Testing the Antibacterial Properties of Plant G Leaf Extracts
Abstract
Plant extracts with medicinal value have been used to treat many diseases that can either be
bacterial, fungal or parasitic among many others. The aim of the study was to evaluate the
antimicrobial activity of plant G extract extracted from plant G collected in Mbeere, Embu
county against Bacillus cereus, Candida albicans, Escherichia coli and Staphylococcus aureus
isolates. Serial dilution was carried out to obtain different concentrations of the plant extract,
for standardization of the isolates McFarland procedure was carried out within a range of 0.54
and
used
as
a
reference
to
regulate
the
turbidity
of
bacteria
suspensions.
The
plant
extract
was
extracted
using
water
as
the
solvent
and
allowing
it
to
boil
for
5-10
minutes
then
filtered
using
a
filter
paper.
After
incubation
of
the
preferred
plant
extract
concentration
with
bacteria
isolates,
zones
of
inhibition
that
had
formed
around
the
bacteria
growth
were
measured
and
recorded.
The
results
showed
that
plant
G
extract
had
antimicrobial
activity
on
all
the
bacteria
isolates.
The
study
identified
microbial
activities
of
plant
G
as
useful
and
can
be
used
as
a
medicinal
plant.