Per- and polyfluoroalkyl substances (PFASs) are persistent and bioaccumulative contaminants frequently detected in animal-derived foods, raising concerns for consumer health. In 2020, the European Food Safety Authority (EFSA) established a group tolerable weekly intake (TWI) of 4.4 ng/kg bw per week for four PFAS (PFOA, PFNA, PFOS, PFHxS) based on immunotoxicity, prompting the European Commission to set maximum levels in food. However, many other PFAS are present in the diet, and their cumulative risk is poorly characterized. This study applied the Relative Potency Factor (RPF) approach, using hepatic toxicity as the reference endpoint. The RPF approach addresses a key challenge in assessing human dietary exposure to PFAS by enabling cumulative risk assessment for complex mixtures found in food, moving beyond single-compound evaluations. Occurrence data from EFSA’s 2020 opinion were combined with European consumption data for fish, meat, eggs, and milk across four population groups (toddlers, adolescents, adults, elderly). Exposure estimates, expressed in PFOA equivalents, were compared with the group TWI. Results showed toddlers as the most vulnerable, with cumulative exposure approaching or exceeding TWI through fish, meat, and eggs, while milk contributed less. PFOS and PFOA were the main contributors across all food categories, with PFNA and PFDA also relevant, especially in younger populations. The findings highlight the added value of the RPF approach for cumulative PFAS risk assessment and emphasize the need for updated monitoring, refinement of potency factors for under-studied PFAS, and continued regulatory measures to protect high-risk consumers.

Glyphosate and glufosinate are among the most widely used pesticides in agriculture worldwide. Their extensive use leads to the presence of their residues on crops and in the surrounding environment. Beehives, bees, and apiculture products can represent potential sources for the accumulation of these substances and their metabolites, and the consequences for bee health, as well as the level of risk to human health from consuming contaminated food, are still unclear. Furthermore, information on the contamination levels of honey and other beehive products by these compounds remains poorly documented. This study is part of a broader research effort aimed at developing specific analytical methods for monitoring the level of these contaminants in bee products. The methodology employed enabled the acquisition of preliminary information concerning the levels of glyphosate and glufosinate contamination in honey samples obtained from various retailers in Italy to assess compliance with the limits established by Regulation 293/2013. The liquid chromatography tandem mass spectrometry analysis of the 30 honey samples revealed quantifiable levels of glyphosate in eight samples, with contamination ranging from 5.4 to 138.5 ng/g. Notably, one sample of the wildflower type showed residue levels nearly three times the maximum residue limit. Additionally, trace levels of glyphosate contamination were detected in another ten samples. It is noteworthy that glufosinate and its metabolites were not detected in any of the analyzed samples within the established method’s detection ranges.

Biogenic amines (BAs) are nitrogenous compounds naturally present in protein-rich foods, whose accumulation may indicate spoilage and pose health risks. This study presents the development and validation of a rapid LC–MS/MS method for the simultaneous quantification of six BAs—putrescine (PUT), cadaverine (CAD), histamine (HIS), tyramine (TYR), spermidine (SPD), and spermine (SPM)—in meat products, without requiring derivatisation. Sample preparation was optimized to enhance extraction efficiency and reproducibility, using 0.5 M HCl and a double-centrifugation protocol to avoid matrix interference. Chromatographic separation was optimized using a C18 column and acidified ammonium formate/acetonitrile mobile phases. The method showed good linearity (R² > 0.99), trueness between −20% and +20%, and acceptable precision (RSD_r and RSD_R ≤ 25%). Limits of quantification were established at 10 µg/g for all analytes. The method was applied to ten commercial meat samples, where PUT, TYR, and SPD were the most frequently detected amines. Although HIS and TYR levels were below toxicological thresholds for healthy individuals, one sample showed TYR levels potentially concerning for monoamine oxidase inhibitors -treated consumers. The Biogenic Amine Index (BAI) further supported product quality assessment, identifying early spoilage in selected cases. This method offers a rapid, robust and efficient tool for routine monitoring of BAs in meat products, supporting food safety and quality control initiatives.

This study aimed to demonstrate the efficacy of the analytical method proposed for the assessment of the amount of European Union (EU)-regulated perfluoroalkyl substances (PFAS) in broiler chicken livers and to perform preliminary monitoring of hepatic contamination in chickens raised in Italy under different rearing systems. A total of 21 liver samples were analyzed, revealing widespread PFAS contamination, with perfluorooctanoic acid detected in all samples at 0.48-0.66 μg/kg. Perfluorononanoic acid and perfluorohexane sulfonic acid were also found, while perfluorooctanesulfonic acid contamination was observed only in specific samples. The total PFAS amount varied across groups, even though none of the samples exceeded the EU regulatory limits. The PFAS content in livers from rural free-range chickens tended to be higher than that of their indoor counterparts (upper bound: 0.83 vs. 0.67 μg/kg; lower bound: 0.87 vs. 0.71 μg/kg, respectively; p=0.08 and p=0.06), suggesting that access to outdoor environments is a key factor involved in PFAS contamination. Further monitoring across more diverse samples is needed to confirm these preliminary findings and define mitigation strategies to reduce the risk of PFAS contamination.

Per- and polyfluoroalkyl substances (PFAS) are persistent environmental contaminants with high mobility and potential health risks. Despite growing regulatory attention, data on tissue-specific distribution in pigs remain scarce. This study aimed to assess PFAS occurrence in pig liver and muscle (longissimus dorsi, semimembranosus) to support risk-based monitoring strategies. A liquid chromatography-tandem mass spectrometry method was developed and validated for 13 PFAS, following European Union Reference Laboratory for Persistent Organic Pollutants and Regulation (EU) 2022/1428 guidelines. Liver and muscle samples from pigs reared under controlled dietary conditions were analyzed. The method showed excellent linearity, precision, and trueness; the limit of quantification (LOQ) was 0.04 μg/kg for all matrices. The perfluorooctanesulfonic acid and perfluorooctanoic acid (PFOA) were consistently detected in liver samples, whereas PFAS concentrations in the two muscle cuts remained mostly below the LOQ, with only occasional PFOA quantification in a subset of samples. None of the samples exceeded current EU maximum levels [Regulation (EU) 2023/915]. Our findings confirm a marked hepatic accumulation of PFAS and negligible contamination in muscle, showing the liver as a priority matrix for biomonitoring. Consumer exposure through pork muscle appears minimal, while offal consumption requires attention. These preliminary data contribute to defining risk-based control strategies in the pork production chain.