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3rd International Conference on
Ecology, Ecosystem and Conservation Biology
Microbial Ecology & Eco Systems
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March 18-19, 2019 | Chicago, USA
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Antibacterial activity
of essential oils and
antibiotics on bacterial
strains isolated from
infected urinary tract
Marwa M Elmaghrabi, and Hanan A Ghozlan
Alexandria University, Egypt
In this study, the antibacterial
activity of some traditional
herbal oils and antibiotics
against infected urinary
tract bacterial isolates was
investigated. Oil discs with
the minimum inhibitory
concentration MIC of each
were impregnated. After
culturing and incubation the
results showed that Dill oil
is the most effective oil that
inhibited 61% of E. coli, 56%
of Gram (+) cocci, and 33% of
Gram (-) bacilli. Generally, it
inhibited 48% of all isolates.
Parsley and Celery oils
inhibited 56% of Gram (+)
cocci, followed by Gram (-)
bacilli that showed 48% and
41% inhibition, respectively.
Their effects on E. coli was
much less inhibiting 29% and
21%, respectively. Generally,
they inhibited 41% and 34%
of local urinary tract bacterial
pathogens. Thyme’s oil
showed effect only on Gram (-)
bacilli and coccobacilli reaching
37% and 21%, respectively.
It had no effect on Gram
(+) cocci. It’s generally
inhibited only 25% of isolates.
Chamomile’s oil was the
weakest tested oil. It affected
only the Gram (-) bacilli while
it had no effect on Gram
(+) cocci generally inhibited
only 5% of all isolates. In
this study, the antibiotics
tested were Amoxicillin/
clavulanate, piperacillin/
tazobactam, cefotaxime,
imipenem, amikacin,
norfloxacin, trimethoprim/
sulfamethoxazole (oxoid®).
Two Strains of Gram (+) cocci
were representative for
VITEK® system identification
as antibiotic sensitivity pattern
was done. One was sensitive
to all tested antibiotics except
imipenem and amikacin and
it was Enterococcus faecalis,
the second was resistant
to all the tested antibiotics
and it was Staphylococcus
aureus. 50% of all Gram (-)
coccobacilli strains were
submitted for VITEK®, and
they were all found to belong
to E. coli. Gram (-) bacilli
were divided into clusters
and the representatives were
identified as Morganella
morganii, Pseudomonas
aeruginosa, Pseudomonas
fluorescens, Proteus mirabilis,
and Klebsiella pneumoniae.
Biography
MarwaM. Elmaghrabi is
currently a permanent
researcher of stemcells and
tissue culture labs at Faculty of
Medicine Alexandria University.
Quality and infection control
advisor at Canadian Academy
for Science, ISO 9001:2015
lead auditor, PhD (Scholar),
(Microbiology,2012).
She accumulated 9-Years of
experience in Health Care
Organization inQuality and
Infection Control sector.She
participated in a number of
international and regional
microbiology conferences as
a speaker andmoderator. She
contributed to PAN-African and
electronic network project as
broadcasting lecture. She served
asmember of ArabQOSH of
Safety professional’s experts.
SCIENTIFIC TRACKS | DAY 2 JOURNAL OF ECOSYSTEM& ECOGRAPHY 2019, VOLUME 9 | DOI: 10.4172/2157-7625-C1-044