Preprint Review Version 1 Preserved in Portico This version is not peer-reviewed

Understanding How Chemical Pollutants Arise and Evolve in the Beer Brewing Process: A Scoping Review

Version 1 : Received: 9 May 2024 / Approved: 10 May 2024 / Online: 10 May 2024 (11:31:05 CEST)

How to cite: Pérez-Lucas, G.; Navarro, G.; Navarro, S. Understanding How Chemical Pollutants Arise and Evolve in the Beer Brewing Process: A Scoping Review. Preprints 2024, 2024050645. https://doi.org/10.20944/preprints202405.0645.v1 Pérez-Lucas, G.; Navarro, G.; Navarro, S. Understanding How Chemical Pollutants Arise and Evolve in the Beer Brewing Process: A Scoping Review. Preprints 2024, 2024050645. https://doi.org/10.20944/preprints202405.0645.v1

Abstract

In this study, a critical review was carried out using the Web of ScienceTM Core Collection database to analyse the scientific literature published to date to identify lines of research and future perspectives on the presence of chemical pollutants in beer brewing. Beer is one of the world's most popular drinks and the most consumed alcoholic beverage. However, a widespread challenge with potential implications for human and animal health is the presence of physical, chemical and/or microbiological contaminants in beer. Biogenic amines, heavy metals, mycotoxins, nitrosamines, pesticides, acrylamide, phthalates, bisphenols, microplastics and, to a lesser extent, hydrocarbons (aliphatic chlorinated and polycyclic aromatic), carbonyls, furan-derivatives, polychlorinated biphenyls and trihalomethanes are the main chemical pollutants found during the beer brewing process. Pollution sources include raw materials, technological process steps, the brewery environment and packaging materials. Different chemical pollutants have been found during the beer brewing process, from barley to beer. Brewing steps such as steeping, kilning, mashing, boiling, fermentation and clarification are critical in reducing the levels of many of these pollutants. As a result, their residual levels are usually below the maximum levels allowed by international regulations.

Keywords

chemical pollutants; beer; beer-making; health risk; raw materials

Subject

Chemistry and Materials Science, Food Chemistry

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