engleski

Quantitaive analysis of the polyphenols and tannins of Vitex agnus-castus L.

The content of total polyphenols and tannins in the leaves, flowers anf fruits of Vitex agnus-castus L. collected from various parts of Croatia was determined by spectrometric method according to Schneider. The investigation results showed the variety of total polyphenol content between plant parts ( leaves 7.36-13.20%, flowers 9.00-10.64 % and fruits 6.92-13.24%). The highest tannin content was found in leaves ( 0.68-3.00%), but it was similar in flowers and fruits ( 0.24-2.00%, respectively 0.24-1.60%).

Vitex agnus-castus L.; polyphenols; tannins

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