Chemical Composition of Some Extracts of Flowers of Syrian Paronychia argentea Lam. and their Antioxidant and Antibacterial Efficacy

Abstract

Chemical composition of nonpolar extract of Syrian Paronychia argentea Lam. was determined by GC/MS. The extract contain 29 components, accounting for 98.03% of total content. The major components determined in nonpolar extract were Eucalyptol 50.55%, ethyl hexadecanoate 16.88%, and propanoic acid ester 8.31%. The antioxidants activities of polar extract of Paronychia argentea were studied, and IC₅₀ was 18.73 mg/ml. The polar extract showed antibacterial activities against Escherichia coli, Staphylococcus aureus, and Klebsiella pneumonia at concentration 10 mg/ml.