Citrinin

Citrinin is a mycotoxin produced by several species of the genus Penicillium, Aspergillus, and Monascus. It was first isolated in 1931 from a strain of Penicillium citrinum. Since then, it has been identified in over 25 species of Penicillium and several species of Aspergillus. Citrinin is commonly found in stored grains, especially in conditions that favor the growth of molds, such as high humidity and temperature. It has also been detected in various food products, including cereals, cheese, beer, and meat products, posing a potential risk to human and animal health.

Toxicity and Health Effects

Citrinin can cause kidney damage and has been shown to have nephrotoxic effects in several animal species. The toxin interferes with cellular processes in the kidneys, leading to cell death and impaired kidney function. In addition to its nephrotoxicity, citrinin can also exhibit hepatotoxic, immunotoxic, and genotoxic effects. Its potential to cause DNA damage raises concerns about its carcinogenic risk, although direct evidence in humans is limited.

The presence of citrinin in food products is regulated in several countries, with specific limits set for maximum allowable concentrations. However, the lack of comprehensive global regulations and the variability in detection methods make exposure assessment challenging.

Detection and Control

Efforts to detect and control citrinin contamination focus on improving food storage conditions and developing sensitive detection methods. Techniques such as high-performance liquid chromatography (HPLC), mass spectrometry, and enzyme-linked immunosorbent assay (ELISA) have been employed for the quantification of citrinin in food products. Preventive measures include controlling humidity and temperature during storage, using mold inhibitors, and implementing good agricultural and manufacturing practices.

Conclusion

Citrinin is a mycotoxin of significant concern due to its potential health effects, including nephrotoxicity and genotoxicity. While regulations exist in some countries to limit exposure, global efforts to standardize detection methods and establish comprehensive guidelines are needed to protect public health.

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  Chemical structure of Citrinin

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  3D space-filling model of Citrinin

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  Structures of Citrinin and its decomposition products