Fig. 4 in Biotransformation of artemisinic acid to bioactive derivatives by endophytic Penicillium oxalicum B4 from Artemisia annua L.

Fig. 4. Time course of mycelial biomass (A) and the biotransformation of artemisinic acid (AA) by Penicillium oxalicum B4. AA (3.50 mg/50 mL) was added to 2-day-old culture for the biotransformation. Data presented are the means ± SD of results from three independent experiments.