Figs. 3 and 4 show the microstructures of tomato juice by optical
(OM) and scanning electron (SEM) microscopy, respectively. Firstly,
the non-homogenized (NH) sample and that homogenized at 0 MPa
showed similar structures. Furthermore, there was a clear difference
between the control samples (NH and 0 MPa) and the homogenized
samples (25, 50, 75 and 100 MPa).