Journal
FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL
Volume 25, Issue 5, Pages 385-393Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/1082013219826817
Keywords
Escherichia coli biofilms; pepper-rosmarin; thyme; craveiro; peracetic acid; sodium hypochlorite
Categories
Funding
- Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior-Brasil [001]
- Sao Paulo Research Foundation [FAPESP 2014/20590-0]
Ask authors/readers for more resources
The efficacy of single and combined treatments based on plant essential oils was investigated against Escherichia coli strains persistent in food-processing facilities. Surface materials (stainless steel and polystyrene), disinfectants (peracetic acid and sodium hypochlorite), and conditions (25 celcius, frequency of sanitizing of 24 h) commonly present in the food industry were also used to reach a more realistic approach. Thyme and pepper-rosmarin oils were significantly (P < 0.05) very effective against planktonic cells and biofilms formed by strains E6 and E7, respectively, followed by peracetic acid. Meanwhile, craveiro oil showed an efficacy that is significantly (P < 0.05) higher than sodium hypochlorite. All these disinfectants except sodium hypochlorite were able to kill 99.99% of biofilm cells in the range of concentrations tested (0.1%-3% v/v). However, binary treatments were needed to decrease the doses of these essential oils significantly (P < 0.05) for the control of E. coli biofilms. The effectiveness of peracetic acid against E. coli biofilms was also improved by blending with these essential oils. In particular, blends of pepper-rosmarin with thyme or peracetic acid demonstrated a suitable effectiveness for the control of persistent E. coli present in food-related environments. The application of these treatments could also reduce the current environmental impact generated during food-processing sanitization.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available