FIG 5 .

PYY release from colon cells exposed to effluent from in vitro microbial cultures with respect to the source community (gelada versus human) and the diet (control versus grass versus potato). To control for variation in the number of L cells per well, PYY release is expressed as follows: [(the amount of PYY measured in the supernatant)/(the amount of PYY measured in the supernatant plus lysed cells)] × 100. Results for samples from 0 and 10 h were pooled for each treatment, as time had no significant effect.