ISOLASI DAN UJI ANTIBAKTERI ASAM LEMAK DARI FRAKSI POLAR EKSTRAK METANOL DAUN Gynura pseudochina (Lour) D.C

FARIDA, ULYA and Ferlinahayati, Ferlinahayati and Eliza, Eliza (2014) ISOLASI DAN UJI ANTIBAKTERI ASAM LEMAK DARI FRAKSI POLAR EKSTRAK METANOL DAUN Gynura pseudochina (Lour) D.C. Undergraduate thesis, Sriwijaya University.

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Abstract

Isolation of fatty acids ff om the polar fraction of methanol extract of Gynura pseudochina (Lour) D.C leaves had been carried out by maceration using methanol as the solvent and separation by a variety of chromatograpic techniques. Identification has been done of two isolated compounds using IR, !H-NMR and GC-MS spectroscopy. Compound 1 was obtained as a greenish solid (11.7 mg) and identified as a mixture of fatty acid derivatives with the major compound was methyl 14-methyl pentadecanoic. Compound 2 was obtained as a greenish solid (17.6 mg) and identified as a mixture of fatty acid derivatives with the major compound was hexadecanoic acid. The antibacterial activity showed that both of isolated compounds are bacteriostatic antibacterial against Escherichia coli and Bacillus subtilis.

Item Type:	Thesis (Undergraduate)
Uncontrolled Keywords:	Gynura pseudochina, methyl 14-methyl pentadecanoic, hexadecanoic acid, E. coli and B. subtilis.
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:	09 Jun 2022 04:45
Last Modified:	09 Jun 2022 04:45
URI:	http://repository.unsri.ac.id/id/eprint/71090

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