Figure 2
From: The analysis of para-cresol production and tolerance in Clostridium difficile 027 and 012 strains
Detection and production of p -cresol by 630Δ erm and R20291 using NMR spectroscopy and zNose™ gas chromatography. The relative production of p-cresol in rich media (BHI) supplemented with 0.1% p-HPA for strains 630Δerm and R20291 by A) NMR spectroscopy and B) zNose™ gas chromatography. The p-cresol peak is indicated with an arrow, at 6.7 seconds for zNose™ experiments