Figure 3 Effect of pulsed electric fields on the inhibition of Saccharomyces
cerevisiae during 21 days of storage at 25°C of prickly pear beverage
formulated with acids and preservatives and made with Villanueva (a)
and Rojo Vigor (b) varieties. Control ( ), 11 ls-25 Hz-27 kV cm
1
( ), 11ls-50 Hz-27 kV cm
1 ( ), 13ls-25 Hz-32 kV cm
1 ( ),
13ls-50 Hz-36 kV cm
1 ( ), 15ls-25 Hz-32 kV cm
1 ( ), 15ls-
50 Hz-36 kV cm
1 ( ). For each product, time points with different
letters are significantly different (P < 005).