Media for the various microorganisms included: standard methods agar (plate count agar [PCA]) for total aerobes; MRS broth (Difco Laboratories)+1.5 g/100 g agar+0.02 g/100 g sodium azide (MMRS) and under incubation 2–3 days at 30 °C for LAB; standard methods agar (BBL)+0.1 g/L of chlortetracycline HCl+0.1 g/L of chloramphenicol under incubation 5–7 days at 25 °C for molds and yeasts