showed that, during dehydration, six PME
genes were strongly induced in Corvina berries and, to a lesser
extent, in Sangiovese and Oseleta berries. Regarding the cell wall,
it has been observed in tomatoes that short-term treatment
(10 min) with high concentration (10 ppm) of ozone did not alter
the activity of the pectin-degrading enzymes polygalacturonase
and b-Galactosidase (b-Gal), though it did decrease pectin methyl
esterase activity