Introduction:

Monoterpenes, which are the main constituents of most essential oils, comprise a wide range of natural and/or synthetic substances that have already exhibited diverse biological activities.

Objective:

The present study aimed to evaluate the antibacterial activity of monoterpene (R)-(+)-citronellal against Pseudomonas aeruginosa strains.

Methodology:

The serial dilution technique was used to determine the Minimum Inhibitory Concentration (MIC) and the Minimal Bactericidal Concentration (CBM) of (R)-(+)-citronellal was also determined.

Results:

The results obtained for the tested monoterpene were MIC50 equal to 512 µg/mL, thus presenting a strong antibacterial effect and CBM ranging from 512 to 1024 µg/mL, thus being considered bactericidal.

Conclusion :

Thus, it is concluded that the monoterpene (R)-(+)-citronellal, due to its antimicrobial potential, can be considered very important for the treatment of several diseases caused by Pseudomonas aeruginosa.