CD Skripsi
Aktivitas Antibakteri Garam Daun Mangrove Tua (Sonneratia alba) Terhadap Bakteri Escherichia coli dan Bacillus cereus
Mangroves are plants that live in coastal areas that have high salinity values that cause mangroves to have halophilic properties or the ability to live in saline areas that have bioactive content in order to be used as antibacterials. Escherichia coli and Bacillus cereus bacteria are Gram Negative and Gram Positive bacteria that can cause spoilage in food, especially fishery products so that mangrove leaves are used as an alternative as an antibacterial because of its content. The purpose of this study was to determine the antibacterial activity of salt produced by Sonneratia alba leaves using distilled water as a solvent in a ratio of 1:5. The research method was conducted by direct experiment using a Complete Randomized Design (CRD). The stages of this study were the analysis of antibacterial activity, Minimum Inhibitory Concentration, Minimum Bactericidal Concentration and inhibition zone tests using the dilution method and disc method with the treatment of using different concentrations of extracts namely 1.562%, 3.25%, 6.25% and 12.5% as well as positive and negative controls as a comparison. The results showed that Sonneratia alba leaf salt has a yield of 7.32%. Sonneratia alba leaf salt has an inhibition zone diameter against Escherichia coli and Bacillus cereus bacteria, namely 17.20±0.49 mm and 4.93±3.38 mm in the use of the highest concentration of 12.5%. Sonneratia alba leaf salt is bacteriostatic, which can only inhibit the growth of Escherichia coli and Bacillus cereus bacteria.
Keywords: Antibacterial, Bacillus cereus, Escherichia coli, salt, Sonneratia alba
Tidak tersedia versi lain