Fig. 1

Median MICs of plant extracts against reference organisms. Blue, orange and grey bars represent the median MIC (mg/mL) for all replicates of tested plant species against Salmonella ser. Typhimurium, E. faecalis and E. coli, respectively. Error bars denote the range of MICs among replicates (n = 5 per plant species for each test organism, except for G. ovata where n = 6). Black arrows represent a range where ≥1 test replicate(s) of that species displayed MICs exceeding the upper testing limit (> 64 mg/mL), i.e. G. pulchella and P. myoporoides against E. faecalis