Potential synergistic antimicrobial efficiency of binary combinations of essential oils againstBacillus cereusandPaenibacillus amylolyticus-Part A
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TextSeries: ; Microbial Pathogenesis, 141, p.104008, 2020Contained works: - Ayari, Samia
- Shankar, Shiv
- Follett, Peter
- Hossain, Farah
- Lacroix, Monique
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The checkerboard method was used to study the potential interactions between eight essential oils (Basil, Cinnamon, Eucalyptus, Mandarin, Oregano, Peppermint, Tea tree, and Thyme)when used as antibacterial agents againstBacillus cereusLSPQ 2872 andPaenibacillus amylolyticusATCC 9995. The minimum inhibitory concentration (MIC)of each essential oil (EO)and the fractional inhibitory concentration (FIC)index for the binary combinations of essential oils (EOs)were determined. According to FIC index values, some of the compound binary combinations showed an additive effect; however, Thyme/Tea tree and Cinnamon/Thyme EOs exhibited a synergistic effect againstP. amylolyticusandB. cereus,respectively. Cinnamon/Thyme EOs mixture exhibited no interactive effect against P. amylolyticus, but a synergistic effect against B. cereus. The combination of Oregano/Thyme EOs displayed the best antibacterial activity and showed a synergistic effect againstB. cereus andP. amylolyticusbacteria. The Oregano/Thyme EOs mixture has potential application in food preservation to reduce the contamination ofB. cereusandP. amylolyticus
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