Abstract Context: Hypericin, isolated from Hypericum perforatum L. and about another 300
Hypericum species (Guttiferae), is one of the most powerful photosensitizers found in nature …

The aerial parts of Hypericum perforatum L. were studied to assess their composition in
basic categories of bioactive compounds and their antioxidant activity, employing commonly …

This study was designed to determine the polyphenolic contents of the extracts and to
evaluate the antioxidant activity of Hypericum origanifolium Willd. and H. montbretii …

Counter-current chromatography (CCC) combined with pre-separation by ultrasonic solvent
extraction was successively used for the separation of series bioactive compounds from the …

In the present work we carried out a phytochemical and biological investigation on three
Hypericum species, ie Hypericum reflexum, Hypericum canariense and Hypericum …

Hypericum species have been used in traditional medicine for various purposes including
neoplastic diseases. In the present study, antiproliferative and antioxidant activities of …

Investigations have been made to develop an efficient protocol for identification and
quantification of phenolic acids and flavonoids in hairy roots (HR) of Hypericum perforatum …

The aim of this study was to perform a phytochemical analysis of Hypericum maculatum
aerial parts harvested from different areas of Transylvania (Romania) and to obtain a dry …

Among 484 Hypericum L.(Guttiferae/Hypericaceae) species, widespread in warm temperate
areas throughout the world, only H. perforatum is widely used in official medicine …

Seven samples of Hypericum perforatum L.(St. John's wort) were collected throughout
Tuscany; the dried extracts were assayed to determine the concentration of the constituents …