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Double antibody sandwich enzyme linked immunoassay and rapid Immunoswab assay for detection of gliadin in food

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Celiac (gluten intolerant) sprue is a life-long threatening disease. The only effective treatment thus far is to maintain a gluten-free diet. Sensitive and reliable double antibody sandwich enzyme-linked immunosorbent assay (ELISA) and Immunoswab assay were developed by using chicken egg yolk anti-gliadin immunoglobulin Y as capturing antibody and monoclonal anti-gliadin IgG (HYB-314) antibody as detecting antibody for the detection of gliadin. The detection limits of the double antibody sandwich ELISA and Immunoswab assay were 5 ng/ml in phosphate buffered saline and 1.25 µg/ml in 60% ethanol, respectively. The Immunoswab was a more convenient and rapid detection system, but was less sensitive as compared to the double antibody sandwich ELISA developed.
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Keywords: Immunoswab assay; celiac disease; egg yolk; gliadin; monoclonal antibody; sandwich ELISA

Document Type: Research Article

Affiliations: 1: Faculty of Pharmacy and Pharmaceutical Sciences,University of Alberta, 114 St-89 AveEdmonton,AB T6G 2N8, Canada 2: Alberta Agriculture and Rural Development, Room 200, 7000 113th StreetEdmonton,AB T6H 5T6, Canada

Publication date: June 1, 2012

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