Study of the Antioxidant and Bacterial Activity of the Flavonic Glycosides Existing in the Plant "Cynodon Dactylon (L) Pers" by the Free Radical DPPH and the Reduction of Iron

Abstract

Given that Cynodon Dactylon "L" Pers is used in traditional medicine for phytotherapy, we are working on evaluating its heteroside extracts in addition to phytochemical screening and antioxidant activity assessment using the "FRAP" method for iron reduction and DPPH radical scavenging. Furthermore, research on the flavonoid components found in the two plant extracts' antibacterial properties is needed.

The antioxidant properties were demonstrated by identifying the effective inhibition concentration IC50 compared by the antioxidant effect of quercitin. The results mentioned that the extract of Ethyl Acetate has a higher activity than that of the Butanol extract "Ethyl Acetate extract IC50 ≃ 0.014 mg/ml, butanol extract IC50 ≃ 0.019 mg/ml". Also, the reducing power at the concentration of 2.5 mg/ml of ethyl acetate extract of Cynodon Dactylon was much higher (Ab=1.376 nm) compared to the Butanol extract (Ab= 1.297nm).

On the other hand, the butanol extract exerted weak activity against the referential bacterial strains. However, the ethyl acetate extract of flavonoids exhibited moderately positive activity on only two strains of "Enterococcus faecalis and Streptococcus pyogenes".