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Table 1 Average diameter of inhibition zones (mm) produced by C. alata crude extracts tested against Staphylococcus aureus

From: In vitro antimicrobial efficacy of Cassia alata (Linn.) leaves, stem, and root extracts against cellulitis causative agent Staphylococcus aureus

Extraction

Parts

Solvent

Average diameter of inhibition zone (mm)

10 µg µL−1

2 µg µL−1

1.5 µg µL−1

1 µg µL−1

Maceration

Stem parts

n-Hexane

11.7 ± 0.58

0.0

0.0

0.0

Ethyl acetate

13.0 ± 0.00

9.3 ± 0.60

9.7 ± 0.60

9.0 ± 1.00

Ethanol

10.7 ± 0.60

8.7 ± 0.60

8.3 ± 0.60

0.0

dH2O

0.0

0.0

0.0

0.0

Leaves

n-Hexane

10.3 ± 0.60

0.0

0.0

0.0

Ethyl acetate

13.3 ± 0.60

9.0 ± 0.00

0.0

0.0

Ethanol

13.3 ± 0.60

10.3 ± 0.60

0.0

0.0

dH2O

0.0

0.0

0.0

0.0

Root

n-Hexane

0.0

0.0

0.0

0.0

Ethyl acetate

13.7 ± 0.60

9.3 ± 0.60

9.3 ± 0.60

9.7 ± 0.60

Ethanol

9.3 ± 0.60

8.7 ± 0.60

9.3 ± 0.60

0.0

dH2O

0.0

0.0

0.0

0.0

Soxhlet extraction

Stem parts

n-Hexane

10.3 ± 0.60

10.0 ± 0.00

0.0

0.0

Ethyl acetate

13.3 ± 0.60

12.0 ± 0.00

10.0 ± 0.00

0.0

Ethanol

8.3 ± 0.60

0.0

0.0

0.0

dH2O

0.0

0.0

0.0

0.0

Leaves

n-Hexane

0.0

0.0

0.0

0.0

Ethyl acetate

14.7 ± 0.60

0.0

0.0

0.0

Ethanol

11.3 ± 0.50

0.0

0.0

0.0

dH2O

10.3 ± 0.60

0.0

0.0

0.0

Root

n-Hexane

11.7 ± 1.20

0.0

0.0

0.0

Ethyl acetate

15.3 ± 0.60

12.7 ± 0.60

10.7 ± 0.60

9.0 ± 0.00

Ethanol

11.7 ± 0.60

9.3 ± 0.60

9.3 ± 0.60

0.0

dH2O

0.0

0.0

0.0

0.0

Positive control- Rifampin antibiotic disc (5 µg)

26.0 ± 1.00

Positive control- Gentamicin antibiotic disc (10 µg)

22.0 ± 0.00

Positive control- Streptomycin antibiotic disc (10 µg)

14.5 ± 0.50

Negative control-100% (v/v) DMSO solution (50 µL)

0.0