Figure 7. The length of a protocatechuate's carbon chain and the rate of oxidation of rifampicin.

(a) The reaction mixture consisted of 100 µM rifampicin, 0.01 µM HRP, and 50 µM H₂O₂ in the absence (control) or presence (2 µM) of the tested compounds. (b) Reaction rate. Data represent the mean and SD of three experiments. *p<0.05 relative to the control.