Antimicrobial activity of selected essential oils against Streptococcus suis isolated from pigs.

ABSTRACT: The inhibitory potential by contact and vapor of basil, cinnamon, clove, peppermint, oregano, rosemary, common thyme, and red thyme essential oils (EOs) against 20 strains of Streptococcus suis was determined by the disk diffusion test. The broth microdilution method was used to determine the minimal inhibitory and minimal bactericidal concentration (MIC and MBC) of the four selected oils. Furthermore, the bactericidal power (ratio MBC/MIC) was calculated. The EOs with the major potential in the disk diffusion method were red thyme, common thyme, oregano, and cinnamon (∅ mean 16.5-34.2 mm), whereas cinnamon did not show vapor activity. In the microdilution test, all the EOs showed notable antimicrobial activity (MIC₉₀ and MBC₉₀ 312.5-625 μg·ml^-1 ) and a str

SUBMITTER: de Aguiar FC 

PROVIDER: S-EPMC6291787 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature