Rosmarinus officinalis L. Essential Oil and Its Majority Compound 1,8-Cineole at Sublethal Amounts Induce No Direct and Cross Protection in Staphylococcus aureus ATCC 6538
| Autor: | Vanessa Gonçalves Honório, Marciane Magnani, Isabelle da Silva Luz, Evandro Leite de Souza, Nelson Justino Gomes Neto, Adassa Gama Tavares |
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| Rok vydání: | 2012 |
| Předmět: |
Staphylococcus aureus
Time Factors Microbial Sensitivity Tests Biology medicine.disease_cause Applied Microbiology and Biotechnology Microbiology Rosmarinus law.invention Minimum inhibitory concentration chemistry.chemical_compound Anti-Infective Agents law Oils Volatile medicine Plant Oils Food microbiology Essential oil Eucalyptol Microbial Viability Cyclohexanols biology.organism_classification Lactic acid chemistry Officinalis Food Microbiology Monoterpenes Animal Science and Zoology Food Science |
| Zdroj: | Foodborne Pathogens and Disease. 9:1071-1076 |
| ISSN: | 1556-7125 1535-3141 |
| DOI: | 10.1089/fpd.2012.1258 |
| Popis: | In this study, the inhibitory efficacy of Rosmarinus officinalis essential L. (ROEO) and 1,8-cineole (CIN) in inhibiting the growth and survival of Staphylococcus aureus ATCC 6538 and the induction of direct and bacterial cross protection (lactic acid pH 5.2; NaCl 100 g/L; high temperature 45°C) were evaluated following exposure to sublethal and increasing amounts of these treatments in meat broth. All of the concentrations of the ROEO and CIN examined in this study (minimum inhibitory concentration [MIC], 1/2 MIC, and 1/4 MIC) inhibited the viability of S. aureus throughout the 120 min of exposure. The overnight exposure of S. aureus to sublethal amounts of both ROEO or CIN in meat broth did not result in direct or cross protection. Cells progressively subcultured (24-h cycles) in meat broth with increasing amounts of ROEO or CIN showed no increased direct tolerance. These results reveal the antimicrobial efficacy of ROEO and CIN for use in food conservation systems as anti-S. aureus compounds given their efficacy at inhibiting bacterial growth, in addition to their lack of induction for the development of homologous and heterologous resistance. |
| Databáze: | OpenAIRE |
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