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Table 3 Minimal microbicdal concentration (μg/ml) of the crude extracts and reference antibiotics

From: Antimicrobial activity of selected South African medicinal plants

Tested samples

Tested microorganisms*

 

Bacteria

Fungi

Mycobacteria

 

βL+EC

CRCF

ARKP

CRPA

MRSA

C. albicans

M. audouinii

M. smegmatis

A. oppositifolia leaves

>2500

2500

1250

1250

625

625

nd

>2500

A. oppositifolia stem

>2500

nd

nd

1250

625

625

1250

>2500

A. karoo leaves

312.50

625

312.50

1250

312.50

312.50

1250

>2500

A. karoo stem

625

625

312.50

312.50

156.25

312.50

312.50

>2500

B. latifolia leaves

>2500

>2500

nd

1250

2500

1250

625

>2500

C. dentata stem bark

312.50

625

312.50

312.50

312.50

312.50

>2500

>2500

C. dentate leaves

>2500

2500

625

1250

156.25

156.25

nd

>2500

E. lasianthum leaves

2500

625

312.50

1250

625

625

625

>2500

E. lasianthum stem

625

625

625

312.50

78.12

312.50

625

>2500

K. vesitoria aerial part

>2500

>2500

nd

1250

nd

625

312.50

2500

P. obligum leaves

1250

1250

1250

625

1250

312.50

nd

>2500

P. obligun stem

1250

nd

nd

625

312.50

625

625

2500

P. obligun bark

312.50

nd

nd

nd

625

312.50

312.50

>2500

S. burchellii leaves

625

1250

312.50

1250

625

625

312.50

>2500

S. burchellii bark

312.50

625

312.50

312.50

312.50

312.50

312.50

>2500

S. hyacithoides leaf

1250

2500

2500

1250

nd

625

625

>2500

S. hyacithoides Rhizoma

1250

1250

1250

nd

nd

625

625

>2500

S. fricana aerial part

78.12

625

625

312.50

78.12

312.50

78.12

2500

T. capensis aerial part

2500

nd

1250

1250

1250

1250

625

>2500

Z. aethiopica leaves and stem

2500

nd

nd

2500

nd

1250

625

>2500

Gentamicin

19.53

19.53

39.06

39.06

19.53

nt

nt

nt

Nystatin

nt

nt

nt

nt

nt

39.06

39.06

nt

Ciprofloxacin

nt

nt

nt

nt

nt

nt

nt

0.3

  1. *The tested microorganisms are MRSA (Methicillin-resistant Staphylococcus aureus), βL+EC (β-lactamase positive Escherichia coli), ARKP (Ampicillin-resistant Klebsiella pneumoniae), CRPA (Carbenicillin-resistant Pseudomonas aeruginosa), CRCF (Chloramphenicol-resistant Citrobacter), C. albicans (Candida albicans), M. audouinii (Microsporum audouinii); (nt): not tested; (nd): not determined as the MIC was >2500 μg/ml.