Ultrafiltration and osmotic evaporation applied to the concentration of cholupa (Passiflora maliformis) juice

Abstract

Cholupa it’s an exotic fruit that has excellent organoleptic characteristics but highly sensitive to thermal treatments. Fruit was harvested in commercial fields and for each process stage, the following physicochemical parameters were analyzed: soluble solids, pH, total solids, viscosity, and turbidity. Was used a Pellicon2® ultrafiltration system (10 kDa) with flat membranes and filtration area 0.5 m2, osmotic evaporator had a polypropylene hydrophobic hollow fiber module MD020CP2N® with area 0.104 m2. Prior to ultrafiltration, in order to obtain a higher permeate flow, juice was subjected to enzymatic treatment with commercial mixtures, found that doses of Maxoliva® (50 μl/100g) and Rapidase® (40 μl/100g) are best treatment, which had a significant effect (P

Keywords

• Membranes
• Evaporation
• Ultrafiltration
• Juice
• Diffusion.