Consulta: creatorFacets:"Malheiros,Patrícia da Silva"
Registros recuperados: 3
Data/hora: 17/06/2024 15:10:59

Antagonistic activity of Lactobacillus acidophilus LA10 against Salmonella enterica serovar Enteritidis SE86 in mice
Provedor de dados: 58
Autores: Scapin,Diane; Grando,Williani Fabiola; Rossi,Eliandra Mirlei; Perez,Karla Joseane; Malheiros,Patrícia da Silva; Tondo,Eduardo Cesar.
Salmonella enterica serovar Enteritidis is one of the main pathogens responsible for foodborne illness in Brazil. Probiotic bacteria can play a role in defense and recovery from enteropathogenic -infections. In this study, the ability of Lactobacillus acidophilus LA10 to colonise and exert anta-gonistic effects in the gastrointestinal tract was tested before and during experimental infection in conventional mice contaminated with S. Enteritidis (SE86). A dose of 0.1 mL containing 10(8) viable cells of SE86 and L. acidophilus LA10 was orally administered by gavage to mice. The experiment was divided into groups. As a negative control, Group 1 was administered only sterile saline solution. As a positive control, Group 2 was administered only SE86. Group 3...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: S. Enteritidis SE86; Probiotics; Mice; Lactobacillus acidophilus LA10.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100008

Inhibition of listeria monocytogenes in minas frescal cheese by free and nanovesicle-encapsulated nisin
Provedor de dados: 58
Autores: Malheiros,Patrícia da Silva; Daroit,Daniel Joner; Brandelli,Adriano.
The effectiveness of free and nanovesicle-encapsulated nisin to control Listeria monocytogenes in Minas Frescal cheese was investigated. Commercial nisin was encapsulated into liposomes of partially purified soy lecithin. Free (0.1 mg/mL and 0.25 mg/mL) and nanovesicle-encapsulated nisin (0.25 mg/mL) were applied onto the surface of cheese samples, and L. monocytogenes was inoculated before incubation at 6-8°C for 28 days. A bactericidal effect was observed with 0.25 mg/mL free nisin; a bacteriostatic effect was observed for liposome-encapsulated nisin and 0.1 mg/mL free nisin. Free nisin was more efficient than nisin-loaded liposomes in controlling L. monocytogenes. Possible reasons for this behavior, and also the significance of nisin to soft cheeses are...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Nisin; Liposome; Encapsulation; Cheese; Listeria monocytogenes.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400024

Adhesion and biocides inactivation of Salmonella on stainless steel and polyethylene
Provedor de dados: 58
Autores: Tondo,Eduardo Cesar; Machado,Taís Raquel Marcon; Malheiros,Patrícia da Silva; Padrão,Débora Kruger; Carvalho,Ana Lyl de; Brandelli,Adriano.
The adhesion of Salmonella (S.) strains to stainless steel and polyethylene and their inactivation by biocides used in food industry was investigated. Coupons of stainless steel and polyethylene were immersed in bacterial suspensions of S. Enteritidis, S. Typhimurium, and S. Bredeney during 15, 30, and 60 minutes, and submitted to different concentrations of peracetic acid (PAA), sodium hypochlorite (NaOCl), and quaternary ammonium (Quat) sanitizers. Hydrophobicity of the surfaces was evaluated by contact angle measurements using the sessile drop method and bacterial adhesion was accompanied through bacterial counts and scanning electron microscopy (SEM). Results indicated that the three serovars of Salmonella presented similar adhesion to both materials...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Salmonella; Adhesion; Biocides; Stainless steel; Polyethylene.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000400022