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Introduction <p>Medicinal plants are extensively utilized as dietary supplements to encourage disease prevention and to support the treatment of various health disorders. Unfortunately, several plants are known for mycotoxin contamination, which may overwhelm any beneficial effects the plants might have.</p> Objective <p>The purpose of the study was to determine the presence of ochratoxin A (OTA) and citrinin (CIT) in medicinal herbal products (MHP).</p> Methods <p>Sixty samples of different MHP types were purchased on the Czech market during 2020–2021. Both mycotoxins were determined using high-performance liquid chromatography with a fluorescence detector with immunoaffinity columns employed as a pretreatment.</p> Results <p>In total, 40% and 27% of samples were above the limit of quantification with the concentrations ranging up to 826.62 ng/g and 472.79 ng/g for OTA and CIT, respectively. The co-occurrence was confirmed in six MHP types.</p> Conclusions <p>MHP could be a significant source of OTA and CIT. To protect the health of MHP users, it is desirable to continue monitoring the presence of mycotoxins in MHP. During this study, new OTA regulations for herbs came into force in the EU.</p>

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Investigation of Ochratoxin A and Citrinin Occurrence in Medicinal Herbal Products from the Czech Market

  • 期刊论文

  • 发表日期：

    2025年6月12日

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  • Jakub Toman,
  • Darina Pickova,
  • Karolina Brandova,
  • Vladimir Ostry,
  • Frantisek Malir

摘要

Introduction

Medicinal plants are extensively utilized as dietary supplements to encourage disease prevention and to support the treatment of various health disorders. Unfortunately, several plants are known for mycotoxin contamination, which may overwhelm any beneficial effects the plants might have.

Objective

The purpose of the study was to determine the presence of ochratoxin A (OTA) and citrinin (CIT) in medicinal herbal products (MHP).

Methods

Sixty samples of different MHP types were purchased on the Czech market during 2020–2021. Both mycotoxins were determined using high-performance liquid chromatography with a fluorescence detector with immunoaffinity columns employed as a pretreatment.

Results

In total, 40% and 27% of samples were above the limit of quantification with the concentrations ranging up to 826.62 ng/g and 472.79 ng/g for OTA and CIT, respectively. The co-occurrence was confirmed in six MHP types.

Conclusions

MHP could be a significant source of OTA and CIT. To protect the health of MHP users, it is desirable to continue monitoring the presence of mycotoxins in MHP. During this study, new OTA regulations for herbs came into force in the EU.