African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5229

Full Length Research Paper

Antibacterial in vitro assays of new -aminoethers and derivatives against Gram-negative and Gram-positive pathogenic bacteria

Natalia Duque
  • Natalia Duque
  • Research Group on Biology of Plants and Microorganisms, Department of Biology, Universidad del Valle, A. A. 25360, Cali, Colombia.
  • Google Scholar
Mary Carabali
  • Mary Carabali
  • Research Group on Biology of Plants and Microorganisms, Department of Biology, Universidad del Valle, A. A. 25360, Cali, Colombia.
  • Google Scholar
Neyla Benítez
  • Neyla Benítez
  • Research Group on Biology of Plants and Microorganisms, Department of Biology, Universidad del Valle, A. A. 25360, Cali, Colombia.
  • Google Scholar
Juan Castillo
  • Juan Castillo
  • Department of Chemistry, Universidad del Valle, A. A. 25360, Cali, Colombia
  • Google Scholar
Rodrigo Abonia
  • Rodrigo Abonia
  • Department of Chemistry, Universidad del Valle, A. A. 25360, Cali, Colombia
  • Google Scholar


  •  Received: 24 May 2015
  •  Accepted: 31 August 2015
  •  Published: 07 October 2015

Abstract

A growth inhibition effect against four Gram-negative (Pseudomonas aeruginosa, Salmonella typhimurium, Klebsiella pneumoniae and Escherichia coli) and three Gram-positive (Staphylococcus aureus, Bacillus cereus and Enterococcus faecalis) pathogenic bacteria was observed for 19 of 20 tested synthetic compounds (that is seven -aminoethers, nine -aminoalcohols and four allylamines). According to the results, the Gram-negative bacteria were the most susceptible strains toward the tested compounds. In general, the MICs of the active compounds were around 1000 ppm, while the MBCs were around 2000 ppm; however, the allylamine 8a was highlighted for its ability to inhibit E. faecalis at the lowest concentration found in this study (MIC = 125 ppm and MBC = 250 ppm).

Key words: Antibacterial activity, -aminoether derivatives, minimal inhibitory concentration, minimal bactericidal concentration, Lipinski’s rule.