Isolation and characterization of cytotoxic and antioxidant biomarkers from the aerial parts of Suaeda aegyptica

Abstract

Chronic disease is an irregular change inside or outside of the tissues and organs that results in accumulation, local damage, and inflammation or irritation. Suaeda aegyptiaca (S. aegyptiaca) is a plant that has been used for a long time for the treatment of human diseases. Therefore, the aim of this present research study is to prepare various plant extracts and screen their antioxidant activity spectroscopically, and later on to isolate antioxidant biomarkers from the significantly highest active crude extract of the aerial parts of S. aegyptiaca. To attain the present objectives, different crude extracts were prepared from the aerial parts of S. aegyptiaca by using a maceration method. The antioxidant and cytotoxic activities of the prepared aerial crude extracts of S. aegyptiaca were determined by 2,2-diphenyl-1-1-picrylhydrazyl (DPPH) and brine shrimp lethality (BSL) methods, respectively. All the prepared aerial crude extracts of the particular plant at six different concentrations showed significant antioxidant activity against the DPPH. The ethyl acetate crude extract showed the highest antioxidant activity, and the lowest activity was in the butanol extract. However, all the aerial crude extracts of S. aegyptiaca were prepared at different concentrations did not show any activity against the BSL method. Based on the antioxidant activity results, the ethyl acetate extract was selected for the isolation of antioxidant compounds. The extract was purified using column chromatography by using different solvent ratios. A series of test tubes were collected with a volume of 3 mL and depending on the similar retention mobility (R_f) behavior, a total of twelve fractions were prepared. Similarly, the antioxidant activity of the obtained twelve fractions from column chromatography was determined by the same DPPH method. All the fractions showed significant antioxidant activity. Among the fractions from the column, fraction 6 gave the highest antioxidant activity and the lowest was fraction 1. In conclusion, all the aerial extracts showed promising activities against DPPH and the fraction with the highest antioxidant activity could be used as natural antioxidant biomarkers to prevent cell damage.