The application of the coating layer in combination with HHP
did not result in any statistically significant color variation with
respect to HHP treatment alone.
Similarly, no significant color difference was observed between
samples treated by PL alone or by the combination of PL and
coating layer.
Interestingly, PL treatment, alone or in combination with
coating, did not cause any significant change in color componentswith respect to control sample immediately after treatment.
However, during storage, differently from control, L*, a* and b*
values remained close to day 0 values instead of decreasing, as
observed for control green bean samples.