Florida Agricultural Experiment Station Journal Series No. R-04439
Antibacterial Activity of Carvacrol, Citral, and Geraniol against Salmonella typhimurium in Culture Medium and on Fish Cubes
Version of Record online: 26 AUG 2006
Journal of Food Science
Volume 60, Issue 6, pages 1364–1368, November 1995
How to Cite
KIM, J.M., MARSHALL, MR., CORNELL, J.A., III, J.F. P. and WEI, C.I. (1995), Antibacterial Activity of Carvacrol, Citral, and Geraniol against Salmonella typhimurium in Culture Medium and on Fish Cubes. Journal of Food Science, 60: 1364–1368. doi: 10.1111/j.1365-2621.1995.tb04592.x
- Issue online: 26 AUG 2006
- Version of Record online: 26 AUG 2006
- Ms received 3/20/95; revised 6/20/95; accepted 7/8/95.
Carvacrol, citral and geraniol showed potent antibacterial activity against Salmonella typhimurium and its rifampicin-resistant (RifR) strain as determined in txyptic soy broth and by zone of inhibition on agar-based medium. Carvacrol had the most potent bactericidal activity, with minimum inhibitory and bactericidal concentrations (MIC and MBC) of 250 μg/mL for both tester strains. When tested at 0.5, 1.5 and 3.0% in 1% Tween 20 for bactericidal activity against RifR-S. typhimurium inoculated on fish cubes, carvacrol at 3.0% completely killed the inoculated bacteria, while geraniol killed most of the bacteria, and citral killed the least. Carvacrol and geranial showed potent antibacterial activity at 1.5%. Bactericidal activity became more evident as storage of fish cubes at 4°C lengthened. The comparable inhibition of these strains of Salmonella and species of Gram-negative bacteria by carvacrol and geraniol support their application as potential antibacterial agents in food systems.