Patent ID: 9579618
Date: 2017-02-28
CPC Classifications: A23D,A23V,A61K,B01F,C11B,Y02W

Claim:
1. A process for isolating biopolymer-rich extracts from grape pomace, which comprises said steps: (a) grape pomace is subjected to a steam blanching process, from 0 minutes to 1 hour at 70-90° C., resulting in a blanched material, (b) subjecting said blanched material to extraction by water-ethanol mixtures of an ethanol concentration of 50% to 98% w/w, at temperatures below 70° C., to obtain a dispersed solid, (c) removing the liquid from said dispersed solid as to obtain a solid residue, (d) treating said solid residue with an organic solvent at temperatures from 20° C. to 90° C. and for times from ten minutes and twenty-four hours as to obtain a defatted solid material, (e) extracting said defatted solid material by an aqueous solvent, at temperatures from 20° C. to 90° C. and for times from ten minutes to twenty-four hours, as to obtain a biopolymer-rich liquid extract.