Evaluation of hplc, phytochemical, anticholinesterase and antioxidant profiles of the aerial parts of asperula taurina subsp. caucasica

Abstract

Objective: In this study, we aimed to evaluate the HPLC, phytochemical, anticholinesterase and antioxidant profiles of the aerial parts of Asperula taurina subsp. caucasica.Material and Method: The fingerprint of the phenolic compounds of the methanolic extract of the plant was obtained using RP-HPLC method. The method was also validated in terms of detection limits, quantification limits, linearity, accuracy, precision and selectivity. The phenolic contents of A. taurina subsp. caucasica were detected as proto-catechuic acid, p-OH benzoic acid and benzoic acid. In the phytochemical studies, quercetin 3-O-β-galactoside was isolated from the ethyl acetate subfraction of A. taurina subsp. caucasica using by several chromatographic methods. The structure of the pure compound was elucidated by means of spectral analysis ( 1 H NMR, 13 C NMR, and ESI-MS). Anticholinesterase and antioxidant activity studies were performed on quercetin 3-O-βgalactoside and the methanolic extract of the plant.Result and Discussion: While quercetin 3-O-β-galactoside shown moderate inhibitory activity against butyrylcholinesterase at 200 μg/ml, quercetin3-O-β-galactoside and the metanolic exract of