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	Provedor de dados BJM (29) ArchiMer (9) Ciência Rural (8) Arq. Bras. Med. Vet. Zootec. (5) Rev Salud Anim. (1) Acta Amazonica (1) ABCL (1) BABT (1) BJID (1) Rev. Microbiol. (1) Mais... Autor Leroi, Francoise (8) Brandelli,Adriano (3) Destro,Maria Teresa (3) Pilet, Marie-france (3) Saraoui, Taous (3) Silva,Wladimir Padilha da (3) Brillet, Anne (2) Chevalier, Frederique (2) Costa,Marisa da (2) Destro,M.T. (2) Hofer,Ernesto (2) Lima,Andréia Saldanha de (2) Motta,Amanda S. (2) Passerini, Delphine (2) Piccoli,Roberta Hilsdorf (2) Pilet, Marie France (2) Vallim,Deyse Christina (2) Abirosh,C. (1) Alfieri,Alice Fernandes (1) Alfieri,Amauri Alcindo (1) Mais... Palavra-chave Listeria monocytogenes (57) Biopreservation (7) Virulence (5) Food safety (4) Bacteriocins (3) Lactic acid bacteria (3) Listeriosis (3) Nisin (3) PFGE (3) Salmonella (3) Antimicrobials (2) Bacteriocin (2) Biofilm (2) Biofilms (2) Carnobacterium (2) Cheese (2) Co-culture (2) Cold smoked salmon (2) Escherichia coli (2) Food (2) Mais... Tipo do documento Info:eu-repo/semantics/article (46) Text (9) Info:eu-repo/semantics/other (1) Journal article (1) Ano 2018 (4) 2017 (5) 2016 (3) 2015 (1) 2014 (2) 2013 (8) 2012 (2) 2011 (1) 2010 (4) 2009 (2) 2008 (6) 2007 (3) 2006 (4) 2005 (3) 2004 (4) 2003 (1) 2001 (1) 2000 (2) 1999 (1) Mais... País Brazil (46) France (9) Argentina (1) Cuba (1) Idioma Inglês (46) Português (8) Espanhol (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 57 Primeira ... 1 2 3 ... Última Actividad antagonista de bacterias lácticas aisladas del medio marino contra cepas de Listeria ABCL Marguet,Emilio Rogelio; Vallejo,Marisol; Sierralta Chichisola,Verónica; Quispe,Jorge León. En el presente trabajo se estudiaron 74 bacterias lácticas para determinar su capacidad de inhibir el desarrollo de Listeria monocytogenes ATCC 7644 o L. innocua ATCC 33090. Dentro de las 7 que exhibieron actividad, 2 se seleccionaron para estudios complementarios y se identificaron por métodos fenotípicos y genotípicos como Enterococcus mundtii Tw 56 y Lactococcus lactis subsp. lactis Tw 34. Después de la neutralización con NaOH y tratamiento térmico (100 ºC y 121 ºC durante 5 min) la actividad antagonista del sobrenadante libre de células se mantuvo activa. El tratamiento con lisozima, lipasa y catalasa no afectó la actividad antimicrobiana. Sin embargo, la actividad enzimática de la tripsina suprimió la acción inhibitoria del sobrenadante, confirmando... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacterias lácticas; Listeria monocytogenes; Bacteriocinas; Ambiente marino. Ano: 2011 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0325-29572011000200008 Adaptative response of Listeria monocylogenes to osmotic and chill stress: consequences on food safety. ArchiMer Elmnasser, Noura; Ritz Bricaud, Magali; Guillou, Sandrine; Leroi, Francoise; Orange, Nicole; Bakhrouf, Amira; Federighi, Michel. Listeria monocytogenes is it psychrotrophic food-borne pathogen. This organism is problematic for food production industry due to its ubiquitous distribution ill nature and its tolerance to condition of osmotic and chill stress. One common strategy employed by many bacteria and by L. monocytogenes for adaptation to osmotic stress is by the intracellular accumulation of compatible solutes. Two different types of adaptative reponses to low temperature have undertaken by L. monocytogenes. One of the responses is accomplished by adjusting membrane fluidity through alteration of the membrane fatty acid composition. A second response consists ill the accumulation of osmolytes. In this brief review we will focus on these general systems Which are Of particular... Tipo: Text Palavras-chave: Food safety; Chill stres; Osmotic stress; Adaptation; Listeria monocytogenes; Sécurité des aliments; Stress froid; Stress salin; Adaptation; Listeria monocytogenes. Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-2549.pdf Antibacterial activity of bacteriocin-like substance P34 on Listeria monocytogenes in chicken sausage BJM Sant'Anna,Voltaire; Quadros,Deoni A.F.; Motta,Amanda S.; Brandelli,Adriano. The antimicrobial activity of the bacteriocin-like substance (BLS) P34 against Listeria monocytogenes was investigated in chicken sausage. The BLS was applied to chicken sausages (256 AU g-1) previously inoculated with a suspension of 10² cfu g-1 of L. monocytogenes. BLS P34 inhibited the indicator microorganism in situ in all incubation times for up to 10 days at 5 °C. The effectiveness of BLS P34 was increased when it was added in combination with nisin. The bacteriocin was also tested in natural eatable natural bovine wrapping (salty semi-dried tripe) against the same indicator microorganism, also showing inhibitory capability in vitro. BLS P34 showed potential to control L. monocytogenes in refrigerated meat products. Tipo: Info:eu-repo/semantics/article Palavras-chave: Bacteriocin; Chilled chicken sausage; Listeria monocytogenes; Biopreservation. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400019 Antibacterial efficacy of nisin, bacteriophage P100 and sodium lactate against Listeria monocytogenes in ready-to-eat sliced pork ham BJM Figueiredo,Ana Cláudia L.; Almeida,Rogeria C.C.. ABSTRACT The effectiveness of bacteriophage P100, nisin and sodium lactate, individually and in combination, in inhibiting Listeria monocytogenes in ready-to-eat pork ham slices was assessed. The antimicrobials were applied to the surfaces of ready-to-eat pork ham slices, which were inoculated with a mixture of L. monocytogenes. Among the individual antimicrobial treatments, bacteriophage P100 was the most effective, decreasing L. monocytogenes to undetectable levels at zero and 72 h post-infection. Sodium lactate was the least effective treatment. Treatment with nisin at zero h significantly reduced initial cell density (p < 0.05). However, this pattern was not observed at 72 h of storage. A significant difference (p < 0.05) existed between the... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobials; Food safety; Meat products; Listeria monocytogenes. Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822017000400724 Antibacterial efficacy of Nisin, Pediocin 34 and Enterocin FH99 against Listeria monocytogenes and cross resistance of its bacteriocin resistant variants to common food preservatives BJM Kaur,G.; Singh,T.P.; Malik,R.K.. Antilisterial efficiency of three bacteriocins, viz, Nisin, Pediocin 34 and Enterocin FH99 was tested individually and in combination against Listeria mononcytogenes ATCC 53135. A greater antibacterial effect was observed when the bacteriocins were combined in pairs, indicating that the use of more than one LAB bacteriocin in combination have a higher antibacterial action than when used individually. Variants of Listeria monocytogenes ATCC 53135 resistant to Nisin, Pediocin 34 and Enterocin FH99 were developed. Bacteriocin cross-resistance of wild type and their corresponding resistant variants were assessed and results showed that resistance to a bacteriocin may extend to other bacteriocins within the same class. Resistance to Pediocin 34 conferred cross... Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; Nisin; Pedioin 34; Enterocin FH99; Cross resistance. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000100009 Antilisterial activity of lactic acid bacteria isolated from vacuum-packaged brazilian meat and meat products BJM Martinis,Elaine C.P. De; Públio,Márcia R.P.; Santarosa,Priscila R.; Freitas,Flávia Z.. Twenty samples of Brazilian meat and meat products were screened by the agar overlay method for bacteriocin-producing lactic acid bacteria, using Lactobacillus sake ATCC 15521 as indicator strain. Based on Gram staining, KOH reaction, catalase test and fermentation of 49 carbohydrates (API 50 CH), three out of seven isolates with confirmed antagonist properties were identified as Lactobacillus curvatus, one as Leuconostoc mesenteroides and one as Leuconostoc sp. Two isolates could not be properly identified using these tests. The inhibitors produced by these strains were sensitive to proteases. Inhibition due to lytic bacteriophages was ruled out, so the isolates were classified as bacteriocin-producing lactic acid bacteria. Four of them presented... Tipo: Info:eu-repo/semantics/article Palavras-chave: Lactic acid bacteria; Meat; Bacteriocins; Biopreservation; Listeria monocytogenes. