Combination of microfiltration and osmotic evaporation to prepare high quality passionfruit juice concentrates

Mathilde Courel (1, 2) , Manuel Dornier (2, 3) , Gilbert Marcel Rios (4) , Max Reynes (2)

1 UM2 - Université Montpellier 2 - Sciences et Techniques
2 Cirad-FLHOR PRH - Programme Productions Horticoles
3 Institut Agro - Montpellier SupAgro
4 IEM - Institut Européen des membranes

Osmotic evaporation (OE) is a membrane technique allowing concentration of aqueous solutions at ambient temperature and pressure. The water is extracted in gas phase by circulating the dilute solution on one side of a hydrophobic porous polymer and a hypertonic salt solution on the other side (Fig. 1). In this work, crossflow microfiltration (MF) and OE are combined to concentrate passionfruit juice and compared to conventional vacuum distillation (VD) on the basis of physical-chemical characteristics as well as flavour loss in the reconstituted juice.

Mots clés: Osmotic distillation; hydrophobic membrane; salt solution; fruit juice; low temperature concentration

Domaines: Sciences de l'ingénieur [physics]; Physique [physics]

Mathilde Courel, Manuel Dornier, Gilbert Marcel Rios, Max Reynes. Combination of microfiltration and osmotic evaporation to prepare high quality passionfruit juice concentrates. 8th International Congress on Engineering and Food (ICEF-8), Apr 2000, Puebla, Mexico. CRC Press, 2002. ⟨mnhn-03922975⟩