However, for solid matrices asmeat or meat products this behavior
could not be stated because there are a few studies available in
literature. Pohlman et al. applied ultrasound frequency (20 kHz) for
30 min at 3 °C in beef samples and evaluated the microbial growth
during a storage period of 30 days at refrigeration temperature
(Pohlman et al., 1997). Compared to the control group, sonicated meat
demonstrated a lower number of bacteria at initial time only. In our
study, the results showed that bacteria growthwas avoided by US treatment
at 74 °C and 10.53 min after 40 days of storage