SKRINING AKTIVITAS ANTIMIKROBA EKSTRAK ETANOL 80% TANAMAN ACMENA ACUMINATISSIMA, EUCALYPTUS GLOBULUS,GOMPHOSTEMMA JAVANICUM, STROBILANTHES INVOLUCRATA, CALLIANDRA PORTORICENSIS DAN CESTRUM CALYSINUM TERHADAP STAPHYLOCOCCUS AUREUS, ESCHERICHIA COLI DAN CAN

Dried leaves of Acmena acuminatissima (Myrtaceae) and Calliandra portoricensis (Fabaceae), dried stems of Gomphostemma javanicum (Lamiaceae), Eucalyptus globulus (Myrtaceae) , Cestrum calysinum (Solanaceae) and dried herb of Strobilanthes involucrata (Acanthaceae) were extracted by macera tion technique using ethanol 80% as solvent. The extracts were tested for antimicrobial activity against Staphylococcus aureus, Escherichia coli and Candida albicans using Agar Dilution Method at concentrations of 62,5 μ g/ml; 125 μ g/ml; 250 μ g/ml; 500 μ g/mland 1000 μ g/ml. The antimicrobial activity of the extract is expressed as Minimum Inhibitory Concentration (MIC). The result showed that the ethanol 80% leaf extract of Acmena acuminatissima is the most active against Staphylococcus aureus , Escherichia coli and Candida albicans with MIC values of 500 μ g/ml. The ethanol 80% stem extract of Eucalyptus globulus is active against Staphylococcus aureus , Escherichia coli and Candida albicans with MIC values of 1000 μ g/ml. While the ethano l 80% leaf extract of Calliandra portoricensis , ethanol 80% stem extract of Gomphostemma javanicum and Cestrum calysinum and the ethanol 80% herb extract of Strobilanthes involucrata showed no antimicrobial activity against th e tested microbes. Skrining for chemical compound groups using Thin Layer Chromatography (TLC) showed the presence of terpenoid, polifenol and antrak uinon in the plant extract.