Background: Javanese tree Lannea coromandelica is believed to have a curing
effect to various diseases, and is often used as a treatment in a wide range of
injuries. According to phytochemical studies, tree bark of Javanese tree Lannea
coromandelica has been reported to contain certain compounds of carbohydrates,
steroids, alkaloids, cardiac glycosides, terpenoids, tannins,flavonoids, caumarins
and is an antimicrobial agent.
Objective: To determine the sensitivity of cortex of Javanese tree Lannea
coromandelica to Escherichia coli bacteria.
Methods: This is an experimental study that adding cortex extract of Javanese
tree Lannea coromandelica to Escherichia coli bacteria and determine the
sensitivity with disk-diffusion method or the paper disk with a concentration of
1250 ppm, 2500 ppm and 5000 ppm respectively.
Results: Cortex extract of Javanese tree Lannea coromandelica with a
concentration of 1250 ppm, 2500 ppm and 5000 pmm is 9.85 mm, 11.26 mm and
14.11 in 9 replication that tends to be weak according to the greenwood
classification.
Conclusion: Cortex extract of Javanese tree Lannea coromandelica have an
antimicrobial effect, or in other words, is sensitive to the Escherichia coli
bacteria.
Keywords: Sensitivity Test, Cortex extract of Javanese tree, Lannea
coromandelica, extraction, maceration, Escherichia coli.