UJI AKTIVITAS ANTIBAKTERI FRAKSI n-HEKSAN, ETIL ASETAT, DAN AIR DARI EKSTRAK ETANOL DAUN KAPUK (Ceiba petandra Gaertn) TERHADAP BAKTERI Escherichia coli ATCC 25922

Oematan, Helena Maria (2013) UJI AKTIVITAS ANTIBAKTERI FRAKSI n-HEKSAN, ETIL ASETAT, DAN AIR DARI EKSTRAK ETANOL DAUN KAPUK (Ceiba petandra Gaertn) TERHADAP BAKTERI Escherichia coli ATCC 25922. Skripsi thesis, Universitas Setia Budi Surakarta.

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Abstract

Cottonwood leaves (Ceiba pentandra Gaertn) contain saponin, flavonoid, tanin and terpenoid. The aim of the experiment was to find out the activity of nhexane fraction, ethyl acetate fraction, water fraction and ethanol extract of Cottonwood leaves (Ceiba pentandra Gaertn) as antibacterial against Escherichia coli ATCC® 25922. Cottonwood leaves powder macerated with 70% ethanol, and then fractionated using n-hexane, ethyl acetate, and water solvents. Ethanolic extract, n-hexane, ethyl acetate, and water fractions were tested antibacterial activity using dilution method with concentrations of 50%, 25%, 12.5%, 6.25%, 3.12%, 1.56%, 0.78%, 0.39%, and 0.19%. The results showed that the ethyl acetate fraction, the fraction of water and ethanolic extract cottonwood leaves has antibacterial activity against Escherichia coli with minimum levels of suicide in a row is 12.5%, 50%, and 50%, whereas nhexane fraction did not provide minimum levels of killing up to concentration 50%. The results of this dilution method showed that the fraction of ethyl acetate has the most effective antibacterial activity against Escherichia coli ATCC 25922 Keywords: Ceiba pentandra Gaertn, Escherichia coli ATCC 25922, dilution, antibacterial, the fraction of n-hexane, ethyl acetat fraction, the fraction of wate

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Ceiba pentandra Gaertn, Escherichia coli ATCC 25922, dilution, antibacterial, the fraction of n-hexane, ethyl acetat fraction, the fraction of wate
Subjects:	R Medicine > RS Pharmacy and materia medica
Divisions:	Fakultas Farmasi > Prodi S1 Farmasi
Depositing User:	magdalena kartika ningsih
Date Deposited:	21 Feb 2020 03:42
Last Modified:	21 Feb 2020 03:42
URI:	http://repo.setiabudi.ac.id/id/eprint/2957

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