Lactobacillus and Pediococcus
strains were grown at 30 C in MRS broth (Pronadisa,
Madrid, Spain) and MRS-Agar (Pronadisa) while Oenococcus strains
were grown at 30 C in MRS broth supplemented with 5 g/L fructose
(Panreac, Barcelona, Spain) and 1 g/L malic acid (Panreac) (final pH
4.8) and MRS-Agar supplemented with 0.5 g/L cysteine