Fig. 3From: FTIR spectroscopy as a unified method for simultaneous analysis of intra- and extracellular metabolites in high-throughput screening of microbial bioprocesses a PCA score plot of ATR FTIR spectral data set of cultivation medium of P. glabrum (baseline offset corrected spectra), with depiction of starting growth media (sgm), cultivation day (1–12), and temperature (dot/block—20 °C; circle/square—30 °C). C and G vectors approximate the increase in relative amount of citric acid and glucose respectively. The percent variances for the first five PCs are 94.01, 2.59, 0.98, 0.37 and 0.16. b and c Loading plots on the first two principal components of the PCABack to article page