavor Colloidal stability |
| Entity: | Universitat Rovira i Virgili |
| Record's date: | 2024-08-03 |
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