FN Archimer Export Format PT J TI Retention of the Tulane virus, a norovirus surrogate, by ultrafiltration in seawater and production systems BT AF Taligrot, H. Monnot, M. Ollivier, Joanna Cordier, C. Jacquet, N. Vallade, Emilie Garry, Pascal STAVRAKAKIS, Christophe LE GUYADER, Soizick Moulin, P. AS 1:1;2:1;3:2;4:1;5:1;6:2;7:2;8:3;9:2;10:1; FF 1:;2:;3:PDG-RBE-MASAE-LSEM;4:;5:;6:PDG-RBE-MASAE-LSEM;7:PDG-RBE-MASAE-LSEM;8:PDG-RBE-EMMA;9:PDG-RBE-MASAE-LSEM;10:; C1 Aix-Marseille Univ., Laboratoire de Mécanique, Modélisation et Procédés Propres, Équipe Procédés Membranaire (EPM-M2P2-CNRS-UMR 7340), Europôle de l'Arbois, BP 80, Bat. Laennec, Hall C, 13545, Aix-en-Provence, cedex 04, France Laboratoire Santé, Environnement et Microbiologie, Ifremer, SGMM-LSEM, Rue de l'Ile d'Yeu, BP 21105, 44311 Nantes Cedex 3, France Plateforme expérimentale Mollusques Marins de Bouin, Ifremer, SGMM-PMMB, Polder des Champs, 85230 Bouin, France C2 UNIV AIX MARSEILLE, FRANCE IFREMER, FRANCE IFREMER, FRANCE SI NANTES BOUIN SE PDG-RBE-MASAE-LSEM PDG-RBE-EMMA IN WOS Ifremer UPR copubli-france copubli-univ-france IF 4.5 TC 4 UR https://archimer.ifremer.fr/doc/00754/86560/91942.pdf LA English DT Article DE ;Norovirus;Ultrafiltration;Oyster;Concentration effect;Retention rate AB Shellfish as a foodstuff must meet sanitary quality objectives for the protection of consumers and this quality is closely linked to the water. The oyster industry considered this challenge related to contaminations and currently, the major risk of disease is due to the presence of norovirus (NoV) since all oyster-consuming countries report outbreaks of gastroenteritis linked to the presence of this microorganism. Ultrafiltration has already demonstrated to be efficient for viral protection of oyster farms in previous studies. In this work, retention by ultrafiltration of Tulane virus, a NoV surrogate, was evaluated. The effect of virus concentration in the feed on the ultrafiltration efficiency has been assessed. Low retentions of about 1 log were observed at the lowest viral concentrations. At higher concentrations, an increase of retention up to 5 log was obtained. These results highlight the potential overestimation of UF efficiency during laboratory experiments realized at high concentrations, compared to low concentrations found in environmental resources. In agreement with other studies, higher retentions at high concentrations could be explained by formation of viral aggregates, which could facilitate the steric exclusion but also modify the electrostatic and hydrophobic interactions between isolated viruses/aggregates and membrane. Virus retentions with a fresh mineral water (Evian water) and seawater were compared. Seawater achieved higher retention rates for Tulane virus due to the membrane fouling. PY 2022 PD MAY SO Aquaculture SN 0044-8486 PU Elsevier BV VL 553 UT 000811757600006 DI 10.1016/j.aquaculture.2022.738096 ID 86560 ER EF