Activated natural zeolites for beer filtration: A pilot scale approach.
| Autor: | Senila M; Research Institute for Analytical Instrumentation, INCDO-INOE 2000, 67 Donath Street, 400293, Cluj-Napoca, Romania., Coldea TE; Department of Food Engineering, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372, Cluj-Napoca, Romania., Senila L; Research Institute for Analytical Instrumentation, INCDO-INOE 2000, 67 Donath Street, 400293, Cluj-Napoca, Romania., Mudura E; Department of Food Engineering, University of Agricultural Sciences and Veterinary Medicine, 3-5 Manastur Street, 400372, Cluj-Napoca, Romania., Cadar O; Research Institute for Analytical Instrumentation, INCDO-INOE 2000, 67 Donath Street, 400293, Cluj-Napoca, Romania. |
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| Jazyk: | angličtina |
| Zdroj: | Heliyon [Heliyon] 2023 Sep 09; Vol. 9 (9), pp. e20031. Date of Electronic Publication: 2023 Sep 09 (Print Publication: 2023). |
| DOI: | 10.1016/j.heliyon.2023.e20031 |
| Abstrakt: | A clinoptilolite-rich natural zeolite was tested as a substitute for kieselguhr as a filtering material to eliminate ingredients that cause beer haze formation. Two-grain sizes of micronized natural zeolite were thermally activated to 400 °C, to enhance its adsorption performance and remove the impurities adsorbed in the microporous system of zeolites, followed by their physicochemical characterization. The activated zeolites mixed with four commercial filter aids in different ratios were used for beer filtration at the pilot scale. Most of the physicochemical and sensory characteristics of beers filtered with commercial filter aids and with zeolites were similar. Using zeolite in filtering mixtures significantly reduces the number of microorganisms present in the filtered beer, which can eliminate the necessity of beer sterilization after filtration. The results evidenced that activated natural zeolites, which are cheap materials, are promising candidates as filter aids and can replace kieselguhr without producing any degradation of the beer filtration process. Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (© 2023 The Authors.) |
| Databáze: | MEDLINE |
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