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822001000100008 Antimicrobial activity of autoclaved and non autoclaved copaiba oil on Listeria monocytogenes Ciência Rural Pieri,Fábio Alessandro; José,Raphaela Mansur; Galvão,Newton Nascentes; Nero,Luis Augusto; Moreira,Maria Aparecida Scatamburlo. The aim of this study was to evaluate the antimicrobial effect of different copaiba oil concentrations against the growth of Listeria monocytogenes, and analyze differences in inhibition of microorganisms with autoclaved and non autoclaved oil. This study provided an agar diffusion test with six isolates of bacteria and six different concentrations of autoclaved or non autoclaved copaiba oil and a negative control. The results showed sensitivity of five L. monocytogenes isolates related to the 10% autoclaved solution of copaiba oil. Four strains also showed sensitivity to the 5% autoclaved solution and one to 2.5% autoclaved solution. The 10% non autoclaved oil solution showed growth inhibition only for two strains. These results had pointed the 10%... Tipo: Info:eu-repo/semantics/article Palavras-chave: Phytotherapics; Copaifera; Antimicrobial drugs; Listeria monocytogenes. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782010000800020 Antimicrobial activity of some of the south-Indian spices against serotypes of Escherichia coli, Salmonella, Listeria monocytogenes and Aeromonas hydrophila BJM Indu,M.N.; Hatha,A.A.M.; Abirosh,C.; Harsha,U.; Vivekanandan,G.. Antibacterial activity of extracts of Allium sativum (garlic), Myristica fragrans (nutmeg), Zingiber officinale (ginger), Allium cepa (onion) and Piper nigrum (pepper) has been evaluated against 20 different serogroups of Escherichia coli, 8 serotypes of Salmonella, Listeria monocytogenes and Aeromonas hydrophila. Garlic extract showed excellent antibacterial activity against all the test organisms, except L. monocytogenes. Nutmeg showed good anti-listerial activity, although activity against E. coli and Salmonella were serotype dependent. Both garlic and nutmeg extracts were effective against A. hydrophila. Extracts of ginger showed inhibitory activity against two serogroups of E. coli: as O8 (enterotoxigenic E. coli) and O88 only. Extracts of onion and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Spices extract; Antibacterial activity; Escherichia coli; Salmonella; Listeria monocytogenes; Aeromonas hydrophila. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822006000200011 Antimicrobial activity of the Nisin Z producer Lactococcus lactis subsp. lactis Lc08 against Listeria monocytogenes in skim milk Arq. Bras. Med. Vet. Zootec. Perin,L.M.; Miranda,R.O.; Camargo,A.C.; Colombo,M.; Carvalho,A.F.; Nero,L.A.. The presented study aimed to verify the effect of different pH values, enzyme solutions and heat treatments on the antimicrobial activity of the bacteriocinogenic strain Lactococcus lactis subsp. lactis Lc08 and to test their antimicrobial activity against Listeria monocytogenes in reconstituted skim milk at refrigeration temperatures. This strain was previously described as a nisin Z producer and capable of inhibiting L. monocytogenes growth in in vitro tests. The antimicrobial activity of the bacteriocin cell-free supernatant of Lc08 was sensitive to enzyme treatments (except papain). The pH values and heating (65ºC for 30min, 75ºC for 15s) had no apparent effect on the antimicrobial activity of the bacteriocin produced by Lc08. Only treatment at... Tipo: Info:eu-repo/semantics/article Palavras-chave: Nisin Z; Milk; Antagonistic activity; Lactococcus lactis subsp. lactis; Listeria monocytogenes. