4. Conclusions
During present investigation combined effects of sonication and PEF were studied on some quality parameters of grapefruit juice.
It was observed that changes occur in acidity, Brix, pH, EC and color values after treatment were not much significant.
However, noteworthy increase in cloud value and NEB were observed in all samples after combined treatment of sonication and PEF.
We suggest that combined treatment of sonication and PEF could be a better technique to enhance viscosity, cloud value and enzymatic browning of fruit juice on commercial basis.