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9가지 Mentha 종의 대사체 분석 비교 및 항산화 작용
Metabolite Profiles and Antioxidnant Properties on Mine Mentha spp.
Background : The genus of Mentha contains more than 25 species and has been used as cuisines, medicines, cosmetics, oral hygiene products, pharmaceuticals, pesticides, and flavor enhancing agent. Due to economical value of these species, many studies have identified and isolated the beneficial constituents such as flavonoids, terpenoids, and volatile compounds. In this study, the primary and secondary metabolites were investigated from the aerial parts of nine different Mentha species including peppermint (M. piperita), pennyroyal mint (M. pulegium), spearmint (M. spicata), horse mint (M. longifolia), water mint (M. aquatica), apple mint, pineapple mint (M. suaveolens), and chocolate mint, eau de cologne mint (M x piperita hybrids). Also, we reported the antioxidant properties using extracts of obtained plants. Methods and Results : In total, 67 metabolites were detected using gas chromatography time-of-flight mass spectrometry (GC-TOFMS). The difference among nine Mentha spp. by principal components analysis has been investigated. Various phenoilic compounds and carotenoids were characterized quantified in Mentha plants by HPLC. Of these, rosmarinic acid was found to be rich in most of this family. In addition, the highest content of riboflavin were indicated in spearmint. Moreover, the highest antioxidant activities (88.6 % 100 μl/ml in DPPH assay, 76.2% 100 μl/ml in hydrogen peroxide radical scavenging activity, and 0.076 absorbance in reducing power assay) have been shown in horse mint. Conclusion : We determined the differences in accumulation of primary and secondary metabolites (phenolic compound, carotenoid, and riboflavin) among nine Mentha species. Totally, 67 primary metabolites were identified and compared the difference by principal components analysis. Besides, horse mint has the highest and strongest antioxidant activities compared to others.
