Bacterial inhibition with liposoluble extracts of red and pardas algae

CHED 276

Ada Y. González, yilmy_14@hotmail.com1, Maiselle Garcia, mgm-21@hotmail.com2, and Guido Peña2. (1) Department of Physics and Chemistry, University of Puerto Rico at Arecibo, P.O. Box 4010, Arecibo, PR 00614, (2) Department of Physics and Chemistry, University of Puerto Rico at Arecibo, P.O. Box 4010, Arecibo, PR 00614
Since the past, seaweeds have been utilized as food and medicine. Given the biological activities of seaweeds numerous studies have been executed particularly in macroalgae, but still are far away of it pharmacological application. The seaweeds were collected in the reef areas of La Parguera, Lajas Puerto Rico, after washing and grinding them we proceed to the extraction using organic solvents in a proportional mix 2:1 of chloroform and methanol. Employing rotoevaporation the organic solvents were eliminated from the liposoluble extracts of the algae. The liposoluble extracts were maculated in bacterial cultures, to Gram (+): Bacillus subtilis, Staphylococcus aureus and two Gram (-): Pseudomona aeroginosa and Echerichia coli, to compare its bacterial inhibition with penicillin and gentamycine. The results demonstrated that the inhibition varies depending of the type of seaweed and bacteria. It has been noted that there is also a stationary effect with the inhibition that is probably related with the seaweeds reproduction cycle.
 

Undergraduate Research Poster Session: Analytical Chemistry
11:00 AM-1:00 PM, Monday, March 26, 2007 Hyatt Regency Chicago -- Riverside Center, Poster

Division of Chemical Education

The 233rd ACS National Meeting, Chicago, IL, March 25-29, 2007