John Amstel M. Barrios, Ian Louise O. Celestino (March 2012)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
This study was conducted to determine the antibacterial effects of ripe Averrhoa bilimbi juice on Staphylococcus aureus thru computing the bacterial reduction after a contact time of 36 hours. The ripe bilimbi samples were collected and then extracted to obtain the juice for the study. The pure Staphylococcus aureus culture was then prepared using dilution method, 3 replication were made and labelled culture plates. The plates were incubated. Result showed that all replications of the culture plates in contact with the ripe bilimbi juice inhibited the growth of Staphylococcus aureus after 36 hours of incubation. The culture plates were placed under a colony counter to count the colony forming units. The juice exhibited a 100% inhibition in bacterial population in the culture plates. Through the observation of the culture plates under a colony counter, it was determined that ripe Averrhoa bilimbi juice has an antibacterial property against Staphylococcus aureus.