“…18 Pogostemon cablin (Blanco) Benth (Labiatae), a traditional Chinese herb with aromatic characteristic, is cultivated in Asia extensively, and is always used for the treatment of vomiting, inuenza, exogenous fever, gastrointestinal disease and liver stagnation. 19,20 Patchouli oil (PO) is the extractive from the dry leaves of Pogostemon cablin. 21 PO nowadays is widely applied as an additive in health products industry and food industry.…”