Concentration of Pomegranate Juice Using Osmotic Distillation Process with Polyvinylidene Fluoride Membrane

The concentration of fruit juices is industrially performed in order to reduce the storage, packaging and handling costs. In this work, the osmotic distillation (OD) process using hydrophobic polyvinylidene fluoride (PVDF) membrane was employed to concentrate the pomegranate juice at ambient temperature under atmospheric pressure. For this purpose, a concentrate calcium chloride salt solution was used as the osmotic stripping solution. The performance of the OD process in terms of flux and concentration degree was evaluated. The pomegranate juice was successfully concentrated by the proposed technique to obtain a product with concentration of 38°Brix. The average transmembrane flux of 4.32 kg/m2.h was observed.-

کلیدواژه ها:

Osmotic distillation (OD) ، Concentration ، Pomegranate juice ، Polyvinylidene fluoride (PVDF) membrane