Reversed phase-high-performance liquid chromatography simultaneous estimation of phenolic compounds in hydroalcoholic extract of Potentilla fulgens root

The roots of Potentilla fulgengs have been utilized for a long time as an astringent and tonic for treating gum and tooth diseases, microbial contagions, inflammation, diabetes mellitus, and wounds and are rich in polyphenols and flavonoids. Authentication and constant excellence are the rudimentary limitations of herbal medicines and their complexity is a key challenge for quality control. High-performance liquid chromatography has become an important technique for the quality control of herbal medicines because of its simplicity and uniformity. It can be applied for the identification, confirmation, and quality control of herbal medicines. So, an approach using reversed-phase high-performance liquid chromatography was developed and validated for the simultaneous determination of phenolic compounds in the hydroalcoholic extract (methanol:water::70:30% v/v) of Potentilla fulgens roots. The results revealed that ellagic acid was found in the highest amount (8.191 & PLUSMN; 0.463 mg/g) followed by rutin (5.429 & PLUSMN; 0.062 mg/g) and caffeic acid (3.032 & PLUSMN; 0.453 mg/g) among the studied phenolic compounds while quercetin was not detected. The validation parameters involved selectivity, linearity, range, limits of detection and quantitation, precision, and accuracy. All calibration curves were linear (R-2 > 0.99) within the range, and good precision (relative standard deviation < 2.0%) and recovery (96.129%-117.110%) were found for all standards.