ISOLASI SENYAWA STEROID DARI KULIT BATANG TUMBUHAN BELIMBING WULUH (Averrhoa bilimbi Linn) DAN UJI AKTIVITAS ANTIBAKTERI

SIHOMBING, DEBORA FRANSISCA and Herlina, Herlina and Yusuf, Setiawati (2012) ISOLASI SENYAWA STEROID DARI KULIT BATANG TUMBUHAN BELIMBING WULUH (Averrhoa bilimbi Linn) DAN UJI AKTIVITAS ANTIBAKTERI. Undergraduate thesis, Sriwijaya University.

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Abstract

Steroid compound was isolated from n-hexane fraction of stem bark star fruit (Averrhoa bilimbi Linn). The extraction was done by maceration method then was separation and purification was conducted by chromatographic technique. Isolated compound was white needle crystals. The structure of this compound was determined with UV, IR, NMR 1D and DEPT. Based on spectral data analysis could be concluded that isolated compound was steroid sitosterol. This pure compound can to pursue the growth of Bacillus subtilis in extract and pure compound, however can’t inhibit the growth of Escherichia coli. Activity assay pure /Tsitosterol compound of Bacillus subtilis at a concentration of 10.000 ppm about 6,5 mm which is weak activity.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Averrhoa bilimbi Linn, B-sitosterol, Bacillus subtilis, Escherichia coli
Subjects:	Q Science > QD Chemistry > QD241-441 Organic chemistry
Divisions:	08-Faculty of Mathematics and Natural Science > 47201-Chemistry (S1)
Depositing User:	Mrs Furika Furika
Date Deposited:	15 May 2022 07:21
Last Modified:	15 May 2022 07:21
URI:	http://repository.unsri.ac.id/id/eprint/69942

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