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Direct competitive enzyme‐linked immunosorbent assay (ELISA) for rapid screening of anisakid larvae in seafood

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BACKGROUND: Anisakid larvae are one of the most important pathogenic parasites in marine products; however, simple and rapid analytical techniques for them are still very limited. In this research, based on specific rabbit polyclonal antibodies which were raised against crude extracts of Anisakis larvae, purified by protein A affinity chromatography and labeled with horseradish peroxidase, a direct competitive enzyme‐linked immunosorbent assay (ELISA) was developed and validated for detection of anisakid larvae in seafood.

RESULTS: The established method exhibited a broad selectivity to Anisakis larvae and Pseudoterranova larvae, and the lowest detection limit to them was estimated to be about 5 parasites kg−1 in food matrix. Using Pseudopleuronectes yokohamae, Scomberomorus niphonius and Ommastrephes bartrami as samples and within spiking concentrations from 20 to 100 larvae kg−1, the determination recovery for Anisakis larvae and Pseudoterranova larvae ranged from 77.8% to 107.0%, with relative standard deviations all less than 20%.

CONCLUSION: The results allowed us to suggest the established direct competitive ELISA as an effective analytical tool for fast screening of anisakid larvae in sea foods. Copyright © 2010 Society of Chemical Industry
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Keywords: anisakid larvae; direct competitive ELISA; rapid detection; seafood

Document Type: Research Article

Publication date: April 15, 2010

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