A bioinformatics approach to developing antibodies to specific proteins has been evaluated for the production of antibodies to heat-processed specified risk tissues from ruminants (brain and eye tissue). The approach involved the identification of proteins specific to ruminant tissues by interrogation of the annotation fields within the Swissprot database. These protein sequences were then interrogated for peptide sequences that were unique to the protein.
View Article and Find Full Text PDFWe report the development of a qualitative method to detect the addition of blood-based binding agents to food products. The method is based on the detection of species-specific marker peptides, fibrinopeptides, released from the blood protein fibrinogen during gelling of the blood protein by thrombin. The fibrinopeptides were isolated from foods spiked with commercial bovine binding agent by acid precipitation followed by enrichment using solid-phase extraction and analysed by liquid chromatography electrospray ionisation triple quadrupole mass spectrometry.
View Article and Find Full Text PDFPeople suffering from food allergies are dependent on accurate food labeling, as an avoidance diet is the only effective countermeasure. Even a small amount of allergenic protein can trigger severe reactions in highly sensitized patients. Therefore, sensitive and reliable tests are needed to detect potential cross-contamination.
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