Vitis vinifera L. with common name of grape is native to Mediterranean region and today is grown all over the world.آHere, the adsorption/desorption process on LXA-10 resin was investigated to enrich polyphenolic compounds of grape extract. The extract was obtained using ultra-sound-assisted probe with water and ethanol (50:50) with an extraction yield of 26.4%. The pH value of the extract for maximum adsorption was optimized at 3.26. According to the findings of this study, the kinetic adsorption fitted well with pseudo-second-order model (R2=0.99). Moreover, the dynamic study revealed the adsorption capacity and required solvent for polyphenolic desorption being 42 mL and six-bed volume (BV), respectively. In the enriched powder, the amount of quercetin-O-3-glucuronide and quercetin-O-3-glucoside increased from the ranges of 19.43 to 45.92 mg.g-1 and 41.244 to 72.88 mg.g-1, respectively. The antioxidant activity of enriched polyphenols also increased from 252.37 in initial grape extract to 408.03 mM iron (II).mg-1. Manuscript profile