“P26 | Evaluation of the in vitro and in situ anti-Listeria activity of an ethanolic extract of propolis from Tunisia: L. Nalbone1, S. Forgia1, G. Ziino1|2, N. Nefzi3, A. Giuffrida1|2, W. Megdiche-Ksouri3, F. Giarratana1|2 | 1Dipartimento di Scienze Veterinarie, Università di Messina, Polo Universitario dell’Annunziata, Messina, Italia; 2 Riconnexia srls, Department of Veterinary Science, University of Messina, Polo Universitario dell’Annunziata, Messina, Italy; 3 Laboratory of Aromatic and Medicinal Plants, Biotechnology Center of Borj-Cédria, Tunisia” (2025) Italian Journal of Food Safety, 14(s1). doi:10.4081/ijfs.2025.14409.