To determine the concentration of viable microorganisms dilutions 1:10 of film-forming dispersions in tryptone (1 g L−1) were vortexed during 3 min with glass beads. Then, serial dilutions (1:10) in tryptone were performed and plated on MRS agar, for lactic acid bacteria, and on YGC agar, for yeasts. Plates were incubated for 48 h at 30°°C before colonies were counted.