Work

Evaluation of antioxidant and antibacterial activities of seagrass Cymodocea serrulata

Year: 2025

Type: article

Abstract: Seagrasses are known to produce bioactive metabolites with promising pharmacological potential. This study investigates the antibacterial and antioxidant activities of ethanol extracts from Cymodocea serrulata . The antibacterial efficacy was evaluated using the agar disc diffusion method, where the extract against Escherichia coli , with the highest inhibition observed at concentrations of 200 µg/mL and 100 µg/mL, showing inhibition zones of 13 mm and 11 mm, respectively. In addition to E. coli , antibacterial activity was also observed against Streptococcus mutans and Staphylococcus aureus (MRSA). Antioxidant activity was assessed through DPPH and hydrogen peroxide scavenging assays. The extract a maximum DPPH scavenging activity of 53.2 ± 2.7% at 100 µg/mL, compared to a standard value of 68.2 ± 2.2%. For hydrogen peroxide scavenging, the activity increased with concentration, 62.6 ± 2.6% at 100 µg/mL, while the standard exhibited 74.5 ± 2.4% although seagrass extract antioxidant activity is slightly lower than the standard. These results highlight the potential of C. serrulata as a source of bioactive compounds with significant antibacterial and antioxidant properties. The findings suggest its promising application in the development of environmentally safe therapeutic agents.

Source: Discover Plants.

DOI: 10.1007/s44372-025-00147-x

Authors: Pavithra Thiraviyam, Aafreen, Kamala Kannan, Dhanraj Ganapathy, Pitchiah Sivaperumal

Institution: Saveetha University

Language: English

Topic: Seaweed-derived Bioactive Compounds

Subfield: Aquatic Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: diamond

Funder: University Grants Commission