title: Metabolite profile, antioxidant capacity, and inhibition of digestive enzymes in infusions of peppermint (Mentha piperita) grown under drought stress.
abstract: Peppermint (Mentha piperita) infusions represent an important source of antioxidants, which can be enhanced by inducing abiotic stress in plants. The aim of this study was to evaluate the effect of drought stress on peppermint cultivation as well as the metabolite profile, antioxidant capacity, and inhibition of digestive enzymes of resulting infusions. At 45 days after planting, irrigation was suppressed until 85 (control), 65, 35, 24, and 12% soil moisture (SM) was reached. The results showed that 35, 24, and 12% SM decreased fresh (20%) and dry (5%) weight. The 35 and 24% SM treatments significantly increased total phenolic and flavonoid contents as well as antioxidant capacity. Coumaric acid, quercetin, luteolin, and naringenin were detected only in some drought treatments; however, in these infusions, fewer amino acids and unsaturated fatty acids were identified. The 24 and 12% SM treatments slightly improved inhibition of pancreatic lipase and α-amylase activity. Therefore, induction of moderate water stress in peppermint is recommended to enhance its biological properties.
authors.affiliation: Research and Graduate Studies in the Department of Food Science, School of Chemistry, Universidad Autónoma de Queretaro , Centro Universitario, Cerro de las Campanas S/N, Queretaro, Queretaro 76010, Mexico.
authors.forename: Marely G
authors.initials: MG
authors.lastname: Figueroa-Pérez
authors.forename: Nuria Elizabeth
authors.initials: NE
authors.lastname: Rocha-Guzmán
authors.forename: Iza F
authors.initials: IF
authors.lastname: Pérez-Ramírez
authors.forename: Edmundo
authors.initials: E
authors.lastname: Mercado-Silva
authors.forename: Rosalía
authors.initials: R
authors.lastname: Reynoso-Camacho
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000737:chemistry* / Q000378:metabolism; D004063:Digestion; D055864:Droughts; D004791:Enzyme Inhibitors / Q000737:chemistry* / Q000378:metabolism; D008049:Lipase / Q000032:analysis / Q000037:antagonists & inhibitors*; D036142:Mentha piperita / Q000737:chemistry / Q000254:growth & development / Q000378:metabolism*; D010936:Plant Extracts / Q000737:chemistry* / Q000378:metabolism; D018515:Plant Leaves / Q000737:chemistry* / Q000378:metabolism; D013552:Swine; D000516:alpha-Amylases / Q000032:analysis / Q000037:antagonists & inhibitors*
chemical_list: D000975:Antioxidants; D004791:Enzyme Inhibitors; D010936:Plant Extracts; D008049:Lipase; D000516:alpha-Amylases
keywords: antioxidant capacity; drought stress; inhibition of enzyme activity; peppermint infusion; phenolic compounds