UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN AFRIKA (Vernonia amygdalina Del.) TERHADAP BAKTERI Escherichia coli ATCC 25922 SECARA In Vitro

Traditional medicine is an ingredient or herb in the form of plants, animal ingredients or other ingredients.One example of traditional medicine is the African Leaf Plant (Vernonia amygdalina Del.). African leaves (Vernonia amygdalina Del.) have several chemical contentssuch as flavonoids, alkaloids, tannins and other chemical contents that are believed to be efficacious for the treatment of several diseases such as diabetes, hypertension, gout and antibacterial.Purpose: This study aims toas well as to determine the antibacterial potential of Escherichia coli by using the disc diffusion method.Result :The results of the antibacterial inhibition on ethanol extracts of African Leaves (Vernonia amygdalina Del.) are at a concentration of 20% of 7.48 ± 017 mm; 40% of 11.67 ± 0.13 mm; 60% of 14.18 ± 0.21 mm and 80% of 16.60 ± 0.17 mm. The greatest inhibitory power was obtained at 80% extract concentration which was 16.60 ± 0.17 mm