FIGURE 1.
LC–MS/MS chromatograms consisting of (a) TIC (total ion chromatogram) chromatogram of standard phenolic compounds and (b) chromatogram of ethanol:water extract of Mentha piperita L. The TIC chromatogram of standard phenolic compounds includes the following compounds, numbered from 1 to 56 (1: Quinic acid, 2: Fumaric acid, 4: Gallic acid, 6: Protocatechuic acid, 8: Gentisic acid, 9: Chlorogenic acid, 10: Protocatechuic aldehyde, 24: p‐Coumaric acid, 29: Salicylic acid, 30: Cyranoside, 33: Rutin, 34: isoquercitrin, 35: Hesperidin, 37: Genistin, 38: Rosmarinic acid, 40: Cosmosiin, 42: Astragalin, 48: Naringenin, 49: Hesperetin, 50: Luteolin, 51: Genistein, 52: Kaempferol, 53: Apigenin, 54: Amentoflavone, 55: Chrysin, 56: Acacetin).