Raw depectinized apple juice was clarified in a laboratory scale ultrafiltration (UF) system using ceramic tubular membranes (Tech-Sep Carbosep) with a molecular weight cut-off of 300,000, 50,000, and 30,000 daltons. The experiments have been carried out over a wide range of transmembrane pressures (100-400 kPa), temperatures (293-328 K), and feed flow rates (100-900 mL/min). Permeate flux significantly decreased with time until a steady state was established.

Within this research, the effects of daily utilization of adequate quantity of re-hydration drink-apple and celery cocktail-on the endurance of welltrained athletes are determined. This drink contains up to 10% of carbohydrates (8.83%). The level of Ca is 130.52 mg/l, K-425.17 mg/l; Mg-25.15 mg/l; Na-48.16 mg/l and P-69.44 mg/l.