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Assessment of the tolerance of Listeria innocua isolates recovered from meat products and food-processing environments in Poland to benzalkonium chloride

Version 1.0

Zawiasa, Anna; Olejnik-Schmidt, Agnieszka, 2026, "Assessment of the tolerance of Listeria innocua isolates recovered from meat products and food-processing environments in Poland to benzalkonium chloride", https://doi.org/10.18150/8DRV65, RepOD, V1

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Description

[ENG:]

14 files containing experimental data were deposited in the database. These include:

  • a file with data on the isolates, their origin, tolerance profiles, and the presence of resistance genes (Data_on_isolates_tolerance_profiles.csv);
  • three files containing images of microbiological cultures showing growth inhibition of isolates on BHI medium for three technical replicates (Images_of_growth_inhibition_of_isolates_BHI_1st_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_BHI_2nd_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_BHI_3rd_technical_replicate.zip);
  • and three files containing images of microbiological cultures showing growth inhibition of isolates on M-H medium supplemented with 1.2% sheep blood for three technical replicates (Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_1st_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_2nd_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_3rd_technical_replicate.zip).

In addition, the dataset includes four sets of files presenting the results of PCR agarose gel electrophoresis for individual resistance genes: Electrophoresis_results_for_the_qacE_gene.zip, Electrophoresis_results_for_qacF_gene.zip, Electrophoresis_results_for_the_qacG_gene.zip, Electrophoresis_results_for_the_qacH_gene.zip, Electrophoresis_results_for_the_qacJ_gene.zip, Electrophoresis_results_for_the_brcABC_gene.zip i Electrophoresis_results_for_the_ermC_gene.zip.

The files were saved in .csv, .jpg, and .png formats and were prepared using Microsoft Word and Microsoft Excel. The data present the results of studies on the analysis of tolerance to benzalkonium chloride, a disinfectant widely used in the food industry, in 51 Listeria innocua bacterial isolates originating from raw and processed meat products as well as from meat-processing plant environments. Tolerance was determined using the agar diffusion method on two media: Brain Heart Infusion (BHI) agar and Mueller–Hinton (M-H) agar supplemented with 1.2% sheep blood, at BC concentrations of 0, 5, 10, 15, 20, 25, 30, 35, 40, and 45 µg/mL, which enabled the determination of minimum inhibitory concentrations (MICs). In addition, the presence of seven selected resistance genes to quaternary ammonium compounds (QACs), including benzalkonium chloride (qacE, qacF, qacG, qacH, qacJ, brcABC, and ermC), was analyzed using the PCR technique.

[PL:]

W bazie danych zdeponowano 14 plików zawierających dane eksperymentalne. Obejmują one:

  • Plik z danymi dotyczącymi izolatów, ich pochodzenia, profili tolerancji oraz obecności genów oporności: Data_on_isolates_tolerance_profiles.csv,
  • Trzy pliki zawierające zdjęcia posiewów mikrobiologicznych z zahamowaniem wzrostu izolatów na podłożu BHI dla trzech powtórzeń technicznych: Images_of_growth_inhibition_of_isolates_BHI_1st_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_BHI_2nd_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_BHI_3rd_technical_replicate.zip,
  • Trzy pliki zawierające zdjęcia posiewów mikrobiologicznych z zahamowaniem wzrostu izolatów na podłożu M-H + 1,2% krwi baraniej dla trzech powtórzeń technicznych: Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_1st_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_2nd_technical_replicate.zip, Images_of_growth_inhibition_of_isolates_M-H_+_1.2%_sheep_blood_3rd_technical_replicate.zip.

Ponadto zbiór zawiera cztery zestawy plików przedstawiających wyniki elektroforezy agarozowej PCR dla poszczególnych genów oporności: Electrophoresis_results_for_the_qacE_gene.zip, Electrophoresis_results_for_qacF_gene.zip, Electrophoresis_results_for_the_qacG_gene.zip, Electrophoresis_results_for_the_qacH_gene.zip, Electrophoresis_results_for_the_qacJ_gene.zip, Electrophoresis_results_for_the_brcABC_gene.zip i Electrophoresis_results_for_the_ermC_gene.zip.

Pliki zapisano w formatach .csv, .jpg oraz .png, a zostały przygotowane przy użyciu programów Microsoft Word oraz Microsoft Excel. Dane przedstawiają wyniki badań nad analizą tolerancji 51 izolatów bakterii Listeria innocua, pochodzących z surowych i przetworzonych produktów mięsnych oraz ze środowiska zakładów przetwórstwa mięsa, na chlorek benzalkoniowy, środek dezynfekcyjny powszechnie wykorzystywany w przemyśle spożywczym. Tolerancję oznaczano metodą metodą dyfuzji w agarze na dwóch podłożach: agarze Brain Heart Infusion (BHI) oraz agarze Mueller–Hinton (M-H) suplementowanym 1,2% krwi owczej, przy stężeniach BC wynoszących 0, 5, 10, 15, 20, 25, 30, 35, 40 i 45 µg/mL, co umożliwiło określenie minimalnych stężeń hamujących (MIC). Przeprowadzono także analize obecności siedmiu wybranych genów oporności na czwartorędowe sole amoniowe (QAC), do których należy chlorek benzalkoniowy (qacE, qacF, qacG, qacH, qacJ, brcABC i ermC), z z zastosowaniem techniki PCR.

Subject
Agricultural Sciences
Keyword

Listeria innocua, disinfectants, benzalkonium chloride, meat products, food safety

Related Publication

Zawiasa, A., Andrzejewska, A., Mikołajczak, P., Olejnik-Schmidt, A. Benzalkonium Chloride Tolerance Among Listeria innocua from Food and Food Processing Environments in Poland. Pathogens 2026, 15(1), 76 https://doi.org/10.3390/pathogens15010076 https://doi.org/10.3390/pathogens15010076 doi: 10.3390/pathogens15010076

2029-01-11

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