Current literature reports a wide variability in active compounds content in marketed Hypericum (Hypericum perforatum L.) preparations. In order to avoid influences by soil, climate, collection time and storage, several extracts were prepared, with different solvents, from a single stock of plant drug, collected from the wild. They were high performance liquid chromatography (HPLC) analyzed, and results were coupled with an evaluation of the antioxidant activity in vitro of each extract. Also water extracts maintained a good activity, although they were obviously lacking hypericin and hyperforin. In this sense, the home made St. John’s wort teas should be re-valued as possible beverages with interesting antioxidant properties.

Franchi, G.G., Nencini, C., Collavoli, E., & Massarelli, P. (2011). Composition and antioxidant activity of different St. John Wort (Hypericum perforatum L.) extracts. JOURNAL OF MEDICINAL PLANT RESEARCH, 5(17), 4349-4353.

Composition and antioxidant activity of different St. John Wort (Hypericum perforatum L.) extracts

FRANCHI, GIAN GABRIELE;NENCINI, CRISTINA;MASSARELLI, PAOLA
2011

Abstract

Current literature reports a wide variability in active compounds content in marketed Hypericum (Hypericum perforatum L.) preparations. In order to avoid influences by soil, climate, collection time and storage, several extracts were prepared, with different solvents, from a single stock of plant drug, collected from the wild. They were high performance liquid chromatography (HPLC) analyzed, and results were coupled with an evaluation of the antioxidant activity in vitro of each extract. Also water extracts maintained a good activity, although they were obviously lacking hypericin and hyperforin. In this sense, the home made St. John’s wort teas should be re-valued as possible beverages with interesting antioxidant properties.
File in questo prodotto:
File Dimensione Formato  
118180_UPLOAD.pdf

non disponibili

Tipologia: Post-print
Licenza: NON PUBBLICO - Accesso privato/ristretto
Dimensione 116.3 kB
Formato Adobe PDF
116.3 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11365/31926
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo