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Table 3 Antibacterial activity of the leaves and stem extracts of Calpurnia aurea.

From: Antibacterial and antioxidant properties of the methanol extracts of the leaves and stems of Calpurnia aurea

  

Minimum inhibitory concentration (mg/ml)

Bacterial species

Gram +/-

Leaves

Stem

Chloramphenicol μg/ml

Streptomycin μg/ml

Bacillus cereus

+

5.0

5.0

< 2

< 2

Staphylococcus epidermidis

+

5.0

na

< 2

< 2

Staphylococcus aureus

+

5.0

na

< 2

< 2

Micrococcus kristinae

+

5.0

na

< 2

< 2

Streptococcus pyogens

+

5.0

5.0

< 2

< 2

Escherichia coli

-

5.0

na

< 2

< 2

Salmonella pooni

-

5.0

na

< 2

< 2

Serratia marcescens

-

na

na

< 2

< 2

Pseudomonas aeruginosa

-

na

na

< 20

< 5

Klebsiella pneumonae

-

na

na

< 2

< 2

  1. na = not active.