Antibacterial action of the essential oil from Cantinoa carpinifolia benth. Against Escherichia coli and Staphylococcus aureus strains

Abstract

Essential oils have been increasingly studied as preservatives for the food industries because of their biological properties. However, there are few studies on the antibacterial potential of the essential oil of the species Cantinoa carpinifolia Benth. Thus, the aim of this study was to extract and chemically characterize the essential oil from Cantinoa carpinifolia Benth. and evaluate its antibacterial potential against strains of Escherichia coli and Staphylococcus aureus. The essential oil was extracted by hydrodistillation and analyzed by gas chromatography using mass spectrometer and flame ionization detectors. The antibacterial potential against Escherichia coli and Staphylococcus aureus was evaluated by macrodilution, through cell viability tests, membrane permeability tests and electronic microscopy (SEM). The essential oil is composed principally of the α‐ thujone e β‐ thujone monoterpenes, and the minimum bactericidal and bacteriostatic concentrations of the essential oil were 6.25 and 0.39 μL mL−1 for E coli and S aureus, respectively. Bacterial strains were completely inactivated after 135 minutes (E coli) and 200 minutes (S aureus), respectively. Intracellular biological activity was observed for the essential oil because the harmful effects on both species of bacteria could be observed in the electromicrographs.

Bactericidal and antioxidant effects of essential oils from Satureja montana L., Myristica fragrans H. and Cymbopogon flexuosus

“…The terpenes present in this essential oil have been reported to be toxic to bacterial cells (Camargo et al . 2020).…”

“…According to Camargo et al . (2020), the chemical constituents in the essential oils might have caused damage to the cell wall of these micro‐organisms. Nazarro et al .…”

“…Despite having a higher MIC and MBC than the other essential oils investigated, a potential as an antimicrobial agent was also observed for the essential oil from M. fragrans. The terpenes present in this essential oil have been reported to be toxic to bacterial cells (Camargo et al 2020).…”

Antibacterial potential of essential oils against planktonic and sessile cells of Escherichia coli isolated from diarrhea cases in swine

“…In some studies, the activity of Eos is reported. As they are a complex mixture of substances, they are described as antimicrobial (Nikolic et al, 2014;Millezi et al, 2016;Dalla Costa et al, 2019;Camargo et al, 2020). In another conception, some studies emphasize that some isolated components are responsible for this activity (Chubukov et al, 2015;Lopez-Romero et al, 2015, Shi et al, 2016.…”

Antioxidant and Antitumoral Potential of Terpenes and Phenylpropanoids against MCF7, A549 and HT144 cancer cell lines

“…Essential oils are a complex mixture of terpenes and phenylpropanoids extracted from plants, which exhibit antioxidant, antibacterial, antifungal, antitumoral activities, among others (Iso, 2013;Wang et al, 2018;Camargo et al, 2019;Ferreira et al, 2019;Pavithra et al, 2019;Caetano et al, 2020). In recent years, with the increase in cancer cases, there has been a demand for products and medicines of natural origin that present lower long-term toxicity for living organisms (Yu et al, 2011;De Lima et al, 2014;Sokmen et al, 2020).…”