Phenylpropenoid content in high-altitude cultivated Rhodiola rosea L. provenances according to plant part, harvest season and age

摘要: Abstract The phenylpropenoid glycosides rosavin, rosarin, rosin summarised as ‘total rosavins’ are quality indicators of Rhodiola rosea L. Here we report the systematic quantification these and aglycon cinnamyl alcohol in various provenances cultivated homogenously at 1580 m altitude. (I) We examined rhizomes versus roots cultivation year 9 (20 provenances). Extracts (70% ethanol) contained 0.5–4.3 mg/mL (rhizomes) 0.4–2.5 mg/mL (roots) total rosavins. rosavin/cinnamyl ratio (average 8.1:1, 6.2:1), was more influenced by plant origin than part. additionally analysed salidroside including its tyrosol. rosavins/salidroside ratios (including aglycons) 6.4:1 (rhizome) 5.5:1 (root) indicated authentic R. independent part origin. (II) Rhizomes extracts (8 provenances) from dates during years 6 7 0.4–4.8 mg/mL rosavins corresponding to 0.2–3.0% dry drug. Age (decreasing trend) provenance impact were superposed seasonal variation with a peak spring. Rosavin/cinnamyl North European plants 3–8:1, for Alpine/Pyrenean 9–14:1. (III) Compared our previous dataset South England, on average, there no major difference between values 65 m apart moderately higher As per provenance, absolute site dependent but glycoside/aglycon consistent. In conclusion, this is first investigation high altitude demonstrating extent part, season age influence values. contrary, relative phenolic compound profiles mostly origin-determined, conditions site, could be used authentication control.