As a result of the effectiveness of the pH reduction and
adding preservatives in the inactivation of E. coli inoculated
in the beverages (Fig. 1b), it was decided to evaluate
the combined effect of PEF, pH reduction and preservatives
only on the inhibition of S. cerevisiae. Figure 2
shows the effect of treatments on the microbial survival
immediately after processing, and Fig. 3a,b show results
during the storage at 25°C/21 days.