Antioxidant, antimicrobial and urease inhibiting activities of methanolic extracts from Cyphostemma digitatum stem and roots

Abstract

Cyphostemma digitatum stem and roots extracts were investigated for antioxidant, antimicrobial, urease inhibition potential and phytochemical analysis. Phytochemical screening of the roots and stem extract revealed the presence of secondary metabolites including flavonoids, alkaloids, coumarins, saponins, terpenoids, tannins, carbohydrates/reducing sugars and phenolic compounds. The methanolic extracts of the roots displayed highest antioxidant activity (93.518%) against DPPH while the crude methanolic extract of the stem showed highest antioxidant activity (66.163%) at 100 μg/mL concentration. The methanolic extracts of both stem and roots were moderately active or even found to be less active against the selected bacterial and fungal strains (Tables S2 and S3). The roots extract (methanol) showed significant urease enzyme inhibition activity (IC₅₀ = 41.2 ± 0.66; 0.2 mg/mL) while the stem extract was found moderately active (IC₅₀ = 401.1 ± 0.58; 0.2 mg/mL) against thiourea (IC₅₀ = 21.011; 0.2 mg/mL).

Keywords:

• Cyphostemma digitatum
• roots and stem
• phytochemical screening
• antibacterial
• antifungal
• antioxidant
• enzyme inhibition activity

Acknowledgements

The authors are thankful and grateful to the University of Peshawar, Pakistan, for providing research facilities.

Disclosure statement

No potential conflict of interest was reported by the authors.

Additional information

Funding

We are thankful to the Yemen Ministry of Higher Education and Yemen Standardization Metrology and Quality Control Organization for providing scholarship.