BioMed Research International / 2015 / Article / Tab 3

Research Article

Evaluation of Antibacterial Activity of Some Traditionally Used Medicinal Plants against Human Pathogenic Bacteria

Table 3

MIC (g/mL) of subfraction of ethanol extracts of Cynodon dactylon and reference antibiotics against bacteria.

Solvent systemGram-negative bacteriaGram-positive bacteria
ESBL-ECEc Vc Cf MDR-STEcl IRPAStm Se ESBL-KPMRSAEf Sa Sp Sal

n-Hexane500
Chloroform250631255006331
n-Butanol25012550063
Water500
Gentamicina64<1<132<11664<1<164
Vancomicinb<1<1<1<1<1

“—”: not tested because plant extracts did not show the inhibitory effect by agar-well diffusion method or not suitable to test (for reference drug); Cf: Citrobacter freundii; Ecl: Enterobacter cloacae; Ef: Enterococcus faecalis; Ec: Escherichia coli (25922); ESBL-EC: extended-spectrum β-lactamase-producing Escherichia coli; ESBL-KP: extended-spectrum β-lactamase-producing-Klebsiella pneumoniae; IRPA: imipenem-resistant Pseudomonas aeruginosa; Sa: Staphylococcus aureus (ATCC 25923); MRSA: methicillin-resistant Staphylococcus aureus; Sal: Streptococcus agalactiae; Se: Salmonella enteritidis; Sp: Streptococcus pyogenes; MDR-ST: multidrug-resistant Salmonella typhi; Stm: Salmonella typhimurium; Vc: Vibrio cholerae; a and b: gentamicin and vancomycin were used as reference drugs for Gram-negative bacteria and Gram-positive bacteria, respectively.

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