The present invention is related to the field of bioprotection, in particular to the strain of Lactobacillus rhamnosus CHCC5366 with accession no. DSM23035. Furthermore, the present invention concerns an antifungal composition comprising the strain, an antifungal composition comprising the strain and at least one strain of Lactobacillus paracasei, food, feed and pharmaceutical products comprising such an antifungal composition, a method of manufacturing such food, feed and pharmaceutical products, a method for reducing the content of yeasts and molds of such food, feed and pharmaceutical products and uses of the antifungal composition.