An Investigation into the Effectiveness of Green Betel (Piper betle L.) Leaf Extract Hand Sanitizer

Green betel (Piper betle L.) leaf contains anti-thrush, anti-cough, astringent, and antiseptic chemicals such as saponins, flavonoids, polyphenols, essential oils. Hand sanitizer can also be used an agent, which is a more practical option. The purpose of this study was to see how the composition green extract made by infusion affected its physical properties bacterial inhibition. samples were using different concentrations (10 - 25 wt%) with without addition tea tree oil. Sample testing included organoleptic tests, effectiveness tests on growth Escherichia coli bacteria. results showed that best found at concentration 10 wt% oil, pH ranging from 5.2 5.8 viscosities 1.32 1.99 cps, in form watery gel clear yellow color. Meanwhile, hand sensitivity revealed none could inhibit This indicates sample still insufficient growth.