Biofilm formation of the L. monocytogenes strain 15G01 is influenced by changes in environmental conditions

Estudo Da Formação De Biofilmes Por Pseudomonas Aeruginosa

“…Em nossas condições, a disponibilidade de nutrientes foi determinante para um maior índice de formação de biofilme de P. aeruginosa em caldo TSB. Alguns estudos demonstraram que a formação de biofilme é induzida em condições limitadas de nutrientes (MYSZKA; CZACZYK, 2009;NOWAK et al 2015;GHANBARI et al 2016), variando de acordo com cada linhagem microbiana e sua capacidade de expressar fatores de adesão. Sendo assim, a disponibilidade de nutrientes desempenha papel importante na transição, a partir de um modo de vida planctônico para um modo séssil e fatores como o tempo de incubação podem interferir na intensidade de biofilme formado.…”

The Investigation of Intensity Biofilm Formation Listeria Monocytogenes at Different Temperatures

“…Кроме того, важнейшим механизмом адаптации L. monocytogenes является их способность к суще-ствованию и размножению в составе биопленок [1]. На существование биопленочных популяций в природе влияет множество факторов, основным из которых является температура [3]. Исходя из этого, целью данной работы было изучение возможности биопленкообразования L. monocytogenes при разной температуре.…”

The effect of blood on the ability of biofilm formation by Listeria monocytogenes strains

“…L. monocytogenes strains are capable of colonizing various surfaces contacting with food, including polystyrene, polypropylene, glass, stainless steel, quartz, marble and granite [6]. Biofilm formation is induced by many environmental factors found in the food processing industry, such as: pH changes, increased oxygen concentration, and also depends on the availability of nutrients [7][8]. Limited access to nutrients induces stress in L. monocytogenes, resulting in increased biofilm formation [7][8][9].…”

“…Biofilm formation is induced by many environmental factors found in the food processing industry, such as: pH changes, increased oxygen concentration, and also depends on the availability of nutrients [7][8]. Limited access to nutrients induces stress in L. monocytogenes, resulting in increased biofilm formation [7][8][9]. It has been shown that the presence of food production by-products (meat juice, pork serum or fat) in the processing environment stimulates the biofilm formation [10].…”

“…It has been shown that the presence of food production by-products (meat juice, pork serum or fat) in the processing environment stimulates the biofilm formation [10]. Conversion of planktonic forms to the mature biofilm structure increases the chance of survival of L. monocytogenes and determines the acquisition of resistance to environmental factors (UV radiation, www.journals.viamedica.pl/medical_research_journal acids) and antimicrobial compounds, including antibiotics, which makes it difficult to eliminate biofilms in the food processing plants [7][8]. Extracellular polymeric substances (EPS) protect the cells of bacteria in the biofilm from the unfavorable factors of the processing environment.…”