Molecules, Vol. 28, Pages 1505: Intraspecific Variability of Stinging Nettle (Urtica dioica L.)

Molecules, Vol. 28, Pages 1505: Intraspecific Variability of Stinging Nettle (Urtica dioica L.) Molecules doi: 10.3390/molecules28031505 Authors: Sylwia Koczkodaj Jarosław L. Przybył Olga Kosakowska Zenon Węglarz Katarzyna B. Bączek The purpose of the work was to determine the intraspecific variability of the stinging nettle, in respect of the mass of leaves and their chemical composition, including the content of phenolic compounds and assimilative pigments. The objects of the study were 10 populations of nettle, originating from the eastern and southern part of Poland. The results obtained indicate a high level of variability between and within the populations investigated but not strictly related to their geographical locations. The mass of the leaves ranged from 0.19 to 0.28 kg dry weight (DW)/plant (Coefficient of variation (CV) = 16.33%). Using HPLC–DAD, four phenolic acids were detected, i.e., caffeoylmalic (570.97–1367.40 mg/100 g DW), chlorogenic (352.79–1070.83 mg/100 g DW), neochlorogenic (114.56–284.77 mg/100 g DW) and cichoric (58.31–189.52 mg/100 g DW) acids, with the last one differentiating populations to the highest degree (CV = 48.83%). All of the analyzed populations met the requirements of the European Pharmacopoeia (Ph Eur 10th) concerning the minimum content of caffeoylmalic and chlorogenic acids in nettle leaves (not less than 0.3%). Within the flavonoid fraction, ...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research