Figure 5: SPME/GC-MS chromatogram. GC/MS chromatogram of volatile compounds identified from gas phase of Enterobacter cloacae E010 cultured in (A) KB or (B) KB mixed with perlite (KB-perlite). Mock control (CK) contained KB medium only. E010 strain was grown in KB broth at 30°C for 2 days. Volatile compounds were collected using a solid-phase microextraction (SPME) device and analyzed by GC/MS chromatography.