Abstract:
This study aims to determine the phytochemical content and antibacterial activity of ten types of plants against Vibrio alginolyticusandAeromonas hydropillabacteria. Choose 10 types of plants that are often used as medicine
and are commonly found in thecity of Kupang, such asPhyllanthus acidus,Euphorbia hirta,Persea gratissima,Euphorbia thymifolia,Morus australis,Justica gendarussa,Paederia scandeus,Annona squamosa,Sesbania sesban,Jatropha gossypifolia. The plant parts used are leaves, except forE.hirtaandE.thymifoliawhich are used throughout the plant. The ten types of plants were made into powder, then extracted by maceration in stages
starting from the solvent n-hexane, ethyl acetate and methanol, in addition, the water extract of the plant was also used. All types of plant extracts were tested for antibacterial using the disc method. The type of active extract was then tested for antibacterial at concentrations of 10%, 1% and 0.1%. The results showed thattypes of plants that are suspected of being antibacterial in marine fish culture are water extract and methanol extract ofE.hirtaand
E.thymifolia. While the types of plants that have the potential as antibacterial in freshwater fish farming are water extracts ofE.hirta,E.thymifoliaandJ.gendarussaleaf
