Practical experiences with an extended screening strategy for genetically modified organisms (GMOs) in real-life...

Area of Science:

• Agricultural Science
• Food Safety
• Biotechnology

Background:

• European Union (EU) regulations mandate labeling for animal feed containing authorized genetically modified organisms (GMOs).
• The increasing number and diversity of GMOs necessitate more complex and costly analytical methods for compliance and detection of unauthorized GMOs.
• Current analytical approaches for GMO detection in animal feed are becoming laborious and expensive.

Purpose of the Study:

• To evaluate a detailed 24-element screening strategy for its efficiency in reducing subsequent GMO identification analyses.
• To assess the capability of the screening strategy in detecting EU-unauthorized GMOs in animal feed.
• To validate the robustness and reliability of the proposed screening approach through an interlaboratory study.

Main Methods:

• Application of a detailed 24-element screening strategy to 50 animal feed samples.
• Subsequent identification analyses were performed based on screening results.
• An interlaboratory study involving two laboratories was conducted on eight selected samples.

Main Results:

• The detailed screening strategy significantly reduced the number of required GMO identification analyses.
• The screening approach was effective in identifying both authorized and potentially unauthorized GMOs.
• The interlaboratory study demonstrated no significant differences in results between the two participating laboratories, confirming the approach's robustness.

Conclusions:

• A detailed 24-element screening strategy offers an efficient and reliable method for analyzing GMOs in animal feed.
• This strategy aids in enforcing EU labeling requirements and detecting unauthorized GMOs, thereby reducing analytical costs and complexity.
• The validated approach provides a robust tool for regulatory compliance and quality control in the animal feed industry.