Journal
INDONESIAN JOURNAL OF CHEMISTRY
Volume 10, Issue 2, Pages 219-225Publisher
GADJAH MADA UNIV, DEPT CHEMISTRY
DOI: 10.22146/ijc.21464
Keywords
antibiotic; actinomycetes; purification; structure elucidation
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Funding
- IDB (Islamic Development Bank)
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Purification and structure elucidation of antibiotic produced by marine actinomycetes (Streptomyces sp A11) was conducted. Production of antibiotic was carried out by liquid fermentation using yeast and peptone medium for 5 days fermentation. Purification of antibiotic was carried out by silica gel 60 (Merck, 0.063-0.200 mm) column chromatography and preparative HPLC. Structure elucidation was carried out using ESI-MS, H-1 NMR, C-13 NMR, DEPT C-13 NMR, and FTIR. This antibiotic was identified as cyclo (tyrosyl-prolyl) /(C14H16N2O3). This antibiotic had biological activity to Escherichia coli ATCC 25922, Staphylococcus aureus ATCC25923, Bacillus subtilis ATCC 66923, Pseudomonas aeruginosa ATCC27853, and produced by extracellular secretion.
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