A novel mechanism for the promotion of quercetin glycoside absorption by megalo α-1,6-glucosaccharide in the rat small intestine

► α-1,6-Glucosaccharides promote quercetin glycoside absorption in the small intestine. ► The saccharides enhance water-solubility of quercetin glycoside in the intestine. ► The effects of megalo-size saccharide are higher than those of oligo-size saccharide.