In vitro absorption. Considering that antioxidants absorption
takes place mainly at the intestinal digestion stage, the resulting
mixture (fluids obtained after in vitro digestion) was transferred to
the dialysis sacks (D9777-100FT, Sidma-Aldrich, Poznan, Poland),
placed in an Erlenmeyer flask containing 50 mL of PBS buffer and
incubated in a rotary shaker (2 times per 2 h, 37
C). The PBS buffer
together with the compounds that passed through the membrane
(dialysate, AE) was treated as an equivalent of the raw material
absorbed in the intestine after digestion.