Abstract

Dr. P. N. Rajarajan*

ABSTRACT

The antibacterial activity of extracts of Cocos nucifera, family Arecaceae, had studied against pathogens.The coconut parts were collected from in and around Madurai. In this study selected the different parts of coconut tree they are coconut shell, leave, husk, oil, milk and selected different types of microbial strain Staphylococcus aureus, Streptococcus species, E. coli, Klebsiella. In this study selected two different solvents, they are polar solvents and non polar solvents. The two methods follow against antibacterial activity of coconut plant extract. They are agar disc diffusion method & agar well diffusion method. Among the coconut part extracts shell, leaf, husk, milk, has higher antibacterial activity in lowest concentration than the compared to the other. The phytochemical screening of crude extracts shows the presence of tannins, lignin, flavonoid, as secondary metabolites, which may contribute to the antibacterial activity.