Jaybayl Abril B. Jayme (March 2014)
Philippine Science High School Western Visayas Campus – Department of Science and Technology (DOST-PSHS WVC), Brgy. Bito-on, Jaro, Iloilo City 5000, Philippines
ABSTRACT
The anti-bacterial activity of soaps made from 90% ethanolic extracts of Syzgium samarangense leaves was assessed using streak plate method. Soaps composed of 10%, 20%, and 30% extract in base soap were administered with control groups consisting of the soap base for negative control. Measurements of the zone of inhibition made after the streak plate method using a calliper. The 10%, 20%, and 30% non-developed soaps were not observed to have a significant anti-bacterial activity against Staphylococcus aureus. Due to the failure of the saponification process, the soaps were not developed as planned. Further investigations on quality control in terms of shelf life, toxicity, etc. should be made before testing on human skin.