Advances in LC-MS/MS Methods for Allergen Testing, Meat Speciation, and Gelatin Speciation

Area of Science:

• Food science
• Analytical chemistry
• Mass spectrometry

Background:

• Consumer demand for food authenticity is high.
• Ensuring food products match label claims is essential.
• Trust in manufacturers relies on genuine product information.

Purpose of the Study:

• To detail advancements in LC-tandem MS for food analysis.
• To detect allergens, meat, and gelatin speciation in various food types.
• To improve accuracy in raw and processed food identification.

Main Methods:

• Proteome analysis using high-resolution tandem mass spectrometry.
• Screening for unique tryptic peptides as specific markers.
• Quantitative analysis via multiple reaction monitoring on a tandem quadrupole mass spectrometer.

Main Results:

• Allergen detection achieved at a minimum of 10 ppm for 12 peptides.
• Gluten detection demonstrated down to 5 ppm without food matrix interference.
• Meat speciation successfully identified signature peptides at 1% w/w.

Conclusions:

• Optimized single-injection workflows enhance analyte coverage.
• Methods effectively identify multiple species in complex food matrices.
• Advanced mass spectrometry ensures reliable food authenticity testing.