Published in Scientific Papers. Series A. Agronomy, Vol. LXIV, Issue 1
Written by Rodica BEICU, Ersilia ALEXA, Marius BOLDEA, Georgeta POP, Alina NEACȘU, Ilinca IMBREA
This study analyses the amount of total polyphenolic content (TPC) in dry plant materials collected from different populations of Thymus belonging to several spontaneous species from multiple regions of the Banat area. The aim of the research is to identify the quantitative differences of TPC in the thyme populations studied, regarding both the area and the species, or potentially subspecies. The TPC was determined with Folin-Ciocâlteu reagent using gallic acid as standard, and the concentration of ethanolic extracts was expressed in mg/g dry matter. The results obtained were statistically analysed using proximity matrices that indicate the similarity of the polyphenolic profile in the populations studied. The populations were classified clustered according to the similarity of the polyphenolic profile. The data obtained indicate significant differences in the polyphenolic profile at species and harvest area level. The possibility of using this indicator as a chemical fingerprint for the spontaneous thyme species from Banat was analysed.
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