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Citric acid output of CGMCC 5751 in liquefied corn medium. a. different adding time point of 0.2 mg L-1 antimycin A. b. adding different antimycin A concentrations at the 24-h time point. The amount of 1×105 spores mL-1 of A. niger cultivated in liquefied corn medium at 350 r min-1 and 35°C for 72 h in shake flasks. Data are average values and standard deviations of triplicate experiments.
