Abstract
Norovirus (NoV) is a major cause of acute non-bacterial gastroenteritis in all age groups worldwide. To detect NoV from foods, polyethylene glycol (PEG) precipitation or ultracentrifugation methods are generally used with reverse transcription (RT)-PCR. These methods need to use complicated procedures and varied buffers depending on the kinds of food matrices. In this study, we suggested a universal method to recover NoV in food and water samples as a prior step to real-time RT-PCR. As a NoV surrogate model, feline calicivirus (FCV) was used. FCV was artificially inoculated to samples, and then concentrated by the adsorption-elution method using negatively charged membrane filters. The detection limit was 4.3×101 PFU/250 mL for distilled water, 4.3×102 PFU/250 mL for environmental waters, and 4.3×102 PFU/15 g for lettuce and oyster. We were able to identify the possibility of one universal and time-saving method to detect NoV in food and water samples without modifications.
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Cho, MG., Jeong, HM., Ahn, JB. et al. Detection of feline calicivirus as norovirus surrogate in food and water sources using filtration and real-time RT-PCR. Food Sci Biotechnol 20, 1475–1480 (2011). https://doi.org/10.1007/s10068-011-0204-5
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DOI: https://doi.org/10.1007/s10068-011-0204-5