Optimization of essential oil-based natural disinfectants against Listeria monocytogenes and Escherichia coli biofilms formed on polypropylene surfaces

Anita Vidács, Erika Kerekes, R. Rajkó, Tamás Petkovits, Naiyf S. Alharbi, Jamal M. Khaled, C. Vágvölgyi, Judit Krisch

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

Polypropylene is frequently used in food contact applications, mainly for packaging or in food boxes to be used in microwave ovens. In this study, the biofilm elimination effect of selected essential oils (cinnamon, marjoram, and thyme) was evaluated against immature and mature biofilms of Escherichia coli and Listeria monocytogenes formed on polypropylene (PP) surfaces. The Response Surface Box-Behnken Design (BBD) with three variables and 17 assays was used to optimize concentration of essential oils (EOs) (1.1–15.8 mg/mL), disinfection time (10 min), and level of pH (4.5‐7.5) in the EO-based disinfection solutions. The optimized disinfectants were used against 24-, and 168-hour old biofilms formed on PP surfaces, and were successful in elimination of immature and mature biofilms, except cinnamon EO for E. coli where biofilms were destroyed only partially. The disinfectant effect of the EO-based natural solutions was in most cases equivalent or better compared to the per-acetic acid-based chemical sanitizer used in food industry or to sodium hypochlorite.

Original languageEnglish
Pages (from-to)257-262
Number of pages6
JournalJournal of Molecular Liquids
Volume255
DOIs
Publication statusPublished - Apr 1 2018

Fingerprint

antiseptics
Listeria
Disinfectants
Essential oils
biofilms
Polypropylenes
Biofilms
Volatile Oils
Escherichia
polypropylene
Escherichia coli
oils
optimization
food
Disinfection
boxes
elimination
Microwave ovens
Sodium Hypochlorite
ovens

Keywords

  • Biofilm
  • Box-Behnken design
  • Disinfectant
  • Essential oils
  • Polypropylene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Spectroscopy
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Optimization of essential oil-based natural disinfectants against Listeria monocytogenes and Escherichia coli biofilms formed on polypropylene surfaces. / Vidács, Anita; Kerekes, Erika; Rajkó, R.; Petkovits, Tamás; Alharbi, Naiyf S.; Khaled, Jamal M.; Vágvölgyi, C.; Krisch, Judit.

In: Journal of Molecular Liquids, Vol. 255, 01.04.2018, p. 257-262.

Research output: Contribution to journalArticle

Vidács, Anita ; Kerekes, Erika ; Rajkó, R. ; Petkovits, Tamás ; Alharbi, Naiyf S. ; Khaled, Jamal M. ; Vágvölgyi, C. ; Krisch, Judit. / Optimization of essential oil-based natural disinfectants against Listeria monocytogenes and Escherichia coli biofilms formed on polypropylene surfaces. In: Journal of Molecular Liquids. 2018 ; Vol. 255. pp. 257-262.
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