[Biological assay for trichothecenes in grain]

Area of Science:

• Agricultural Science
• Toxicology
• Mycology

Context:

• Fusarium fungi thrive in specific climatic conditions, increasing mycotoxin production in crops.
• Mycotoxins, particularly trichothecenes, pose a significant risk to food safety and animal health.
• Grain samples from the 1980 crop in South Moravia, West Slovakia, and East Slovakia were analyzed.

Purpose:

• To evaluate the toxic potential of grain samples using rabbit skin bioassays.
• To identify the presence and levels of T-2 toxin and other trichothecene mycotoxins.
• To validate a method for screening grains for mycotoxin contamination.

Summary:

• One hundred grain samples (wheat, barley, maize, rye, oats) were tested for dermal toxicity.
• Only 5% of samples exhibited toxic effects on rabbit skin.
• Three percent of samples contained T-2 toxin; others contained different trichothecenes, indicating broader contamination.

Impact:

• The study highlights the prevalence of mycotoxin contamination in specific grain crops.
• A recommended screening method can aid in early detection and prevention of mycotoxin-related risks.
• Findings contribute to food safety protocols and agricultural risk assessment.