In Vitro Antimicrobial Activity of Two Mangrove Plants Aegiceras Corniculatum and Hibiscus Tiliaceous

Varahala Rao Vadlapudi¹ and Varaprasad Bobbarala²  

¹Department of Botany, Andhra University, Visakhapatnam India

²For U Biosciences, A/4A, Park lane Residency, East Point Colony, Visakhapatnam - 530 017 India.

ABSTRACT: Antimicrobial effect of the crude methanolic extracts of Hibiscus tiliaceous and Aegiceras corniculatum was studied. Agar well diffusion method has been adopted in this study and petri dishes containing nutrient and potato dextrose agar medium seeded with the test microorganism belonging to plants and clinical were used for antimicrobial screening. Test materials diffuse from the wells to the surrounding medium of the plate. The plates are then kept in an incubator (37°) for 18 hours to allow the growth of the microorganisms. The antibacterial activity of the test agent is determined by measuring the diameter of the zone of inhibition in term of millimeter. Antimicrobial screening showed that the crude methanol extract at concentration at 100mg/ml possess antimicrobial activity against most of the test organisms depending upon the nature of their active ingredients in the extract and capacity of diffusion into the agar medium. Among the test organisms, the extract showed significant antimicrobial activity against Cladosporium herbarum, Erwinia carotovora and Streptococcus salivarius, whereas Ustilago maydis and Candida albicans showed no activity. The present study was conducted to develop newer lead for better and safer chemotherapeutic agents from natural resources

KEYWORDS: Antimicrobial; Methanol extracts; Hibiscus tiliaceous; Aegiceras corniculatum; Zone of inhibition

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