Qualitative analysis of phytochemicals, antibacterial activity, and mycelial growth inhibition of three different plants.

Objective: The objective of this study was to screen the phytochemical compounds, antibacterial activity, and mycelial growth inhibition of three different medicinal plants, namely Couroupita guianensis, Morinda tinctoria, and Tabernaemontana divaricata. Materials and Methods: The antibacterial activity of methanolic leaf extracts was determined by well diffusion method. Antifungal activity was determined by seeded agar technique and its phytochemical screening was also performed. Results: Among three plants, C. guianensis methanolic leaf extract shows better antibacterial activity. In mycelial growth inhibition, all three plants possess complete mycelial growth inhibition against some tested fungi, but C. guianensis leaf extract possesses better inhibition against all tested fungi. Conclusion: Among three different plants, C. guianensis methanolic leaf extract exhibited better antimicrobial activity and this may be due to the presence of phenolic compounds, tannin, and terpenoids. [ABSTRACT FROM AUTHOR]