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. 2016 Apr;20(2):77–83. doi: 10.7508/ibj.2016.02.002

Fig. 1.

Fig. 1

Superimposed 500 MHz H1NMR spectra of logarithmic and stationary phases of L. major 1H NMR. Metabolites were assigned to resonances within the aliphatic regions (-0.05-9.5 ppm) of the NMR spectra. Trimethylsilyl propionate was used as the internal standard for chemical shift calibration