skip to main content
Idioma:
Tipo de recurso Ver resultados con: Ver resultados con: Sumario

Comparative evaluation of the effectiveness of alcohol-based sanitizers, UV-C radiation and hot air on three-age Salmonella biofilms

von Hertwig, Aline M. ; Prestes, Flavia S. ; Nascimento, Maristela S.

Food microbiology, 2023-08, Vol.113, p.104278-104278, Article 104278 [Revista revisada por pares]

England: Elsevier Ltd

Texto completo disponible

Citas Citado por
  • Título:
    Comparative evaluation of the effectiveness of alcohol-based sanitizers, UV-C radiation and hot air on three-age Salmonella biofilms
  • Autor: von Hertwig, Aline M. ; Prestes, Flavia S. ; Nascimento, Maristela S.
  • Materias: 2-Propanol ; Biofilm ; Biofilms ; Colony Count, Microbial ; Dry clean ; Dry sanitizer ; Ethanol - pharmacology ; Food hygiene ; Food Microbiology ; Low moisture food ; Salmonella ; Stainless Steel - analysis
  • Es parte de: Food microbiology, 2023-08, Vol.113, p.104278-104278, Article 104278
  • Notas: ObjectType-Article-1
    SourceType-Scholarly Journals-1
    ObjectType-Feature-2
    content type line 23
  • Descripción: Dry sanitation is recommended to control contamination and prevent microbial growth and biofilm formation in the low-moisture food manufacturing plants. The objective of this study was to evaluate the effectiveness of dry sanitation protocols on Salmonella three-age biofilms formed on stainless steel (SS) and polypropylene (PP). Biofilms were formed for 24, 48 and 96 h at 37 °C using a cocktail of six Salmonella strains (Muenster, Miami, Glostrup, Javiana, Oranienburg, Yoruba) isolated from the peanut supply chain. Then, the surfaces were exposed to UV-C radiation, hot air (90 °C), 70% ethanol and a commercial product based on isopropyl alcohol for 5, 10, 15 and 30 min. After 30min exposure, on PP the reductions ranged from 3.2 to 4.2 log CFU/cm2 for UV-C, from 2.6 to 3.0 log CFU/cm2 for hot air, from 1.6 to 3.2 log CFU/cm2 for 70% ethanol and from 1.5 to 1.9 log CFU/cm2 for the commercial product. On SS, after the same exposure time, reductions of 1.3–2.2 log CFU/cm2, 2.2 to 3.3 log CFU/cm2, 1.7 to 2.0 log CFU/cm2 and 1.6 to 2.4 log CFU/cm2 were observed for UV-C, hot air, 70% ethanol and commercial product, respectively. UV-C was the only treatment affected by the surface material (p < 0.05) whereas the biofilm age influenced the effectiveness of UV-C and hot air (p < 0.05). For most treatment, there was significant difference among the exposure times (p < 0.05). Overall, the fastest loss in the biofilm viability was noted in the first 5 min, followed by a tail phase. The time predicted by the Weibull model for the first decimal reduction ranged from 0.04 to 9.9 min on PP and from 0.7 to 8.5 min on SS. In addition, the Weibull model indicates that most of treatments (79%) required a long-term exposure time (>30 min) to achieve 3-log reductions of Salmonella biofilms. In summary, UV-C showed the best performance on PP whereas hot air was noted to be the most effective on SS. •Biofilm-forming Salmonella is an emerging problem for LMF industry.•Salmonella biofilms showed great resistance to alcohol-based sanitizers.•UV-C caused the highest reductions on Salmonella biofilms on polypropylene.•Hot air had the best performance on Salmonella biofilms on stainless steel.•Surface material and biofilm age significantly influenced the action of UV-C.
  • Editor: England: Elsevier Ltd
  • Idioma: Inglés
Enlaces
Volver a la lista de resultados
Ir a la página anteriorAnterior Resultado  2 SiguienteIr a la siguiente página

  • Realización: ABCD-USP USP   Logos de Redes Sociales: Freepik

Buscando en bases de datos remotas, por favor espere

  • Buscando por
  • enscope:(USP_VIDEOS),scope:("PRIMO"),scope:(USP_FISICO),scope:(USP_EREVISTAS),scope:(USP),scope:(USP_EBOOKS),scope:(USP_PRODUCAO),primo_central_multiple_fe
  • Mostrar lo que tiene hasta ahora