Patchoulene Epoxide Isolated from Patchouli Oil Suppresses Acute Inflammation through Inhibition of NF-κB and Downregulation of COX-2/iNOS

Figure 1

GC-MS analysis. (a) GC-MS analysis of fresh patchouli oil with one-year storage time. (b) GC-MS analysis of stale patchouli oil with ten-year storage time. Numbers indicated on peaks corresponded to those in Table 2. (c) GC-MS analysis of the unknown compound isolated from stale patchouli oil with ten-year storage time.