Bioprotection of Golden Delicious apples and Iceberg lettuce against foodborne bacterial pathogens by lactic acid bacteria

International Journal of Food Microbiology
Rosalia TriasEmilio Montesinos

Abstract

Lactic acid bacteria were isolated from fresh vegetables and fruit and its ability to inhibit the growth of foodborne human pathogens (Escherichia coli, Listeria monocytogenes, Pseudomonas aeruginosa, Salmonella typhimurium, and Staphylococcus aureus) was tested using the agar spot assay. Eighteen isolates showed a strong antagonistic capacity and were further characterised and identified using 16S rDNA sequencing and API 50CH. Most of them pertained to Leuconostoc spp. and Lactobacillus plantarum, and a few corresponded to Weissella spp. and Lactococcus lactis. Growth and efficacy of control of foodborne pathogen test bacteria by selected strains were tested in wounded Golden Delicious apples and Iceberg lettuce leaf cuts. The strains grew on the substrates and did not cause negative effects on the general aspect of tissues of apple or lettuce. Treatment of apple wounds and lettuce cuts with the antagonistic strains reduced the cell count of S. typhimurium and E .coli by 1 to 2 log cfu/wound or g, whereas the growth of L. monocytogenes was completely inhibited. Results support the potential use of lactic acid bacteria as bioprotective agents against foodborne human pathogens in ready-to-eat fresh fruit and vegetable products.

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Citations

Oct 2, 2013·Journal of Food Science and Technology·Seema Garcha, Navdeep Kaur Natt
May 23, 2012·Foodborne Pathogens and Disease·Karin HoelzerSherri Dennis
Feb 18, 2014·Applied Biochemistry and Biotechnology·Kontham Kulangara VarshaKesavan Madhavan Nampoothiri
Aug 6, 2014·BioMed Research International·Pasquale RussoGiuseppe Spano
Aug 2, 2012·Food Microbiology·Amin N Olaimat, Richard A Holley
Feb 13, 2010·Current Opinion in Biotechnology·Antonio GálvezRosario Lucas
Mar 3, 2009·Journal of Microbiological Methods·Christine M CareyStacey Thompson
Jul 27, 2015·International Journal of Food Microbiology·M OliveiraI Viñas
Jul 16, 2008·International Journal of Food Microbiology·Rosalia TriasLluís Bañeras
Jul 12, 2018·Critical Reviews in Food Science and Nutrition·Marcus SchmidtElke K Arendt
Feb 23, 2019·Journal of Food Protection·Zhenhong GaoTian Ding
Aug 8, 2020·Frontiers in Microbiology·Marie LegeinSarah Lebeer
Oct 8, 2020·Foods·José Rafael Linares-MoralesGuadalupe Virginia Nevárez-Moorillón
Jun 3, 2021·International Journal of Environmental Research and Public Health·Joana BarbosaPaula Teixeira
Jul 1, 2021·Comprehensive Reviews in Food Science and Food Safety·Lina Sheng, Mei-Jun Zhu

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