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Table 3 Antimicrobial activity of the extracts

From: Sources for developing new medicinal products: biochemical investigations on alcoholic extracts obtained from aerial parts of some Romanian Amaryllidaceae species

Samples Diameter of inhibition zone (mm)
S. enteritidis E. coli L. monocytogenes S. aureus C. albicans A. brasiliensis
N. pseudo- narcissus 6 ± 0.00a 6 ± 0.00a 12 ± 1.00a 14 ± 1.00b 18 ± 0.00d 16 ± 0.00f
N. poeticus 6 ± 0.00a 6 ± 0.50a 12 ± 0.00a 16 ± 2.00c 28 ± 0.50e 22 ± 0.00g
G. nivalis 6 ± 0.00a 6 ± 0.00a 10 ± 0.50a 18 ± 2.00c 6 ± 0.50d 16 ± 2.00g
L. vernum 6 ± 0.00a 6 ± 0.00a 10 ± 1.00a 22 ± 1.00c 6 ± 0.00d 6 ± 0.00f
Gentamicin 19 ± 1.00 18 ± 1.06 22 ± 0.50 18 ± 0.00
Fluconazole 25 ± 1.00
Amphotericin B 21 ± 0.00
  1. Notes: The values represent the average of three determinations±SD. ap < 0.001 (all sample versus Gentamicin); bp < 0.05 (Npn versus Gentamicin); cp > 0.05 (Np, Gn, Lv versus Gentamicin)
  2. bp < 0.05 (Npn versus Gentamicin)
  3. cp > 0.05 (Np, Gn, Lv versus Gentamicin)
  4. dp < 0.001 (Npn, Gn, Lv versus Fluconazole)
  5. ep < 0.05 (Np versus Fluconazole)
  6. fp < 0.001 (Npn, Lv versus Amphotericin B)
  7. gp < 0.05 (Np, Gn versus Amphotericin B)
  8. Gentamicin (10 μg/disk), Fluconazole (25 μg/disk), Amphotericin B (10 μg/disk),) were used as positive controls