This might be attributed to the increased
extractability of phenolic compounds due to the
disruption of plant cell walls during high heat
treatment, which might cause phenolic compounds
to be released more easily than in raw materials
and with lower heat treatment. These results were
consistent with those of Scalzo et al. (2004), who
reported that thermal treatment generally induced
an increase in the main phenolic substances of
orange juice, such as anthocyanins and total
cinnamates,