Fig. 1

(-)-Terpinen-4-ol inhibits EtBr efflux in MDR K. pneumoniae and E. coli. Deenergized cells of (a) K. pneumoniae MTCC 432, (b) K. pneumoniae BC1415 and (c) E. coli UTI89 were treated with Ltr- Lactobacillus derived (-)-Terpinen-4-ol and Tr- Commercially procured (-)-Terpinen-4-ol for 1 h. Phenyl arginine beta naphthylamide (PABN) and Carbonyl cyanide m-chlorophenyl hydrazine (CCCP) were maintained as positive controls. The results presented correspond to the mean of three independent readings ± SD (n = 3).