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Updated: Jul 15, 2026

Flavonoid Content During the Growth and Floral Development of Calendula officinalis L.
Published on: June 27, 2025
[Flavonoids in the flowers of Primula officinalis]
C Karl1, G Müller, P A Pedersen
1Forschungslabor der Weleda AG, Schwäbisch Gmünd, Bundesrepublik Deutschland.
Abstract:
From methanolic extracts of fresh flowers of Primula officinalis 19 flavonoids were isolated or detected: quercetin, luteolin, kaempferol, isorhamnetin, apigenin; quercetin 3-O-glucoside, -rutinoside, -robinobioside, -gentiobioside, -(glucosyl-(1-->2) -glucosyl-(1-->6))-glucoside, -(rhamnosyl)-robinobioside; isorhamnetin 3-O-glucoside, -rutinoside, -robinobioside, -(rhamnosyl) -robinobioside; kaempferol 3-O-rutinoside, -robinobioside; limocitrin 3-O-glucoside; 3', 4'-dihydroxyflavonglucoside. Other compounds isolated were epicatechin, epigallocatechin, and proanthocyanidin B 2.
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