Oxidative Potential and Nanoantioxidant Activity of Flavonoids and Phenolic Acids in Sophora flavescens

In order to further develop and utilize the rutin from Sophora japonica, the contents of total phenolic acids and �avonoids in rutin extracts from di�erent parts of Sophora �avescens were determined, and their antioxidant activities were compared, and the basis of antioxidative activity of Sophora �avescens nanometers was discussed. e experiment found that the total �avonoid content of each extract of Huai Mi was in the range of 5.70–61.55 mg/g, the total phenolic acid content was in the range of 4.07–19.10 mg/g, and the total �avonoid and phenolic acid content of the ethyl acetate extract was signi�cantly higher than other extracts. Its reducing power, light free radicals, DPPH, ABTS+ , and scavenging rate are also signi�cantly higher than n-butanol, petroleum ether, and aqueous extracts. ∗ e cleaning ability IC50 values of DPPH· are (0.321 ± 0.0026), (0.213 ± 0.0010), and (0.169 ± 0.0014) mg/mL. e e�ective components of Sophora japonica are initially separated after the solvent extraction of each phase. e relative content and nanoantioxidant activity of total �avonoids and phenolic acids in the ethyl acetate phase extraction part were signi�cantly stronger than those in the total extract and other extraction parts, and the antioxidant capacity was e�ectively related to the dose. e �avonoids and phenolic acids in Sophora japonica are closely related to its antioxidant capacity