Antibacterial Effectiveness Test of Water Hyacinth Leaf Extract (Eichhornia Crassipes) Against the Growth of Porphyromonas gingivalis Bacteria

Abstract

The water hyacinth plant is proven to have medicinal properties because it has antibacterial properties in the form of flavanoids, tannins and alkaloids. Purpose to test the antibacterial effectiveness of water hyacinth leaf extract against the growth of Porphyromonas gingivalis bacteria. The type of research used is the test method was disc diffusion. The samples were divided into 4 groups each given a concentration of 7.25%, 15%, 30%, 50%, positive control (Chlorhexidine gluconate 0.2%), and negative control (aquades). Result there were inhibition zones at concentrations of 7.25%, 15%, 30%, 50% water hyacinth leaf extract. The One Way Anova test showed p <0.05, which means that there was a difference in each treatment. In conclusion, water hyacinth leaves (Eichhornia crassipes) can inhibit the growth of Porphyromonas gingivalis bacteria with the greatest inhibitory ability at a concentration of 50%, namely 6.2 mm, which is included in the medium inhibition zone category.