“…As far as our literature studies, only one exhibited the isolated compounds from the S. ferruginea plant: three flavonols, such as quercitrin, quercetin, and 4"-O-acetylquercitrin from an unspecified host [12]. Another literature reported the chemical constituents of the crude extract based on the principal component analysis (PCA) method from 1 H-NMR data resulting in some identified compounds, such as quercitrin, 4"-O-acetylquercitrin, catechin, alanine, threonine, valine, leucine, isoleucine, histidine, formic acid, malic acid, succinic acid, citric acid, fumaric acid, acetic acid, gallic acid, chlorogenic acid, and choline [5].…”