Noviany, Noviany and Sialdian, Dicky and Setiawan, Andi and Irawan, Bambang and Nurul, Muhamad and Sutopo, Hadi (2021) Bioassay-Guided Separation Approach for Characterization of New Antibacterial Fractions from the Stem Roots Extracts of Archidendron jiringa. Journal of the Turkish Chemical Society Section A: Chemistry, 8 (2). pp. 391-402. ISSN e-ISSN 2149-0120


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Infectious diseases caused by bacteria has become a global health issue, especially antibacterial drug resistance. The most serious concern with antibacterial resistance is that some bacteria became resistant to almost all antibacterial drugs, which makes them less effective. Archidendron jiringa is one of the most potent medicinal plants to be developed as a new source of antibacterial components. In current study, based on the antibacterial assay-guided approach, the separation of bioactive fractions of A. jiringa stem roots was carried out through several stages including isolation, fractionation, and characterization. The stages of isolation of secondary metabolites were conducted by gradually extraction followed by fractionation using chromatographic methods. The antibacterial potential of extracts was evaluated by the disc diffusion and microdilution methods employing the resazurin assay against one Gram-negative resistant bacteria, Escherichia coli, and one Gram-positive bacteria, Bacillus subtilis. Among three extracts obtained, ethyl acetate and methanol extracts demonstrated the most significant antibacterial effects, while no antibacterial activity was showed on the hexane extract. The fractionation of ethyl acetate extract led to the isolation of the most bioactive fractions (E2815 and E2816) with the MIC’s values ranging of 12.5–25 µg/mL for both resistant bacteria. Due to less quantity, only the fraction E2816 was subjected to analysis by 1H-NMR spectroscopy. The results exhibited that the bioactive fraction was obtained as a mixture of at least three major constituents. However, the purification of the bioactive fraction is required, to further

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Kimia
Depositing User: Prof Andi Setiawan
Date Deposited: 03 Jun 2021 01:05
Last Modified: 03 Jun 2021 01:05

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