Iridoids and Flavonoids of Four Siberian Gentians: Chemical Profile and Gastric Stimulatory Effect.
Some Gentiana species have been used by the nomadic people of Siberia as bitter teas or appetizers to eliminate digestive disorders (dyspepsia, heartburn, nausea, etc.). We studied the most frequently used gentians: Gentiana algida, G. decumbens, G. macrophylla and G. triflora. The aim of the present study was to evaluate the phytochemical features and gastrostimulatnt activity of these four gentian herbs. Five iridoids, seven flavones and mangiferin were detected in gentian herbs after analysis by microcolumn-RP-HPLC-UV-ESI-MS. A componential phytochemical profile of the G. decumbens herb is presented for the first time, as well as information about distinct phytochemicals found in gentian herbs. HPLC quantification of the specific compounds of gentian herbs demonstrated the high content of iridoids (24.73-73.53 mg/g) and flavonoids (12.92-78.14 mg/g). The results of biological activity evaluation of four gentian decoctions demonstrated their good ability to stimulate acid-, enzyme- and mucin-forming functions of the stomach attributed to mostly by iridoids and flavonoids. In general, it can be claimed that the gentian decoctions can be used as effective and safe appetizers and are also a good source of biologically active agents.
Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh'yanovoy Str., 6, Ulan-Ude 670047, Russia. olennikovdn@mail.ru.
Daniil N
DN
Olennikov
Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh'yanovoy Str., 6, Ulan-Ude 670047, Russia. ninkk@mail.ru.
Nina I
NI
Kashchenko
Department of Biochemistry and Biotechnology, North-Eastern Federal University, 58 Belinsky Str., Yakutsk 677027, Russia. hofnung@mail.ru.
Nadezhda K
NK
Chirikova
Institute of General and Experimental Biology, Siberian Division, Russian Academy of Science, Sakh'yanovoy Str., 6, Ulan-Ude 670047, Russia. tankhaeva.l.m@gmail.ru.
Larisa M
LM
Tankhaeva
D000818:Animals; D002851:Chromatography, High Pressure Liquid; D004353:Drug Evaluation, Preclinical; D005419:Flavonoids / Q000302:isolation & purification* / Q000494:pharmacology; D035264:Flowers / Q000737:chemistry; D005753:Gastric Mucosa / Q000187:drug effects / Q000378:metabolism; D030012:Gentiana / Q000737:chemistry*; D039823:Iridoids / Q000302:isolation & purification* / Q000494:pharmacology; D008297:Male; D010936:Plant Extracts / Q000302:isolation & purification* / Q000494:pharmacology; D018517:Plant Roots / Q000737:chemistry; D017207:Rats, Sprague-Dawley; D012800:Siberia; D021241:Spectrometry, Mass, Electrospray Ionization; D013270:Stomach / Q000187:drug effects
D005419:Flavonoids; D039823:Iridoids; D010936:Plant Extracts
Gentiana algida; Gentiana decumbens; Gentiana macrophylla; Gentiana triflora; HPLC; flavonoids; gastric secretion stimulation; iridoids