Detection Methods for Aflatoxin M1 in Dairy Products.

Area of Science:

• Food Science
• Analytical Chemistry
• Toxicology

Background:

• Mycotoxins, toxic fungal metabolites, can contaminate the food chain.
• Aflatoxin M1 (AFM1) in dairy products arises from aflatoxin B1 (AFB1) in animal feed.
• AFM1, though less toxic than AFB1, has hepatotoxic and carcinogenic effects and is heat-stable.

Purpose of the Study:

• To highlight the importance of detecting and quantifying AFM1 in dairy products.
• To review current methodologies for AFM1 analysis in milk-based foods.
• To discuss advancements in extraction, clean-up, and quantification techniques.

Main Methods:

• Extraction: Traditional organic solvents, QuEChERS, and proteolytic enzymes.
• Clean-up: Immunoaffinity columns and competitive alternative techniques.
• Quantification: Enzyme-linked immunosorbent assay (ELISA) for screening, HPLC and mass spectrometry for confirmation.

Main Results:

• AFM1 contamination is a significant concern in milk-based products like cheese and yogurt.
• Various analytical methods exist, with ongoing development for efficiency and cost-effectiveness.
• QuEChERS and enzymatic methods offer promising alternatives for extraction.
• High-performance liquid chromatography and mass spectrometry provide accurate quantification.

Conclusions:

• Accurate detection and quantification of AFM1 in dairy products are essential for public health.
• Methodological advancements are improving the analysis of AFM1 in milk.
• Continued research into cost-effective and sensitive detection techniques is vital for regulatory compliance and consumer safety.