Antibacterial Activity of Globba Winitii Rhizome Extracts Against Staphylococcus aureus

Abstract

This study is an experimental research which aimed to examine the effect of extracts from the rhizome of G. winitii C.H. Wright to inhibit the growth of Staphylococcus aureus bacteria. The rhizome of G. winitii was extracted by using maceration method with ethanol 95 percent for 7 days gave the crude extract yield 1.6 % w/w on dry basis. The extracts were tested to inhibit the growth of S. aureus with Agar disc diffusion method. The concentration of the extract tested was 100, 50 and 25 mg / ml. The study found that extracts from the rhizome of G. winitii can inhibit the growth of S.aureus bacteria. The averaged value of inhibition zone was 2.094 ± 1.343, 0.942 ± 0.529 and 0.802 ± 0.604 mm., respectively. Which the concentration of the extract that can inhibit the best is 100 mg / ml. It was found that the bacterial growth inhibition was related to the rhizome extracted concentration. The results of this experiment could be used as preliminary data for further study of G. winitii as a mixture of pharmaceutical and health products to inhibit or control the number of bacteria, which will be beneficial to add the value of this plant to promote the cultivation and processing of quality herbs