Oxygen measurements. Amount of dissolved oxygen (DO) in ppm in the enrichment broth. DO was measured at 1 inch from bottom of the bags, throughout 48 h of incubation at 42°C. Average ± SEM of six measurements from subsamples positive for Campylobacter spp. after incubation under aerobic conditions. Measurements were taken with a dissolved oxygen sensor (Vernier) and amount of oxygen in the liquid was recorded as mg/l or ppm.
Zhou et al. BMC Microbiology 2011 11:175 doi:10.1186/1471-2180-11-175