Fig. 2From: Comparative metabolomics analysis of amphotericin B high-yield mechanism for metabolic engineeringPCA analysis of intracellular metabolites at different fermentation time points. The Principal Component Analysis model with R2x [1] of 0.333, R2x [2] of 0.164 based on the metabolic analysis and AmB production. In order to assess the accuracy and stability of the equipment state during detection and collection process, the QC samples were prepared in advance and tested every 10 samplesBack to article page