The LDA analysis, in this case, allows the aroma of
the fresh and processed samples, which take up separate zone
of the plot, to be discriminated. Moreover, the set of data corresponding
to the different pressure levels show the same value on
the first main axis, while differ on the value of the second main
axis. The data related to the samples processed at 400 MPa and
500 MPa are partially overlapped, thus demonstrating that the aroma
of the samples are similar