Antibacterial Activity of Thujaoccidentalis,ThujaorientalisandChamaecyparisobtusa

Abstract

The antibacterial activity of three Cupressaceae plants (Thujaoccidentalis,ThujaorientalisandChamaecyparisobtusa) was tested against three bacteria using the agar diffusion method. The ether and ethylacetate fraction of crude methanol extract from the three plants showed potent antibacterial activity against the tested microorganisms. The result showed that Staphylococcus aureus revealed the most sensitivity among the tested bacteria. Thujaoccidentalisether fraction and Thujaorientalis hexane fraction exhibited the highest antibacterial activity against Staphylococcus aureus. E. coli was shown the highest MIC values compared to the other two tested bacteria, which indicates the lowest antibacterial activity against the bacterium. This study promises an interesting future for designing a potentially active antibacterial agent from the three Cupressaceae plants.

Tetraclinis articulata (Vahl) Mast. essential oil as a promising source of bioactive compounds with antimicrobial, antioxidant, anti-inflammatory and dermatoprotective properties: In vitro and in silico evidence

“…Natural products and/or EOs having a MIC of 2 mg/mL or less may be deemed to have strong antimicrobial activity method [ 51 ]. Our findings are in agreement with those reported in the literature [ [52] , [53] , [54] , [55] ], which showed the efficacy of this EO as a potent antimicrobial agent at minimum concentrations (ranged between 31.25 and 125.0 μg/mL). However, the reported MICs and MBCs values are slightly different from some studies; it was demonstrated that MICs of TAEO varied from 12.5 to 25 μg/mL and their MBCs ranged from 25 to 50 μg/mL using the agar diffusion test assay [ 56 ].…”