Cyclo (tyrosyl-prolyl) produced by streptomyces sp.: bioactivity and molecular structure elucidation

Rofiq, Sunaryanto and Bambang, Marwoto and Liesbetini, Hartoto and Zainal, Alim Mas'ud and Tun, Tedja Irawadi (2011) Cyclo (tyrosyl-prolyl) produced by streptomyces sp.: bioactivity and molecular structure elucidation. Microbiology Indonesia, 5 (2). pp. 81-87. ISSN 1978-3477; eISSN: 2087-8575

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Determination of bioactivity by minimum inhibitory concentration (MIC) methods and molecular structure identification of antibiotic produced by Streptomyces sp. have been carried out. The antibiotic was produced by liquid culture using Streptomyces sp. isolate. Purification of antibiotic was carried out by silica gel column chromatography and preparative HPLC. Molecular structure identification was carried out using ESI-MS, ¹H NMR, ¹³C NMR, and ¹³C DEPT NMR. Pure antibiotic showed inhibition activity to Gram-negative and Gram-positive bacteria. MIC to Escherichia coli ATCC 25922, Pseudomonas aeruginosa ATCC27853 , Staphylococcus aureus ATCC25923, and Bacillus subtilis ATCC66923 were 27.0, 68.7, 80.2, and 73.7 μg mL⁻¹ , respectively. Identification using ESI-MS showed that the molecular weight of this antibiotic was 260 g mol⁻¹ , and molecular formula was C14H16N2O3 . Elucidation of molecular structure using ¹HNMR, ¹³C NMR, and ¹³C DEPT NMRshowed that antibiotic was cyclo(tyrosyl-prolyl).

Item Type: Article
Additional Information: DDC'23: 547.5
Uncontrolled Keywords: Antibiotik, Siklo (tirosil-prolil), konsentrasi hambatan, bioaktivitas
Subjects: Medicine & Biology > Biochemistry
Divisions: OR_Pertanian_dan_Pangan > Teknologi_dan_Proses_Pangan
Depositing User: Rasty -
Date Deposited: 03 Nov 2022 03:48
Last Modified: 16 Dec 2022 11:30

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