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Isolation and Characterization of Exopolysaccharides (Eps)-Producer
Bacteria from Marphysa Moribidii
Siti Hazwani Binti Rosdi
Supervisor: Dr. Azila binti Adnan
Bachelor of Science (Biological Science)
School of Fundamental Science
Exopolysaccharide (EPS) is the natural high molecular weight polymer that usually
produces by bacteria for their protective mechanism and survival. Lactic acid bacteria
are the common bacteria that have been extensively studied on EPS production. EPS
is important because they can be an alternative class of bio thickeners that are widely
used in food industry. In this project, the bacteria, which isolated from the polychaete
Marphysa moribidii are used to prove the ability to produce EPS. The aim of this study
is to characterize and identify the isolated bacteria from the gut of Marphysa moribidii
and prove its ability to produce EPS. For the identification of the bacteria, several
biochemical tests were conducted. It is found that the bacteria isolated come from
family Bacillaceae, which is Bacillus cereus. Total carbohydrate analysis were also
carried out to identify the production of EPS by Bacillus cereus. In conclusion,
Marphysa moribidii has the EPS-producer bacteria, which are able to produce EPS.
Further study will be a focus on the modification of the EPS produced by this bacteria,
which is Bacillus cereus that will give more benefit to the industry.
355 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2018