Figure 2.

a) Luteolin concentration in distal colon supernatants over 300 min on three consecutive days of oregano feeding, n = 3 donors. b) Rate of luteolin breakdown as percentage of starting concentration on three consecutive days of oregano feeding, n = 3 donors. c–e) AhR activation in the distal colon on each day of consecutive oregano feeding, measured with the CALUX reporter assay using luciferase production as readout. Results are expressed as percent of the positive control (β‐naphthoflavone, 5 µm), n = 3 donors. Data are expressed as mean of three donors ± SEM, with *p < 0.05, **p < 0.01, and ***p < 0.001.