As in winter
juice, a pH drop of juicewas observed in the first hours of fermentation,
so pH was not adjusted. In a first series of experiments the juice was
heated at 70 °C for 15 min prior to the heat treatment (at 60 °C for
2 h). Four different concentrations of inulinase, ranging between 0.25
and 1.75 mL L−1, were evaluated.