UJI AKTIVITAS ANTIBAKTERI FRAKSI N-HEKSAN, ETIL ASETAT, DAN AIR DARI EKSTRAK ETANOL 96% DAUN LADA (Piper nigrum L.) TERHADAP BAKTERI Escherichia coli ATCC 25922

PRASETYO, Eko Budi (2015) UJI AKTIVITAS ANTIBAKTERI FRAKSI N-HEKSAN, ETIL ASETAT, DAN AIR DARI EKSTRAK ETANOL 96% DAUN LADA (Piper nigrum L.) TERHADAP BAKTERI Escherichia coli ATCC 25922. Skripsi thesis, Universitas Setia Budi Surakarta.

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Abstract

Pepper leaves (Piper nigrum L.) contain flavonoid, saponin, volatil oil and alkaloid. The purpose of this study was to determine the activity of n-hexane fraction, ethyl acetate fraction, the fraction of water and ethanol extracts of leaves of pepper (Piper nigrum L.) as an antibacterial against Escherichia coli ATCC 25922. Pepper leaves powder macerated with 96% ethanol, and then fractionated using n-hexane, ethyl acetate, and water solvents. Ethanol extract, n-hexane, ethyl acetate, and water fractions were tested antibacterial activity using dilution method with concentrations of 50.0%; 25%; 12.5%; 6.2%; 3.1%; 1.5%; 0.7%; 0.3%; 0.1%; 0.09% of the bacteria Escherichia coli ATCC 25922. The results showed that the fraction of n-hexane, ethyl acetate, water, and pepper leaf extract has antibacterial activity against Escherichia coli with a minimum killing concentrations levels - contribute 50 %; 12.5 %; 50 %; and 50 %. Ethyl acetate fraction of leaf pepper has antibacterial activity compared to the most active fraction of n - hexane, water and extract. Keywords: Piper nigrum L., Escherichia coli ATCC 25922, antibacterial, the fraction of n-hexane, ethyl acetat fraction, the fraction of water.

Item Type: Thesis (Skripsi)
Uncontrolled Keywords: Piper nigrum L., Escherichia coli ATCC 25922, antibacterial, the fraction of n-hexane, ethyl acetat fraction, the fraction of water
Subjects: R Medicine > RS Pharmacy and materia medica
Divisions: Fakultas Farmasi > Prodi S1 Farmasi
Depositing User: Mrs NOVI HANDAYANI
Date Deposited: 14 Oct 2019 04:34
Last Modified: 14 Oct 2019 04:34
URI: http://repository.setiabudi.ac.id/id/eprint/2017

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