title: Biogenic amine production by Oenococcus oeni.
abstract: The biogenic amine-producing capability of several Oenococcus oeni strains, originally isolated from different Italian wines, was determined. The amine-producing capability was quali-quantitatively variable among the strains: out of the 44 strains investigated under optimal growth conditions, more than 60% were able to produce histamine, at concentrations ranging from 1.0 to 33 mg/L, and about 16% showed the additional capability to form both putrescine and cadaverine, to different extents and variable relative proportions. The amine-producing behavior of the strains was confirmed under stress culture conditions, while performing malolactic fermentation. In wine, one randomly chosen strain was very effective in forming putrescine from ornithine. The formation of putrescine from arginine by some strains has been also demonstrated. Consequently, O. oeni can really and significantly contribute to the overall biogenic amine content of wines. Practical consequences of these findings are discussed.
authors.affiliation: Dipartimento di Biotecnologie Agrarie, Università degli Studi di Firenze, Piazzale delle Cascine, 24-50144 Firenze, Italy.
authors.forename: Simona
authors.initials: S
authors.lastname: Guerrini
authors.forename: Silvia
authors.initials: S
authors.lastname: Mangani
authors.forename: Lisa
authors.initials: L
authors.lastname: Granchi
authors.forename: Massimo
authors.initials: M
authors.lastname: Vincenzini
mesh_terms: D000641:Ammonia / Q000378:metabolism; D001120:Arginine / Q000378:metabolism; D001679:Biogenic Amines / Q000096:biosynthesis*; D002103:Cadaverine / Q000096:biosynthesis; D006095:Gram-Positive Cocci / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism*; D006632:Histamine / Q000096:biosynthesis; D007934:Leuconostoc / Q000254:growth & development / Q000302:isolation & purification / Q000378:metabolism; D011700:Putrescine / Q000096:biosynthesis; D013095:Spermidine / Q000096:biosynthesis; D014920:Wine / Q000382:microbiology*
chemical_list: D001679:Biogenic Amines; D000641:Ammonia; D006632:Histamine; D001120:Arginine; D002103:Cadaverine; D013095:Spermidine; D011700:Putrescine