Kenji Ip (March 2010)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
Alpha-mangostin found in hulls and leaves of Garcinia mangostana are known to possess antibacterial activity against Staphylococcus aureus. The study determined the minimum inhibitory concentration was determined the minimum inhibitory concentration of crude leaf extracts of Garcinia Mangostana against Staphylococcus aureus. Crude extracts were made from using solid-liquid phase extraction method and minimum inhibitory concentration was determined using broth method by serially diluting extracts using a two-fold method. All three replicates showed the same minimum inhibitory concentration. Minimum inhibitory concentration of crude leaf extracts of G.mangostana against S.aureus was 6.25-3.125 µg/ml.