01/07/2018 · The keywords used to search were: antibacterial, antimicrobial, mechanisms, cinnamon, Cinnamomum, transcinnamaldeyde, synergism, and multidrugresistance. 3. Mechanisms of antibacterial action. Alterations in cell membrane and its lipid profile. Usually, Gramnegative bacteria are more resistant to plant extracts, oils, and their ...