CONTRIBUTIONS TO THE
PHARMACOGNOSTICAL AND
PHYTOBIOLOGICAL STUDY ON
TARAXACUM OFFICINALE (L.) WEBER.
MARIA-LIDIA POPESCU*, MIHAELA DINU, DIANA DANIELA
URSACHE
,,Carol Davila“ University of Medicine and Pharmacy, Faculty of
Pharmacy, 6 Traian Vuia Street, Bucharest, Romania
*corresponding author: lidiapopescu24@yahoo.com
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Abstract:

The objective of this study was the comparative pharmacognostical analysis of root, stem, leaf and flower of Taraxacum officinale (L.) Weber, dandelion (Asteraceae). The microscopic examination showed the following specific anatomical elements: pappus, latex tubes, epidermal cells with irregularly thickened walls and inulin as deposit substance. The chemical analysis established the presence of flavonoids (rutin, hiperoside, quercetin), hydroxycinnamic acid derivatives (caffeic acid, chlorogenic acid), catehic tannins, sterols, triterpenes, carotenoids, coumarins and mucilages. Flowers and leaves have a higher amount of polyphenols compared to stems and roots. The Triticum bioassay (Constantinescu method) revealed for dandelion aqueous extracts two types of effects on cell division (mitoinhibitory or stimulative), depending on extract concentration.

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