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352013000500037 Antimicrobial effect of copper surfaces on bacteria isolated from poultry meat BJM Parra,Angel; Toro,Magaly; Jacob,Ricardo; Navarrete,Paola; Troncoso,Miriam; Figueroa,Guillermo; Reyes-Jara,Angélica. Abstract Poultry meat is a food product that usually carries high rates of microbial contamination, including foodborne pathogens. The poultry industry has established different systems to minimize these hazards. In recent years, extensive literature has demonstrated the antimicrobial activity of different contact surfaces made of copper to effectively reduce microbial loads. The aim of the present study was to evaluate the antibacterial effect of copper surfaces on the transmission of two foodborne pathogens – Salmonella enterica and Listeria monocytogenes – and a poultry native microbiota bacterial species – Enterobacter cloacae. We also evaluated the impact of the poultry meat matrix on the antimicrobial activity of a copper surface. Our results... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antimicrobial copper-alloys; Foodborne pathogens; Salmonella; Listeria monocytogenes; Poultry meat. Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000500113 Applications of protective cultures, bacteriocins and bacteriophages in fresh seafood and seafood products ArchiMer Pilet, Marie-france; Leroi, Francoise. Microbial seafood-borne disease represents 10 to 20% of the total food-borne outbreaks. Most of them are from bacterial origin and involve seafood products that have been contaminated by pathogenic Vibrio, Listeria monocytogenes and histaminogen bacteria. On the other hand, seafood products are very sensitive to the development of spoiling bacteria producing off-odours. Pathogenic and spoiling microflora are not always reduced or limited by the processing steps that are currently used in these foodstuffs, and the interest for alternative techniques such as bioprotection to improve quality and safety of seafood has increased in the last years. Among the microbial flora of lightly preserved seafood products, lactic acid bacteria usually become dominant... Tipo: Text Palavras-chave: Biopreservation of seafood; Seafood safety and spoilage; Lactic acid bacteria; Sensory quality; Listeria monocytogenes. Ano: 2010 URL: http://archimer.ifremer.fr/doc/00030/14138/11384.pdf Atividade antimicrobiana de bactérias lácticas de embutidos curados frente a Listeria monocytogenes Arq. Bras. Med. Vet. Zootec. Prado,C.S.; Santos,W.L.M.; Carvalho,C.R.; Moreira,E.C.; Costa,O.. Cepas de bactérias lácticas recuperadas de 336 colônias isoladas e selecionadas foram submetidas ao teste de atividade antimicrobiana direta, que identificou as produtoras de substâncias antimicrobianas capazes de inibir in vitro o desenvolvimento de duas cepas indicadoras de Listeria monocytogenes. As 108 cepas que inibiram diretamente pelo menos uma das cepas indicadoras receberam a denominação DTEI e foram selecionadas para o teste de atividade antimicrobiana indireta contra as mesmas cepas de L. monocytogenes, assim como frente a outras cepas de bactérias lácticas de origens diversas. Essa atividade inibidora indireta foi avaliada por meio de sobrenadantes isentos de células, esterilizados por meio de microfiltração, eliminando-se os principais... Tipo: Info:eu-repo/semantics/article Palavras-chave: Bactéria láctica; Atividade antimicrobiana; Listeria monocytogenes; Lactobacillus sp. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352000000400022 Behaviour of L. monocytogenes in sliced, vacuum-packed mortadella BJM Bersot,Luciano dos Santos; Gillio,Cíntia; Tavolaro,Paula; Landgraf,Mariza; Franco,Bernadette Dora Gombossy de Melo; Destro,Maria Teresa. This study evaluated the growth of naturally occurring L. monocytogenes in sliced, vacuum-packed mortadella samples during storage at 5ºC until the expiration date. Tukey's test indicated that counts of L. monocytogenes on 0, 10, 20, 30 and 40 days of storage were significantly different (p<0.05), indicating growth during shelf life. In three trials, the mean increase was 1.72 log cycles. Vacuum packing and storage under refrigeration were not effective in controlling the growth of L. monocytogenes in sliced mortadella, indicating that good manufacturing practices and implemented HACCP programs are essential to assure safety of this product. Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; Growth; Sliced mortadella; Vacuum-packing. