merged

Antibacterial Activity From Marine Sponges, Theonella Spp.
Faridatul Afiqah Binti Zahari
Supervisor: Dr. Jasnizat Bin Saidin
Bachelor of Science (Marine Biology)
School of Marine and Environmental Sciences
Antibiotics resistance are one of major concern for the last decade. Recently, some of
the pathogen are able to resist all or nearly all of available antibiotic. This study focus
on the investigation of potential marine sponges, Theonella cylindrica and Theonella
swinhoei for the antibacterial properties. Bioautography technique was used to
evaluate the potential of Theonella spp. extract to inhibit the test bacteria which were
Micrococcus sp., Bacillus subtilis, Escherichia coli and Klebsiella pneumonia. Result of
bioautography showed that both extracts exhibit no antibacterial properties. This
might be because few factors such as the sample itself does not contain any
antibacterial compounds. Second, this might be due to non-optimized bioautography
method such as amount of sample applied is too small and it oxidized due to
environmental exposure during the test. For future study it is suggested that the
optimization of this technique to be done before test will be conducted.
1808 | UMT UNDERGRADUATE RESEARCH DAY 2018