The minimum inhibitory concentration (MIC) values of prodigiosin on the tested bacteria after 48 hours prodigiosin treatment.

The minimum concentration of prodigiosin required to inhibit visible microbial growth was determined by observing the turbidity of the culture in the wells. Non-turbid (clear) cultures were interpreted as positive bacterial growth inhibition when compared to the corresponding inhibition following chloramphenicol treatment (n = 3).

通过观察各培养孔内培养液的浊度，确定了抑制肉眼可见微生物生长所需的最低灵菌红素（prodigiosin）浓度。以经氯霉素（chloramphenicol）处理后的对应抑制效果为参照，无浊度（澄清透明）的培养液被判定为细菌生长抑制阳性结果，实验重复次数n=3。