Mycotoxins as Food Contaminants: Detection, Prevalence and Safety Assessment

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Toxicology".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 1258

Special Issue Editors


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Guest Editor
Laboratory for Analytical Chemistry, Croatian Veterinary Institute, Savska Cesta 143, 10000 Zagreb, Croatia
Interests: food quality; food safety; traditional meat products; analytical chemistry; mycotoxins

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Guest Editor
Croatian Veterinary Institute, Zagreb, Croatia
Interests: food quality; food safety; mycotoxins; growth promotors; analytical chemistry

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Guest Editor
Croatian Veterinary Institute, Zagreb, Croatia
Interests: food quality; food safety; mycotoxins; mycoflora; analytical chemistry

Special Issue Information

Dear Colleagues,

Natural toxins in food are a major food safety issue and an important natural toxin group is mycotoxins, secondary metabolites produced by moulds. They are mainly found in cereals, spices, coffee, and fruit, as well as in products of animal origin. The prevalence of mycotoxins in food and feed is influenced by various factors, considering environmental factors, biological factors, and food storage. The consumption of food contaminated with mycotoxins can have acute and long-term chronic effects and poses a significant health risk to humans. With modern analytical techniques such as LC-MS/MS, it is possible to detect very low concentrations of these substances, which is beneficial for health protection.

We invite submissions of high-quality original research articles, reviews, and short communications that have not been previously published for this Special Issue. This Special Issue will focus on methodologies for the detection of mycotoxins and mycotoxigenic moulds, their prevalence in various raw materials and food products, and the factors influencing these aspects. Additionally, it will focus on dietary exposure assessments and risk evaluation processes that are necessary to determine whether the prevalence of mycotoxins poses a health risk for consumers.

Dr. Ana Vulić
Dr. Nina Kudumija
Dr. Tina Lešić
Guest Editors

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Keywords

  • mycotoxins
  • food safety
  • analytical methods
  • occurrence
  • risk assesment
  • mycotoxigenic fungi

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Published Papers (2 papers)

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Research

13 pages, 1024 KiB  
Article
Assessing Ochratoxin A Contamination in Pre-Packaged Grated Cheese: Implications for Food Safety
by Valentina Meucci, Alessio Lenzi, Andrea Armani, Francesca Pedonese, Ludovica Ghimenti and Lucia De Marchi
Foods 2025, 14(9), 1504; https://doi.org/10.3390/foods14091504 - 25 Apr 2025
Viewed by 443
Abstract
Cheese is a globally consumed dairy product, with Europe leading the world in its consumption. Italy, as the third-largest cheese producer within the European Union, plays a crucial role in the sector, particularly through its production of Protected Designation of Origin (P.D.O.) cheeses, [...] Read more.
Cheese is a globally consumed dairy product, with Europe leading the world in its consumption. Italy, as the third-largest cheese producer within the European Union, plays a crucial role in the sector, particularly through its production of Protected Designation of Origin (P.D.O.) cheeses, including Grana Padano and Parmigiano Reggiano. These hard cheeses are widely utilized in pre-packaged grated cheese products, owing to their broad appeal and recognized quality. While mold is a common and often necessary component in cheese production for the development of flavor and texture, fungal growth can also detrimentally affect the quality of cheese, potentially causing economic losses and posing food safety risks. Some molds are capable of producing mycotoxins, such as ochratoxin A (OTA), a toxic compound that has been identified in cheese. This study aims to quantitatively assess the prevalence of OTA contamination in various pre-packaged grated cheese products using the high-performance liquid chromatography method while also exploring the potential implications for food safety. The results revealed a high incidence of OTA, with 97.6% of the samples tested positive for contamination, ranging from below the limit of detection (<LOD) to 19.15 ng g−1. Among the cheeses tested, the Parmigiano Reggiano brand exhibited the significantly highest average level of OTA contamination (5.06 ± 0.66 ng g−1), followed by pecorino (2.25 ± 0.31 ng g−1), mixed (2.15 ± 0.18 ng g−1), and the Grana Padano cheeses (1.53 ± 0.21 ng g−1). Given the widespread consumption of pre-packaged grated cheese products, these findings underscore the importance of continuous monitoring and risk assessment of cheese products, particularly pre-packaged grated varieties, due to the potential health risks associated with OTA exposure. Further investigations are essential to identify the factors contributing to OTA contamination in cheese and to support the development of regulatory standards to ensure consumer safety. Full article
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15 pages, 1438 KiB  
Article
Effect of Baking Conditions on Mycotoxin Levels in Flatbreads Prepared from Artificially Contaminated Doughs
by Kali Kotsiou, Michael A. Terzidis and Maria Papageorgiou
Foods 2025, 14(6), 910; https://doi.org/10.3390/foods14060910 - 7 Mar 2025
Viewed by 590
Abstract
This study investigated the impact of baking conditions on mycotoxin content in Greek pita bread, a single-layered flatbread baked at high temperatures for short time intervals. Dough samples were artificially contaminated with a multi-mycotoxin mixture, including aflatoxins (AFs) G2, G1, B2, and B1; [...] Read more.
This study investigated the impact of baking conditions on mycotoxin content in Greek pita bread, a single-layered flatbread baked at high temperatures for short time intervals. Dough samples were artificially contaminated with a multi-mycotoxin mixture, including aflatoxins (AFs) G2, G1, B2, and B1; ochratoxin A (OTA); deoxynivalenol (DON); and zearalenone (ZEA). Flatbreads were baked under three temperature–time combinations (220, 270, and 320 °C for 4, 2, and 1 min, respectively), with additional evaluation of a parbaking process (baking halted at 75% of the total time for each respective temperature, bread was stored at −18 °C, then bread was baked for 3 min at 180 °C). A QuEChERS-LC-MS/MS method was implemented for the determination of mycotoxins. The results demonstrated varying degrees of thermal degradation, with AFs B1 and G1 showing the highest decrease (39% on average), followed by AFG2, AFB2, ZEA, and DON (16–25%), while OTA remained relatively thermostable. Multivariate analyses classified flatbreads into two groups: higher baking temperatures and parbaking favored reductions in AFG1, AFG2, ZEA, OTA, and AFB2 levels while longer baking times at lower temperatures favored DON and AFB1 reduction. These findings provide insights for optimizing baking conditions to improve food safety in industrial and home-baking applications. Full article
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