Crossflow microfiltration of gum arabic solutions : comparison of the classical system with the co-current permeate flow system

Decloux Martine, Dornier Manuel, Gratius I.. 1996. Crossflow microfiltration of gum arabic solutions : comparison of the classical system with the co-current permeate flow system. International Journal of Food Science and Technology, 31 : 153-166.

Autre titre : Microfiltration tangentielle de solutions de gomme arabique : comparaison du système classique et du flux co-courant de perméat

Résumé : Gum arabic is a natural gum exuded mainly by the trees #Acacia senegal#, currently used in the food industries for its emulsifying, thickening and stabilizing properties. Its present processing includes various operations providing a quite turbid product. Crossflow microfiltration could be interesting for the clarification and the cold-pasteurization of the gum arabic solutions. Several experiments were therefore made with the crossflow microfiltration unit at ENSIA, using two different systems: the classical one (without permeate circulation), and the co-current permeate flow system (CCPF) allowing the exploration of the low transmembrane pressures range. With gum arabic solutions of 0.17 g solide g-1 solution and 70°C, the best results after 60 min of filtration (105.7 L h-1 m-2, 4.4% of solide retention and 83.4% of clarification) were obtained with the CCPF system at low transmembrane pressure and high crossflow velocity (0.3 bar and 7.5 ms-1).

Mots-clés Agrovoc : microfiltration, gomme arabique, Acacia senegal, clarification, filtration, membrane

Classification Agris : Q02 - Traitement et conservation des produits alimentaires

Auteurs et affiliations

• Decloux Martine
• Dornier Manuel, CIRAD-FLHOR-TMQ (FRA)
• Gratius I.

Source : Cirad - Agritrop (https://agritrop.cirad.fr/389930/)

Métriques

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