Titratable acidity (TA, mEq H3O+/100 g) obtained by titration of the pulp with NaOH 0, 1 M (AOAC. Official methods of analysis of the association of official analytical chemists. (18th ed.). Maryland., 2005); the pH was determined with the aid of potentiometer;soluble solids (SS, %) the pulp was filtered on a filter paper and was measured on a digital refractometer Atago