Table 3.

Mentha spp. activity against bacterial pathogens tested in vitro.

Plant Species	Bacterial Strain	References
Mentha × piperita L.	Gram negative:  Proteobacteria   Escherichia coli   Klebsiella pneumoniae   Proteus mirabilis, P. vulgaris   Pseudomonas aeruginosa   Salmonella enteritidis, S. paratyphi A and B, S. pullorum,   S. typhi, S. typhimurium   Shigella dysenteriae   Yersinia enterocolitica Gram positive:  Firmicutes   Bacillus cereus, B. subtilis   Listeria monocytogenes   Staphylococcus aureus   Streptococcus pyogenes	[156,158,163,164,165,166,167,168,169]
Mentha suaveolens L.	Gram negative:  Proteobacteria   Escherichia coli   Klebsiella pneumoniae   Pseudomonas aeruginosa   Proteus mirabilis Gram positive:  Firmicutes   Bacillus anthracis   Staphylococcus aureus	[125]
Mentha spicata L.	Gram negative:  Proteobacteria   Escherichia coli   Klebsiella pneumoniae   Proteus mirabilis   Pseudomonas aeruginosa   Salmonella typhimurium   Vibrio spp. Gram positive:  Firmicutes   Bacillus cereus, B. subtilis   Listeria monocytogenes   Staphylococcus aureus	[118,170,171]
Mentha × rotundifolia (L.) Huds.	Gram negative:  Proteobacteria   Escherichia coli   Salmonella typhimurium Gram positive:  Firmicutes   Bacillus cereus   Staphylococcus aureus	[172]
Mentha arvensis L.	Gram negative:  Proteobacteria   Escherichia coli   Klebsiella pneumoniae   Pseudomonas aeruginosa   Shigella flexneri Gram positive:  Firmicutes   Staphylococcus aureus	[173]
Mentha longifolia L.	Gram negative:  Proteobacteria   Escherichia coli   Pseudomonas aeruginosa   Salmonella typhimurium Gram positive:  Firmicutes   Bacillus cereus   Listeria monocytogenes   Staphylococcus aureus   Streptococcus pyogenes	[171,174]
Mentha pulegium L.	Gram negative:  Proteobacteria   Escherichia coli   Pseudomonas aeruginosa   Salmonella typhimurium Gram positive:  Firmicutes   Bacillus cereus   Staphylococcus aureus	[175,176]