Τίτλος:
Traditionally used sideritis cypria post.: Phytochemistry, nutritional content, bioactive compounds of cultivated populations
Περίληψη:
Sideritis species are recognized as important medicinal plants and their commercial demand is continuously on the rise both in the European and in the global market. Consequently, the cultivation of Sideritis species has been occurred to successfully meet the need for mass production of high-quality plant material. The present study was undertaken in order to investigate the chemical composition of cultivated S. cypria. Infusions of flowers and leaves were prepared separately, according to the European Medicine Agency (EMA) monograph. The infusion of the flowers revealed the presence of four flavones, isoscutellarein-7-O-[6′″-O-acetyl-β-D-allopyranosyl-(1→2)-β-D-glucopyranoside, its 4′-O-methyl-derivative, 4′-O-methyl-hypolaetin-7-O-[6′″-O-acetyl-β-D-allopyranosyl-(1→2)-β-D-glucopyranoside, and isoscutellarein-7-O-[6′″-O-acetyl-β-D-allopyranosyl-(1→2)]-6″-O-acetyl-β-D-glucopyranoside; four phenylethanoid glucosides, acteoside, leucosceptoside A, lamalboside, and leonoside A; one iridoid, melittoside, and one phenolic acid, chlorogenic acid, while the infusion of the leaves of the same population afforded the same first two flavones; five phenylethanoid glucosides, acteoside, leucosceptoside A, lavandulifolioside, leonoside A, and lamalboside; melittoside and chlorogenic acid. The structural elucidation of the isolated compounds was undertaken by high-field NMR spectroscopy. Moreover, the essential oils of the flowers and leaves were studied by GC-MS, separately. In addition, the mineral, bioactive compounds, protein and carbohydrate contents were evaluated for both plant materials. © 2020 Lytra, Tomou, Chrysargyris, Drouza, Skaltsa and Tzortzakis.
Συγγραφείς:
Lytra, K.
Tomou, E.-M.
Chrysargyris, A.
Drouza, C.
Skaltsa, H.
Tzortzakis, N.
Λέξεις-κλειδιά:
4' o methyl derivative; 4' o methyl hypolaetin 7 o [6' '' o acetyl beta dextro allopyranosyl (1 2) beta dextro glucopyranoside]; acteoside; chlorogenic acid; essential oil; isoscutellarein 7 o [6' '' o acetyl beta dextro allopyranosyl (1 2) 6' '' o acetyl beta dextro glucopyranoside]; isoscutellarein 7 o [6' '' o acetyl beta dextro allopyranosyl (1 2) beta dextro glucopyranoside]; lamalboside; leonoside A; leucosceptoside A; melittoside; mineral; plant glycoside; unclassified drug, Article; biological activity; carbohydrate analysis; chemical composition; controlled study; cultivated species; drug isolation; drug mechanism; drug structure; flower; mass fragmentography; nuclear magnetic resonance spectroscopy; nutrient content; phytochemistry; plant leaf; protein content; Sideritis; Sideritis cypria