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822008000300020 Biodiversity of Listeria monocytogenes sensitivity to bacteriocin-producing Carnobacterium strains and application in sterile cold-smoked salmon ArchiMer Brillet, Anne; Pilet, M; Prevost, H; Bouttefroy, A; Leroi, Francoise. The aim of this study was to demonstrate the inhibitory capacity of Carnobacterium strains against a collection of Listeria monocytogenes strains in cold-smoked salmon (CSS). Methods and Results: Three bacteriocin-producing strains, Carnobacterium divergens V41, C. piscicola V1 and C. piscicola SF668, were screened for their antilisterial activity against a collection of 57 L. monocytogenes strains selected from the French smoked salmon industry, using an agar spot test. All the Listeria strains were inhibited but three different groups could be distinguished differing in sensitivity to the three Carnobacterium strains. However, C. divergens V41 always had the highest inhibitory effect. The antilisterial capacity was then tested in sterile CSS blocks... Tipo: Text Palavras-chave: Listeria monocytogenes; Cold smoked salmon; Carnobacterium; Biopreservation; Bacteriocin. Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-610.pdf Biofilm formation by Listeria monocytogenes on stainless steel surface and biotransfer potential BJM Oliveira,Maíra Maciel Mattos de; Brugnera,Danilo Florisvaldo; Alves,Eduardo; Piccoli,Roberta Hilsdorf. An experimental model was proposed to study biofilm formation by Listeria monocytogenes ATCC 19117 on AISI 304 (#4) stainless steel surface and biotransfer potential during this process. In this model, biofilm formation was conducted on the surface of stainless steel coupons, set on a stainless steel base with 4 divisions, each one supporting 21 coupons. Trypic Soy Broth was used as bacterial growth substrate, with incubation at 37 ºC and stirring of 50 rpm. The number of adhered cells was determined after 3, 48, 96, 144, 192 and 240 hours of biofilm formation and biotransfer potential from 96 hours. Stainless steel coupons were submitted to Scanning Electron Microscopy (SEM) after 3, 144 and 240 hours. Based on the number of adhered cells and SEM, it was... Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; Biofilm; Biotransfer potential. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000100016 Bioprotective Effect of Lactococcus piscium CNCM I-4031 Against Listeria monocytogenes Growth and Virulence ArchiMer Saraoui, Taous; Leroi, Francoise; Chevalier, Frederique; Cappelier, Jean-michel; Passerini, Delphine; Pilet, Marie-france. Listeria monocytogenes is a Gram-positive pathogen occurring in many refrigerated ready-to-eat foods. It is responsible for foodborne listeriosis, a rare but severe disease with a high mortality rate (20–30%). Lactococcus piscium CNCM I-4031 has the capacity to prevent the growth of L. monocytogenes in contaminated peeled and cooked shrimp and in a chemically defined medium using a cell-to-cell contact-dependent mechanism. To characterize this inhibition further, the effect of L. piscium was tested on a collection of 42 L. monocytogenes strains. All strains were inhibited but had different sensitivities. The effect of the initial concentration of the protective and the target bacteria revealed that the inhibition always occurred when L. piscium had reached... Tipo: Text Palavras-chave: Biopreservation; Lactococcus piscium; Listeria monocytogenes; Co-culture; Cell ratio; Scanning electron microscopy; Virulence. Ano: 2018 URL: https://archimer.ifremer.fr/doc/00449/56065/57588.pdf Cepas de Lactobacillus spp. con capacidades probióticas aisladas del tracto intestinal de terneros neonatos Rev Salud Anim. Sánchez,Lilian; Omura,Michele; Lucas,Adams; Pérez,Tania; Llanes,Marisleidys; Ferreira,Celia de Luce. Se caracterizaron in vitro 17 cepas de Lactobacillus spp. aisladas del tracto intestinal de terneros neonatos, para seleccionar las mejores como candidatos probióticos y realizarles posteriormente los estudios in vivo. A todos los aislados se les realizó la prueba de la catalasa, la tinción de Gram y se estudió sus características culturales para su identificación preliminar. Se evaluó su capacidad probiótica mediante pruebas in vitro como fueron el crecimiento a diferentes temperaturas (30, 37 