- Tytuł:
- Flavonoids and coumarins from Hieracium pilosella L. [Asteraceae]
- Autorzy:
-
Gawronska-Grzywacz, M
Krzaczek, T. - Powiązania:
- https://bibliotekanauki.pl/articles/59337.pdf
- Data publikacji:
- 2009
- Wydawca:
- Polskie Towarzystwo Botaniczne
- Tematy:
-
weed
flavonoids
invasive weed
mouse-ear hawkweed
coumarin
herb
Compositae
Hieracium pilosella - Opis:
- Typical chromatographic methods were successfully applied to isolate nine flavonoid compounds and two coumarin glycosides from the inflorescences and the herb of Hieracium pilosella L. Repeated column chromatography, occasionally paper chromatography and recrystallization made the separation of three flavonoid aglycones and six glycosides - possible. Coumarin glycosides were isolated by preparative thin layer chromatography. Subsequent UV, NMR and MS analyses have led to identification of the following flavonoid derivatives: known for the species - apigenin, luteolin, luteolin 7-O- ß-glucopyranoside, luteolin 4’-O-ß-glucopyranoside, isoetin 7-O-ß- -glucopyranoside, isoetin 4’-O-ß-glucuronide and new for the species – kaempferol 3-methyl ether and apigenin 7-O-ß-glucopyranoside. Third isoetin glycoside contained two different sugar moieties: xylose and glucose, probably attached to the hydroxyl groups at C-4’ or C-4’ and C-2’(or 5’) of an aglycone. Umbelliferone 7-O-ß-glucopyranoside (skimmin) and new for the genus Hieracium esculetin 7-O-ß-glucopyranoside (cichoriin) were determined by NMR and MS methods.
- Źródło:
-
Acta Societatis Botanicorum Poloniae; 2009, 78, 3; 189-195
0001-6977
2083-9480 - Pojawia się w:
- Acta Societatis Botanicorum Poloniae
- Dostawca treści:
- Biblioteka Nauki
Artykuł