Governments all over the world have implemented regulatory frameworks concerning food allergen
labelling and established or discussed the implementation of thresholds. Therefore, quantitative methods
are needed for their surveillance. DNA-based approaches using a matrix-adapted calibration, an internal
standard material and a modified standard addition have been developed. In order to enable a comparative
assessment of the available quantification methods, experimental framework conditions and uniform
performance criteria were defined. For the evaluation of the experimental results using
homogenous sample material, the recovery, repeatability and reproducibility were considered along with
the limit of detection and the limit of quantification. In addition, muffin dough and muffins spiked with
sesame were analysed to assess the suitability of the methods to quantify sesame in model foods. The
modified standard addition emerged from the comparative assessment and the analysis of the model
foods to be the most appropriate method to quantify traces of allergens in food.
Governments all over the world have implemented regulatory frameworks concerning food allergen
labelling and established or discussed the implementation of thresholds. Therefore, quantitative methods
are needed for their surveillance. DNA-based approaches using a matrix-adapted calibration, an internal
standard material and a modified standard addition have been developed. In order to enable a comparative
assessment of the available quantification methods, experimental framework conditions and uniform
performance criteria were defined. For the evaluation of the experimental results using
homogenous sample material, the recovery, repeatability and reproducibility were considered along with
the limit of detection and the limit of quantification. In addition, muffin dough and muffins spiked with
sesame were analysed to assess the suitability of the methods to quantify sesame in model foods. The
modified standard addition emerged from the comparative assessment and the analysis of the model
foods to be the most appropriate method to quantify traces of allergens in food.
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