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Table 1 Growth inhibition of microorganisms by R. vulgaris extracts

From: Evaluation of the antimicrobial activity and safety of Rhus vulgaris (Anacardiaceae) extracts

Microorganism Plant Plant part Solvent Average Zone of inhibition
± Std. dev. of duplicates (mm)
p-values
MRSA R. vulgaris Stem bark MeOH 12.00 ± 0.00 < 0.005
MRSA R. vulgaris Stem bark MeOH:DCM 10.00 ± 0.00 < 0.005
MRSA R. vulgaris Stem bark Aqueous 7.00 ± 0.00 0.039
MRSA Control    6.00 ± 0.00  
S. aureus R. vulgaris Stem bark MeOH 19.50 ± 0.71 0.722
S. aureus R. vulgaris Stem bark MeOH:DCM 17.00 ± 2.83 0.069
S. aureus R. vulgaris Stem bark Aqueous 7.00 ± 0.00 < 0.005
S. aureus Control    24.19 ± 3.60  
S. mutans R. vulgaris Stem bark MeOH 10.00 ± 0.00 < 0.005
S. mutans R. vulgaris Stem bark MeOH:DCM 10.00 ± 0.00 < 0.005
S. mutans R. vulgaris Stem bark Aqueous 9.00 ± 0.00 < 0.005
S. mutans Control    22.13 ± 3.44  
C. albicans R. vulgaris Stem bark MeOH 6.50 ± 0.00 < 0.005
C. albicans R. vulgaris Stem bark MeOH:DCM 6.00 ± 0.00 < 0.005
C. albicans R. vulgaris Stem bark Aqueous 6.50 ± 0.00 < 0.005
C. albicans Control    38.13 ± 4.86  
  1. MRSA Methicillin-resistant Staphylococcus aureus, S. aureus: Staphylococcus aureus, C. albicans: Candida albicans, S. mutans: Streptococcus mutans, R. vulgaris: Rhus vulgaris, MeOH Methanol, MeOH:DCM Methanol:Dichloromethane. The positive control for MRSA, S. aureus and S. mutans was sulfamethoxazole/trimethoprim (23.7:1.25 μg) standard antimicrobial discs. Plant extract concentration was 100 mg/ml. The positive control for C. albicans was fluconazole at a concentration of 2 mg/ml. p-values of ≤0.05 demonstrate statistical significance