Analysis of polyphenolic acids belonging to goldenrod (Solidago L.) species

Goldenrod is a perennial plant belonging to the Asteraceae family. It has several pharmacological functions, such as promoting diuresis, anti-inflammatory, analgesic, antispazmolitiniu, antibacterial and antifungal as well as anti-oxidative and anti-tumor activity. Of goldenrod made a medicaments stimulating diuresis. It also includes in production of tea „Diuretiko“ (UAB „Acorus Calamus”) composition in Lithuanian. The aim of this research was to make polyphenolic acids qualitative and quantitative analysis of the goldenrod extracts using high-performance liquid chromatography. Was prepared Solidago virgaurea and Solidago gigantea leaves and flowers extracts of aqueous methanol (70%). They were analyzed in HPLC method. For detection was used photodiode array detector. The results were compared with standard compounds (chlorogenic and neochlorogenic acids) data. Polyphenolic acids determined at the wave length of 324nm. Has been identified two polyphenolic acids: chlorogenic and neochlorogenic. In Solidago virgaurea chlorogenic acid is 1.31% and neochlorogenic acid - 0.06%. In Solidago gigantea chlorogenic acid percentage is 2.35%, and neochlorogenic acid - 0.02%