Finally, a 90-lL aliquot of this suspension was used in each well of a 96-well plate acrylic (ELISA), resulting in a concentration of 510 4 CFU/mL on a well acrylic plate. The concentration was confirmed by viability counts on the LB plates.
The microtiter plates were subsequently incubated at 30C for 24 h, 48 h and 72 h. Finally, the absorbance at 530 nm was measured in a plate reader (Epoch, Bio-Tek, Winooski, VT, USA). The threshold for the MIC wasset at a minimum of an 80% growth inhibition. All of the tests were performed in triplicate in 100lL of reaction volume