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PLOS ONE
Volume 9, Issue 12, Pages -Publisher
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0114767
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The chemical composition, anti- inflammatory, cytotoxic and antioxidant activities of essential oil from leaves of Mentha piperita (MEO) grown in China were investigated. Using GC- MS analysis, the chemical composition of MEO was characterized, showing that it was mainly composed of menthol, menthone and menthy acetate. MEO exhibited potent anti- inflammatory activities in a croton oil-induced mouse ear edema model. It could also effectively inhibit nitric oxide (NO) and prostaglandin E2 (PGE2) production in lipopolysaccharide (LPS)-activated RAW 264.7 macrophages. The cytotoxic effect was assessed against four human cancer cells. MEO was found to be significantly active against human lung carcinoma SPC-A1, human leukemia K562 and human gastric cancer SGC-7901 cells, with an IC50 value of 10.89, 16.16 and 38.76 mu g/ml, respectively. In addition, MEO had moderate antioxidant activity. The results of this study may provide an experimental basis for further systematic research, rational development and clinical utilization of peppermint resources.
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