y 45°C), pH (2,5; 3,4; 5,4; 6,4) y capacidad de acidificación del medio de cultivo. Se preseleccionaron 10 cepas de Lactobacillus spp. que crecieron en todas las condiciones evaluadas. Se destaca el crecimiento de células viables de 6,7-10 log UFC/ml que... Tipo: Journal article Palavras-chave: Lactobacillus spp.; Probiótico; Salmonella sp.; Staphylococcus aureus; Escherichia coli; Listeria monocytogenes. Ano: 2015 URL: http://scielo.sld.cu/scielo.php?script=sci_arttext&pid=S0253-570X2015000200004 Characterization of Listeria monocytogenes isolated from a fresh mixed sausage processing line in Pelotas-RS by PFGE BJM von Laer,Ana Eucares; Lima,Andréia Saldanha de; Trindade,Paula dos Santos; Andriguetto,Cristiano; Destro,Maria Teresa; Silva,Wladimir Padilha da. Listeria monocytogenes is a bacterium capable to adhere to the surfaces of equipment and utensils and subsequently form biofilms. It can to persist in the food processing environmental for extended periods of time being able to contaminate the final product. The aim of this study was to trace the contamination route of L. monocytogenes on a fresh mixed sausage processing line, from raw material to the final product. The isolates obtained were characterized by serotyping and molecular typing by pulsed-field gel electrophoresis (PFGE) using the restriction enzymes ApaI and AscI. L. monocytogenes was detected in 25% of the samples. The samples of raw material were not contaminated, however, the microorganism was detected in 21% of the environmental samples... Tipo: Info:eu-repo/semantics/article Palavras-chave: Listeria monocytogenes; PFGE; Serotyping; Persistent strains. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000300021 Desenvolvimento de material de referência para microbiologia de alimentos contendo Listeria monocytogenes em matriz queijo Ciência Rural Brandão,Marcelo Luiz Lima; Costa,Juliana de Castro Beltrão da; Farias,Felipe Miceli de; Rosas,Carla de Oliveira; Bricio,Silvia Maria Lopes; Nascimento,Janaína dos Santos; Leite,Paola Cardarelli. A NBR ISO/IEC 17025:2005, uma das normas mais utilizadas em laboratórios de ensaio, descreve como um de seus critérios para a garantia da qualidade dos resultados analíticos a participação periódica dos laboratórios em ensaios de proficiência (EP). Os analitos, utilizados nos EP são materiais de referência (MR) provenientes de um mesmo lote, e devem apresentar características de homogeneidade e estabilidade. O objetivo deste estudo foi produzir um MR qualitativo destinado ao ensaio de pesquisa de Listeria monocytogenes em matriz queijo pela técnica de liofilização. Para a produção do MR, foi utilizado como matriz o queijo Minas frescal (QMF) ultrafiltrado. A matriz foi distribuída em frascos, contaminada com a bactéria alvo e submetida à liofilização,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Material de referência; Queijo; Listeria monocytogenes. Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782013001000028 Effect of eugenol on growth and listeriolysin o production by Listeria monocytogenes BABT Filgueiras,Cristina Tostes; Vanetti,Maria Cristina Dantas. The inhibitory effect of eugenol, a naturally occurring compound mainly present in the essential oil fraction of cloves, was studied on the growth and listeriolysin O (LLO) production by Listeria monocytogenes. Potassium efflux from cells promoted by eugenol was also determined after 24 h incubation in phosphate buffered saline. Eugenol promoted a delay on the growth of L. monocytogenes at concentrations of 100, 300 and 500 µg mL-1and above 800 µg mL-1 the effect was bactericidal. Production of LLO by L. monocytogenes in the presence of eugenol was reduced 80-100%. An accumulation of external K+ was observed above 300 µg mL-1 of eugenol which indicated that the cell membrane was affected. The results showed the effectiveness of eugenol in controlling... Tipo: Info:eu-repo/semantics/article Palavras-chave: Eugenol; Listeria monocytogenes; Antilisteric; LLO. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132006000400008 Registros recuperados: 57 Primeira ... 1 2 3 ... Última

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