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Table 2 Minimum microbicidal concentrations of the crude extract, fractions and compounds isolated from A. adianthifolia

From: Antioxidant and antimicrobial activities of ethyl acetate extract, fractions and compounds from stem bark of Albizia adianthifolia (Mimosoideae)

Name of microorganism Bacteria Minimum microbicidal concentrations (mg/ml)
  Crude extract F2 F3 F4 F5 B1 B2 1 2 Referencesa
Pseudomonas aeruginosa 0.39 na / 0.39 3.12 na na na 0.10 0.025
Proteus mirabilis 0.78 3.12 3.12 0.39 0.39 0.20 0.80 0.20 0.05 0.10
Klebsiella pneumoniae 1.56 na / 0.39 1.56 na na na 0.05 0.025
Shigella flexneri 0.39 6.25 6.25 0.39 0.39 0.10 0.20 0.20 0.05 0.05
Salmonella typhi 0.19 3.12 3.12 0.09 0.39 0.40 0.80 na 0.10 0.05
Escherichia coli 1.56 na / 1.56 1.56 na na na 0.05 0.025
Staphylococcus aureus 0.39 3.12 3.12 0.09 1.56 0.20 0.80 0.20 0.05 0.05
Enterococcus faecalis 0.78 3.12 3.12 0.09 0.39 0.40 0.20 0.40 0.10 0.012
Yeasts
Candida albicans ATCC 9002 3.12 na / 3.12 6.25 >0.80 0.80 0.40 0.025 0.001
Candida albicans ATCC 2091 6.25 na / 1.56 1.56 / / / 0.025 0.0015
Candida albicans ATCC 24433 1.56 3.12 3.12 1.56 3.12 / / / 0.05 0.001
Candida parapsilosis 6.25 na 1.56 3.12 6.25 / / 0.20 0.012 0.01
Candida tropicalis 6.25 na na 6.25 na >0.80 0.20 / 0.025 0.006
Candida krusei 3.12 na na 1.56 na / / 0.40 0.012 0.03
Candida glabbrata 3.12 na na 1.56 na / / / 0.05 0.012
Candida lusitaniae 0.78 3.12 3.12 0.19 0.78 >0.80 0.40 0.20 0.05 0.001
Cryptococcus neoformans 0.78 6.25 6.25 0.78 3.25 >0.80 0.80 0.20 0.006 0.001
  1. The results are the mean values of triplicate tests measured after 24–48 h incubation at 35 ° C; na: not active; /: not tested; agentamicin and nystatin were used as reference antibiotics for bacteria and yeasts respectively; B1: Oleic acid and n-hexadecanoid acid; B2: n-hexadecanoic acid, octadecanoic acid and docosanoic acid; 1: lupeol; 2: aurantiamide acetate.