The antibacterial activity is believed to be due to the
presence of secondary metabolites like alkaloids, tannins,
steroids, phenol, saponins, flavonoids compounds, which
are previously reported for their antimicrobial property
[9-11]. It is therefore conceivable that these extract could
be used against infections caused by these inhibited bacteria
and the results showed a good correlation between
the reported use of N. nouchali in traditional medicine
against infectious diseases and in in vitro effectiveness.
This study may not be adequate to suggest potential antibiotic
agent considering the MIC value, and the zone of
inhibition could be affected by the solubility and rate of
diffusion in agar medium or its volatilization which could
affect the results. However, this approach could be considered
as preliminary step to find out promising candidates
[1]. It is essential to do the quantitative analysis with the
help of a chromatographer in gas phase and identify the
metabolites responsible for antibacterial activity