Process for producing a proanthocyanidin extract

Details Process for producing a proanthocyanidin extract Process for producing a proanthocyanidin extract

C - Chemistry, Metallurgy

07

D

C07D 311/62 (2006.01) B01D 61/02 (2006.01) B01D 61/14 (2006.01) A61K 31/353 (2006.01) A61K 36/45 (2006.01)

Patent

CA 2692688

A method for producing a proanthocyanidin extract is described. The method comprises: (a) providing a volume of proanthocyanin-containing liquid feedstock; (b) passing the proanthocyanin-containing liquid feedstock to an ultrafiltration feed tank; (c) filtering the material in the ultrafiltration feed tank through an ultrafiltration membrane system to fractionate the material into a proanthocyanin-reduced permeate stream and a proanthocyanin-enriched retentate stream; (d) collecting the proanthocyanin-reduced permeate stream; and (e) passing the proanthocyanin-enriched retentate stream to the ultrafiltration feed tank until the volume of proanthocyanin-containing liquid feedstock is exhausted and thereafter collecting the proanthocyanin-enriched retentate stream.

L'invention concerne un procédé pour produire un extrait de proanthocyanidine. Le procédé comporte: (a) la fourniture d'un volume de charge liquide contenant de la proanthocyanine ; (b) le passage de la charge liquide contenant de la proanthocyanine dans un réservoir d'apport d'ultrafiltration ; (c) la filtration du matériau dans le réservoir d'apport d'ultrafiltration à travers un système de membrane d'ultrafiltration pour fractionner le matériau en un flux de perméat réduit en proanthocyanine et un flux de rétentat enrichi en proanthocyanine ; (d) la récupération du flux de perméat réduit en proanthocyanine ; et (e) le passage du flux de rétentat enrichi en proanthocyanine dans le réservoir d'apport d'ultrafiltration jusqu'à ce que le volume de la charge liquide contenant de la proanthocyanine soit évacué et ensuite la récupération du flux de rétentat enrichi en proanthocyanine.

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