Figure 1.

Effects of vegetables and fruits on the rhodamine-123 accumulation by Caco-2 cells. The accumulation of rhodamine-123 was measured after incubating the Caco-2 cells at 37°C for 2 h with or without a 40% methanol extract of vegetables and fruits (2 mg ml⁻¹). Each data value is expressed as a percentage of the control, and is presented as the mean±s.d. (n=4), ^*P<0.001 vs control.