BioMed Research International / 2015 / Article / Tab 2

Research Article

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

Table 2

Minimum inhibitory concentration (MIC, g/mL) of ethanol plant extracts and reference antibiotics against bacteria.

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

Acorus calamus 3125125006250625031256250
Adhatoda vasica 62501250012500
Artemisia vulgaris 31256250625062506250312562503125391
Asparagus racemosus 12500625012500391
Centella asiatica 125006250312512500
Cinnamomum camphora 6250625078131253125312549
Curculigo orchioides 125006250125006250125001250049
Curcuma longa 6250156262509831251956250
Cuscuta reflexa 1250015626250125006250625012500125006250781
Cynodon dactylon 156278178115626250781156262503913911957813125
Drymaria cordata 625012500625062506250125006250312512500
Eupatorium adenophorum 12500125006250312562503125312531256250
Ginkgo biloba 12500125006250625012500
Psidium guajava 125003125625062507813125625031256250312562503125
Rauwolfia serpentina 1250012500625031256250625062506250625031253125
Swertia chirayita 125001250031251250062506250
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. Gentamicin and vancomycin were used as reference drugs for Gram-negative bacteria and Gram-positive bacteria, respectively.
a and b = Reference drugs used for the Gram-negative and Gram-positive bacteria, respectively.

Article of the Year Award: Outstanding research contributions of 2020, as selected by our Chief Editors. Read the winning articles.