Alternative extraction methods for Zearalenone: Microwave Assisted Extraction and Accelerated Solvent Extraction

Area of Science:

• Food Chemistry
• Analytical Chemistry
• Mycotoxicology

Background:

• Zearalenone (ZON) is a common mycotoxin found in cereals.
• Efficient extraction methods are crucial for accurate ZON detection in food safety.
• Optimizing extraction parameters is key to improving analytical performance.

Purpose of the Study:

• To evaluate Microwave Assisted Extraction (MAE) and Accelerated Solvent Extraction (ASE) for ZON isolation from wheat and corn.
• To optimize extraction parameters including temperature, time, and solvent mixture using a factorial design.
• To assess the efficiency and reliability of these methods for ZON determination via LC-MS.

Main Methods:

• Extraction of Zearalenone (ZON) from fortified wheat and corn using MAE and ASE.
• Application of a factorial design to optimize temperature, time, and solvent composition.
• Direct ZON determination by Liquid Chromatography-Mass Spectrometry (LC-MS) without sample clean-up.

Main Results:

• Optimized MAE and ASE conditions were established using factorial design.
• Both extraction methods yielded satisfactory ZON recovery.
• Results obtained were comparable to commonly used extraction techniques, validated on proficiency test samples.

Conclusions:

• MAE and ASE are effective and efficient methods for extracting ZON from cereal matrices.
• The developed extraction protocols provide reliable results for mycotoxin analysis.
• These methods simplify the analytical workflow by eliminating the need for a clean-up step.