ArticleToxins2026
Occurrence of Ochratoxin A in Edible Pig Tissues (Kidneys, Liver, Muscle and Fat) in Greece Determined by HPLC-FD.
Article in Toxins, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study aimed to assess the occurrence and contamination levels of OTA in edible tissues of slaughtered pigs in Greece using high-performance liquid chromatography with fluorescence detection (HPLC-FD). Kidney, liver, muscle, and fat samples were collected from 1695 healthy slaughtered pigs originating from 113 swine farms across eight geographical regions of Greece and analyzed for OTA. OTA was not detected in muscle or fat samples. In contrast, OTA was detected in 99 of 1695 kidney samples (5.8%), with concentrations ranging from 0.36 to 1.36 μg/kg (mean 0.73 μg/kg; median 0.70 μg/kg). OTA-positive kidney samples were identified in four regions, with the highest prevalence recorded in the regional unit of Karditsa, within the region of Thessaly (75/105 samples; 71.4%), where the maximum OTA concentration in kidneys was observed (1.36 μg/kg). Karditsa was also the only regional unit where OTA was detected in liver samples (40/1695; 2.4%), with concentrations ranging from 0.42 to 1.08 μg/kg (mean 0.61 μg/kg; median 0.53 μg/kg). The lack of detectable OTA levels in muscle and fat indicates minimal consumer exposure through pork; nevertheless, the presence of low-level residues in kidneys and liver emphasizes the necessity for ongoing monitoring using sensitive analytical methods. Overall, OTA contamination in edible tissues was low and unevenly distributed, reflecting localized exposure likely associated with region- or farm-specific feed contamination.
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