Nevertheless, cited studies (Philippon 1984;Williams et al.
1986) demonstrate that this enzyme is not generally responsible
for the main degradation reactions, but other more sensible
enzymes, e.g., lipoxygenase. Therefore, blanching until total
peroxidise inactivation generally implies over-processing with
consequent unnecessary quality losses. The spherical shape of
vegetables often makes blanching difficult since, to reach the
effective temperature at the centre and to ensure enzymatic
inactivation, the most external part of the vegetable must be
processed for long periods at high temperatures. This produces
unavoidably a “cooking” process that affects mainly
the physical and chemical characteristics of vegetable (Zhang
and Hamauzu 2004).