Cited by 833Essential Oils and Antimicrobial ActivityAntimicrobial agents and applicationsInsect Pest Control Strategies

Factors that Interact with the antibacterial action of thyme essential oil and its active constituents

Juven, B.J., Kanner, J., Schved, F., Weisslowicz, H.·1994·Journal of Applied Bacteriology

Abstract

The viable counts of Salmonella typhimurium on nutrient agar (NA) decreased upon the addition of either the essential oil of thyme or its constituent thymol, especially under anaerobic conditions. Antagonistic effects of thymol against Staphylococcus aureus were also greater under anaerobic conditions. In contrast to the phenolic constituents of the oil, thymol and carvacrol, the chemically related terpenes p-cymene and gamma-terpinene had no antagonistic effects against Salm. typhimurium. The addition of Desferal to NA counteracted the antibacterial effects of both thyme oil and thymol. No support was obtained, however, for a possible role of iron in the oxygen-related antibacterial action of the thyme oil and thymol or for the observed effect of Desferal. In the presence of thymol, the viable counts of Salm. typhimurium obtained on a minimal medium (MM) were lower than those obtained on NA. Addition of bovine serum albumin (BSA) neutralized the antibacterial action of thymol. It is suggested that the effects of BSA or Desferal are due to their ability to bind phenolic compounds through their amino and hydroxylamine groups, respectively, thus preventing complexation reactions between the oil phenolic constituents and bacterial membrane proteins. This hypothesis is supported by the marked decrease in the viable counts of Salm. typhimurium caused by either thyme oil or thymol when the pH of the medium was changed from 6.5 to 5.5 or the concentration of Tween 80 in the medium was reduced.

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Crossref · 10.1111/j.1365-2672.1994.tb01661.x

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  • Thymol interacts with proteins, as demonstrated using a model system with bovine serum albumin.

    “Thymol also interacts with proteins, as demonstrated using a model system with bovine serum albumin [30].”

    From Effect of essential oils on pathogenic bacteria (2013) · cites this paper as [30]

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Authors
Juven, B. J., Kanner, J., Schved, F., & Weisslowicz, H.
Affiliations
Agricultural Research Organization (IL)
Corresponding author
Juven, B.J.
Venue
Journal of Applied Bacteriology
Publisher
Wiley
Published
1994-06
Volume
76
Issue
6
Pages
626-631
ISSN
0021-8847 (ISSN-L)
OpenAlex
W2016071671
Cited by
833
References
9
Citations by year
2026: 5 · 2025: 17 · 2024: 20 · 2023: 31 · 2022: 34 · 2021: 30 · 2020: 50 · 2019: 26 · 2018: 28 · 2017: 32 · 2016: 39 · 2015: 41 · 2014: 51 · 2013: 51 · 2012: 59
FWCI
4.88
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Applied Bacteriology (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
  • Physical Sciences › Chemistry › Organic Chemistry › Antimicrobial agents and applications
  • Life Sciences › Agricultural and Biological Sciences › Plant Science › Insect Pest Control Strategies
Keywords
thyme essential oil, thymol, carvacrol, antibacterial activity, Salmonella typhimurium, Staphylococcus aureus, anaerobic conditions, iron, bovine serum albumin, phenolic compounds, bacterial membrane proteins, p-cymene, γ-terpinene, Tween 80, pH effect, synergistic and antagonistic effects
MeSH terms
Cyclohexane Monoterpenes, Cymenes, Aerobiosis, Anaerobiosis, Deferoxamine, Food Preservation, Hydrogen-Ion Concentration, Oils, Volatile, Salmonella typhimurium, Staphylococcus aureus, Terpenes, Thymol, Magnoliopsida, Monoterpenes

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