Antioxidant capacity of HIPEF-treated orange juice
and gazpacho were 36.1–41.2% and 42.1–47.4% inhibition
of DPPH, respectively, with non-significant differences
between HIPEF-treated and untreated products (p < 0.05)
(Tables 2–4). The only study about the effect of HIPEF
treatment on the antioxidant capacity of food was that
reported by Sa´nchez-Moreno et al. (2005) who treated
orange juice with 35 kV/cm for 750 ls at 800 Hz with
4 ls bipolar pulses at less than 50 C, and they did not
observe any effect of this treatment on the radical-scavenging
capacity of orange juice.