[Isolation of ochratoxin A in fodder barley]

Area of Science:

• Mycology
• Food Safety
• Animal Toxicology

Context:

• Ochratoxin A (OA) is a potent mycotoxin produced by several Aspergillus and Penicillium species.
• Fodder barley is a common feedstuff for livestock globally.
• Previous research has indicated the presence of OA in various agricultural commodities.

Purpose:

• To identify and quantify Ochratoxin A in Czechoslovak fodder barley.
• To isolate and characterize the fungal species responsible for OA production.
• To investigate the influence of cultivation conditions on OA biosynthesis.

Summary:

• Ochratoxin A was detected in a sample of fodder barley from Czechoslovakia.
• The fungus Penicillium verrucosum var. verrucosum, a known OA producer, was isolated from the barley.
• OA production by the isolated fungus was studied under different substrate and temperature conditions.

Impact:

• This study highlights the potential risk of ochratoxicoses in farm animals in Czechoslovakia.
• Findings suggest the need for monitoring OA levels in animal feed within the region.
• The research provides a basis for further investigation into mycotoxin contamination in agricultural products.