ANALYSIS OF SECONDARY METABOLIC COMPOUNDS OF PURPLE LEAF EXTRACT (Graptophyllum pictum (L.) Griff.) ON Aeromonas hydrophila

Abstract

Aquaculture production can be hampered due to outbreaks of pathogens such as Motile Aeromonas Septicemia (MAS) disease caused by Aeromonas hydrophila. One alternative to prevent it is to use natural ingredients such as purple leaf extract (Graptophyllum pictum (L.) Griff). The purpose of this study was to test the content of secondary metabolites by phytochemical screening test and determine its effect as an antibacterial agent through the MIC (Minimum Inhibitory Concentration) method. Purple leaf extract is known to be bacteriostatic because it is only able to inhibit the growth of bacteria. From the results of the phytochemical screening test, the crude extract of purple leaves was positive for active compounds in the form of alkaloids, flavonoids, saponins, triterpenoids and tannins in which these active substances functioned as antibacterials in this study.