Skip to main content

Advertisement

Table 1 Minimal bactericidal (MBC) and fungicidal (MFC) concentration (ppm) of compounds tested against selected microorganisms

From: Antimicrobial structure activity relationship of five anthraquinones of emodine type isolated from Vismia laurentii

  Compounds
A B C D E N G
Yeast
Candida albicans pH 5 150 600 600 1200 550 25  
pH 6 300 600 1200 1200 1100 50  
pH 7 1200 1200 / 1200 1100 25  
Gram-positive bacteria
Listeria monocytogenes pH 5 600 / / / /   25
pH 6 600 / / / /   6.25
pH 7 1200 1200 / / /   25
Staphylococcus aureus pH 5 600 1200 1200 / 1100   75
pH 6 600 / 1200 / /   ˂ 3.12
pH 7 1200 / 75 150 /   ˂ 3.12
Bacillus cereus pH 5 300 / / / /   ˂ 3.12
pH 6 600 / / / /   ˂ 3.12
pH 7 600 / / 300 /   ˂ 3.12
Gram-negative bacteria
Salmonella enteritidis pH 5 / / 1200 / /   600
pH 6 / / / / /   600
pH 7 / / / / /   ˂ 3.12
Escherichia coli pH 5 / / 1200 / /   12.50
pH 6 / / / / /   6.25
pH 7 / / / / /   25
  1. A = 3-geranyloxyemodine, B = vismiaquinone B, C = 3-methoxyemodine, D = 2-isoprenyl-3-methoxyemodine, E = bivismiaquinone, G = gentamicin (antibacterial), N = nystatin (antifungicidal), <= inferior,/= not active at concentration ≤ 1200 ppm