In
brief, the mixtures consisting of solvent alone
(DMSO) or 1-5 mg/plate of extract in the
presence of AFB1 (0.1 μg/plate) or AF-2
(0.01 μg/plate) were preincubated with
overnight culture of TA100 strain with or
without S9 mix at 37 °C for 20 min before 2
ml of top agar addition.