Retention of the Tulane virus, a norovirus surrogate, by ultrafiltration in seawater and production systems

Shellfish as a foodstuff must meet sanitary quality objectives for the protection of consumers and this is closely linked to water. The oyster industry considered challenge related contaminations currently, major risk disease due presence norovirus (NoV) since all oyster-consuming countries report outbreaks gastroenteritis microorganism. Ultrafiltration has already demonstrated be efficient viral farms in previous studies. In work, retention by ultrafiltration Tulane virus, NoV surrogate, was evaluated. effect virus concentration feed on efficiency been assessed. Low retentions about 1 log were observed at lowest concentrations. At higher concentrations, an increase up 5 obtained. These results highlight potential overestimation UF during laboratory experiments realized high compared low concentrations found environmental resources. agreement with other studies, could explained formation aggregates, which facilitate steric exclusion but also modify electrostatic hydrophobic interactions between isolated viruses/aggregates membrane. Virus fresh mineral water (Evian water) seawater compared. Seawater achieved rates membrane fouling.