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Lytic bacteriophages as a potential alternative to control Staphylococcus aureus

Leite,Juliana Almeida; Pereira,Hyago Passe; Borges,Cristiano Amâncio Vieira; Alves,Bruna Rios Coelho; Ramos,Alessandra Isis Alves Pinheiro

Abstract: The objective of this work was to characterize autochthonous bacteriophages and to determine their lytic activity on Staphylococcus aureus. Six phages were isolated from dairy barn flush water through enrichment cultures with three S. aureus strains. All phages were characterized by DNA digestion by restriction enzymes and sequencing of the DNA fragment encoding endolysin. Each phage was tested agains...

Date: 2019   |   Origin: Oasisbr

Enterotoxigenic potential of Staphylococcus aureus isolated from Artisan Minas ...

Dores,Milene Therezinha das; Dias,Ricardo Souza; Arcuri,Edna Froeder; Nobrega,Juliana Escarião da; Ferreira,Célia Lucia de Luces Fortes

This study aimed to evaluate the presence of enterotoxigenic S. aureus in the endogenous starter and in Artisan Minas cheeses from the Serra da Canastra. Sixteen samples of endogenous starters and cheese were collected during the rainy and dry seasons. The isolation and enumeration of S. aureus were performed using the PetrifilmTM-Rapid S. aureus Plate Count method. The presence of enterotoxin in the cheese sam...

Date: 2013   |   Origin: Oasisbr

Tannin-tolerant bacteria from crossbred Holstein x Zebu cows

Arcuri,Pedro Braga; Odenyo,Agnes Awino; Arcuri,Edna Froeder; Ribeiro,Marlice Teixeira; Guimarães,Marta Fonseca Martins; Carneiro,Jailton da Costa

The objective of this work was to isolate and characterize tannin-tolerant ruminal bacteria from crossbred Holstein x Zebu cows fed a chopped mixture of elephant grass (Pennisetum purpureum), young stems of "angico-vermelho" (Parapiptadenia rigida), and banana tree (Musa sp.) leaves. A total of 117 bacteria strains were isolated from enrichment cultures of rumen microflora in medium containing tannin extracts. ...

Date: 2011   |   Origin: Oasisbr

Contagem, isolamento e caracterização de bactérias psicrotróficas contaminantes...

Arcuri,Edna Froeder; Silva,Priscilla Diniz Lima da; Brito,Maria Aparecida Vasconcelos Paiva; Brito,José Renaldi Feitosa; Lange,Carla Christine

Com os objetivos de quantificar, isolar e caracterizar bactérias psicrotróficas contaminantes de leite cru refrigerado, produzido na região da Zona da Mata de Minas Gerais e Sudeste do Rio de Janeiro, foram analisadas amostras de leite coletadas de 20 tanques coletivos e 23 tanques individuais. As contagens de bactérias psicrotróficas nas amostras de leite para os dois tipos de tanques de refrigeração variaram ...

Date: 2008   |   Origin: Oasisbr

Emprego do Somacount 300, calibrado com leite de vaca, na contagem de células s...

Arcuri,Edna Froeder; Silva,Priscilla Diniz Lima da; Brito,José Renaldi Feitosa; Silva,Marcio Roberto; Souza,Guilherme Nunes

Neste estudo, foi comparada a contagem de células somáticas (CCS) de amostras pareadas de leite de 86 cabras pelo método eletrônico (Somacount 300) calibrado com padrão de vaca, com a técnica padrão de contagem microscópica direta utilizando corante pyronina Y - verde de metila. As cabras eram das raças Saanen e Toggenburg de um criatório localizado na Zona da Mata de Minas Gerais. Em complementação, foi avalia...

Date: 2004   |   Origin: Oasisbr

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