Fig 1. a) Truncated (1100-1850nm) raw spectra (n = 4500) of the analyzed 15 Lactobacillus strains acquired between 40 min and 20 h of the cultivation time; b) Growing dynamics of L. bulgaricus S6 determined at λ = 665 nm; c) Calculated ratio between the distances of group centers and standard deviations (SD) of probiotic, moderate and non-probiotic groups in the plain of PC2 and PC3 of MW-PCA calculated on the truncated (1100-1850nm) NIR data in the function of the cultivation time.