Advances in Zoology and Botany Vol. 11(4), pp. 239 - 245
DOI: 10.13189/azb.2023.110401
Reprint (PDF) (690Kb)

Screening of Antibacterial, Antifungal and Antioxidant Activity of Methanolic Extract from Marine algae, Hypnea indica

Anoop Appu , Ratheesh Sadanandan , Samuthirapandian Ravichandran ^*
Centre of Advanced Study in Marine Biology, Annamalai University, India

ABSTRACT

Marine algae have wide applications in food, feed, pharmacy, and industrial fields. They have a wide range of biological activities, such as anti-microbial, anti-inflammatory, and anti-viral. Hypnea is a genus of red seaweed under class Florideophyceae, which exhibits seasonal abundance and is highly influenced by seasonal variations in light, temperature, and low tidal levels. The non-flowering, marine algae Hypnea indica is the richest source of kappa- carrageenan which has a wide range of applications from food to pharmaceutical uses. The objectives of this research were to evaluate the effect of the methanolic extract of HIE against microbes and to assess its antioxidant property. By using the well diffusion method, (HIE) was evaluated for its antibacterial and antifungal activities against clinical pathogens. HIE showed an anti-fungal effect against A. niger and considerable activity against V. cholera. The results were compared against antibiotics like Gentamycin and Clotrimazole. The 2, 2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay was used to evaluate the antioxidant properties of this extract using ascorbic acid as the reference. Up to 800 mg/mL, HIE did not show any antioxidant activity. The findings of this research demonstrated that HIE has antibacterial potential against infections and that it might be used as a natural alternative to synthetic antimicrobial agents.

KEYWORDS
Marine algae, Hypnea indica, HIE, Well Diffusion Method, DPPH Assay

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Anoop Appu , Ratheesh Sadanandan , Samuthirapandian Ravichandran , "Screening of Antibacterial, Antifungal and Antioxidant Activity of Methanolic Extract from Marine algae, Hypnea indica," Advances in Zoology and Botany, Vol. 11, No. 4, pp. 239 - 245, 2023. DOI: 10.13189/azb.2023.110401.

(b). APA Format:
Anoop Appu , Ratheesh Sadanandan , Samuthirapandian Ravichandran (2023). Screening of Antibacterial, Antifungal and Antioxidant Activity of Methanolic Extract from Marine algae, Hypnea indica. Advances in Zoology and Botany, 11(4), 239 - 245. DOI: 10.13189/azb.2023.110401.