Journal
FOOD SCIENCE AND BIOTECHNOLOGY
Volume 28, Issue 3, Pages 633-639Publisher
KOREAN SOCIETY FOOD SCIENCE & TECHNOLOGY-KOSFOST
DOI: 10.1007/s10068-018-0502-2
Keywords
Antibiofilm; Cymbopogon nardus; Essential oil; Food; Geraniol
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Funding
- Coordination of Improvement of Higher Education Personnel -CAPES
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Medicinal plants with antimicrobial action have been investigated for uses against biofilms, among which, Cymbopogon nardus, citronella, stands out as a promising species. The present study aims to evaluate the antimicrobial and antibiofilm action of the essential oil of C. nardus (EOCN) and geraniol on Gram-negative and positive bacteria from the determination of minimum inhibitory concentration (MIC) and minimum bactericidal concentration and inhibition of biofilms. In the results, the EOCN produced a 41mm halo on S. aureus, which was susceptible with MIC values of 0.5 and 0.25mg/mL for the EOCN and geraniol respectively, both with bactericidal effect. The antibiofilm action was confirmed, the EOCN and geraniol reduced the biofilm biomass of S. aureus up to 100% between 0.5 and 4mg/mL concentrations. The reduction of cell viability was 0.25 and 1mg/mL, of EOCN and geraniol, respectively. EOCN and geraniol were shown to be promising antibiotic against S. aureus.
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