Antibacterial Activity of Carvacrol, Citral, and Geraniol against <i>Salmonella typhimurium</i> in Culture Medium and on Fish Cubes
Jeong‐Mok Kim, Maurice R. Marshall, John A. Cornell, James F. Preston, Cheng–I Wei
Journal of Food Science
Abstract
ABSTRACT Carvacrol, citral and geraniol showed potent antibacterial activity against Salmonella typhimurium and its rifampicin‐resistant (Rif R ) 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 Rif R ‐ 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.
Extracted Claims
4 claims extracted from this paper into the knowledge graph
Carvacrol kills Rif R - S. typhimurium
“When tested at 0.5, 1.5 and 3.0% in 1% Tween 20 for bactericidal activity against Rif R - S. typhimurium inoculated on fish cubes, carvacrol at 3.0% completely killed the inoculated bacteria.”
Citral kills Rif R - S. typhimurium
“Carvacrol and geranial showed potent antibacterial activity at 1.5%.”
Geraniol kills Rif R - S. typhimurium
“Carvacrol and geranial showed potent antibacterial activity at 1.5%.”