Development of a traceable molecular hygiene control method (TMHCM) for human DNA content in foods

Area of Science:

• Food Science
• Molecular Biology
• Forensic Science

Background:

• Assessing food hygiene is crucial for public health.
• Current methods may not accurately detect human contamination.
• A sensitive molecular technique is needed to quantify human DNA in food.

Purpose of the Study:

• To develop a molecular technique for detecting human DNA contamination in food.
• To establish a traceable molecular hygiene control method (TMHCM).
• To validate the method's sensitivity and applicability in market samples.

Main Methods:

• DNA extraction from model foods and human buccal samples using GIDAGEN Multi-fast DNA isolation kit.
• Design of a primer specific to the human mitochondrial D-Loop region.
• Quantification of human DNA contamination using real-time PCR.

Main Results:

• The developed technique achieved a sensitivity of 0.00001ng DNA/PCR.
• The traceable molecular hygiene control method (TMHCM) was successfully applied to 60 market food samples.
• The study demonstrated the method's ability to predict adherence to human-oriented hygienic conditions.

Conclusions:

• DNA-based TMHCM is a sensitive and applicable method for monitoring food hygiene.
• This molecular approach provides a reliable way to assess human DNA contamination in food products.
• The technique can be used to ensure food safety and compliance with hygiene standards.