Produção de biofilme por Staphylococcus chromogenes isolados de amostras de leite provenientes de rebanhos bovinos com mastite

Israel, L.F.S.; Rabello, Renata F.; Domingos, Susan Christina Braga; Medeiros, Luciana S.

doi:10.1590/1678-4162-9866

Cited by 7 publications

(6 citation statements)

References 20 publications

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“…coagulase negativo apresentou forte formação de biofilme. Este resultado coincide com os achados encontrados por Israel et al (2018), Leite et al (2019) e Chagas et al (2020), que também reportaram a formação de biofilme para diferentes espécies deste gênero. Já as cepas de Klebsiella spp., demonstraram diferença nos resultados, sendo uma com fraca e outra com forte capacidade de formação de biofilme.…”

Section: Resultsunclassified

Qualidade Da Água Para Consumo Humano No Município De Viamão Em 2018 E 2019

Doyle¹,

Cardoso²

2022

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A Revista Higiene Alimentar iniciou sua trajetória em 1982 e tornou-se referência na área, transitando e servindo de elo entre os setores produtivo, acadêmico e profissional na produção de alimentos.A publicação trata dos temas atuais relacionados à área da ciência dos alimentos, distribuídos em diversas seções, a fim de oferecer ao leitor os subsídios necessários ao debate de questões que envolvem a produção das matériasprimas, sua industrialização e, sobretudo, o entendimento das modernas tecnologias de processamento para a obtenção do alimento nutritivo, saudável, de alta qualidade e seguro.Nesse momento, quando a busca por sustentabilidade se torna um conceito holístico -ambiental e econômico, é impossível falar sobre compliance, comprometimento e sustentabilidade sem envolver e ter como norte a promoção do ser humano em todas as esferas organizacionais, oferecer condições dignas de vida pessoal e profissional para que se atinja, de forma robusta e sustentável, a Segurança Alimentar.É nisso que acreditamos. Por isso, continuamos a trabalhar para desenvolver e oferecer o que a Revista Higiene Alimentar sempre propôs -ser um ponto de referência, de encontro, de consulta a todos os envolvidos na promoção da Segurança Alimentar. Agradecemos a todos os envolvidos por participarem dessa bela história e trabalho ao longo desses anos e Convidamos você para continuar a escrever essa história.

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Section: Resultsunclassified

Qualidade Da Água Para Consumo Humano No Município De Viamão Em 2018 E 2019

Doyle¹,

Cardoso²

2022

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“…Mastitis caused by Escherichia coli has clinical signs such as a drop in milk production, fever, dehydration, severe depression, loss of appetite and signs of inflammation in the udder, which can lead to severe infections and even death of the animal [ 7 ]. Mastitis caused by Escherichia coli is unlikely to cure spontaneously, requiring treatment with antibiotics and cephalosporins which have been widely used in the treatment of mastitis, including cephalexin and ceftiofur.…”

Section: Discussionmentioning

confidence: 99%

“…The clinical form causes visible changes in the udder, evident signs of inflammation, associated with changes in milk composition [ 7 ]. The subclinical is characterized by an asymptomatic infection or only a decrease in milk production can be observed [ 8 ].…”

Section: Introductionmentioning

confidence: 99%

Resistance Profile of Bovine Mastitis Isolates, Presence of the mecA Gene and Identification of ESBL Producing Strains from Small Rural Dairy Properties

Fazoli

Rey

Rubio

et al. 2023

Animals

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Bovine mastitis is an inflammation of the mammary gland in response to invasion by opportunistic agents. Due to the high economic importance of dairy production and the complexity related to animal health, the objective of this work was to identify and evaluate the antibacterial resistance profile of samples of mastitis milk, milking hand and milking equipment from small rural dairy farms belonging to the northwest region of the state of Paraná, Brazil. Five small, non-technical dairy farms in the municipalities of Boa Esperança, Juranda and Tapejara, all belonging to the northwest region of the state of Paraná, Brazil, were selected. The properties had Holstein and/or crossbred herds, carried out a bucket-by-foot milking system and all had the presence of animals with subclinical mastitis confirmed by the California Mastitis Test. Samples of sterile swabs from the milking insufflators, the milking hand and milk samples were collected—and later, isolation tests and phenotypic characterization of the samples, sensitivity tests to antimicrobials and phenotypic tests for the detection of beta-producing strains were performed with extended-spectrum beta-lactamase (ESBL), molecular identification of Staphylococcus aureus isolates and mecA gene research. Of the 199 samples collected from the 15 selected properties in the municipalities of Boa Esperança, Tapejara and Juranda, 72 (36.20%) were classified as multiresistant. Isolated from milkers’ hands and milking machines, which phenotypically produce extended-spectrum beta-lactamase (ESBL), the presence of the mecA gene was also observed in 11 isolates of Staphylococcus spp. of milk samples, machines and milking hands. Mastitis can be spread to the herd through the milking process by the milkers’ instruments and hands, and adequate management measures can prevent its transmission and the conscious use of antibiotics decreases the prevalence of multidrug-resistant pathogens. In this work, different pathogenic bacteria were detected in mastitic milk, milking equipment and milking hand with a high percentage (36.20%) of isolates classified as multidrug resistant. In addition, the presence phenotypically (ESBL) and molecularly (mecA gene) of isolates carrying resistance genes was also verified. These results directly reflect on the health of the animals, the health of the workers and the health of the respective environment, which can enable the continuity of the propagation of the etiological agents involved in the mastitis infection. The awareness of producers and workers on these properties about the disease, transmission, sanitary aspects and adequate management and treatment are essential for improving milk production and production efficiency.

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“…And Gram‐positive strains of: Enterococcus faecalis ATCC 29212, Staphylococcus aureus ATCC 25923 and Streptococcus pneumoniae ATCC 11733. Additionally, two clinical strains were also tested: biofilm forming of Staphylococcus chromogenes (LB03) and S. aureus (LB14) positive coagulase, both collected from bovine subclinical and identified by the matrix assisted laser desorption ionization‐time of flight mass spectrometry method 16 …”

Section: Methodsmentioning

confidence: 99%

Antibacterial activity of honeys from Amazonian stingless bees of Melipona spp. and its effects on bacterial cell morphology

et al. 2020

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BACKGROUND Stingless bee honey has great therapeutic potential, especially as an antimicrobial agent. In the present study, we evaluated the in vitro antibacterial potential of honey from Melipona spp. with occurrence in Rio Branco‐AC and Xapuri‐AC from the Amazonian region. Samples were collected from the species Melipona eburnea, Melipona grandis, Melipona flavolineata and Melipona seminigra. The antibacterial activity of the honey samples was tested against standard Gram‐positive and Gram‐negative bacteria and two strains isolated from bovine mastitis. RESULTS In the agar diffusion assay, we observed antibacterial activity for the four honeys against the tested strains. The honey from M. flavolineata showed a minimmum inhibitory concentration (MIC) lower than 3.12% (v/v). The minimum bactericidal concentration values were larger than the MIC for most of the microorganisms tested. Scanning electron microscopy (SEM) showed the damaging effect of the honey of M. flavolineata on Staphylococcus aureus cells, as well as its inhibitory effect on cell division. CONCLUSION The results of the present study demonstrate that the honey from stingless bees possesses in vitro antimicrobial activity against pathogenic bacteria. The effects observed by SEM show that honey from the Amazonian stingless bee M. flavolineata has promising therapeutic potential as a future antimicrobial agent. © 2020 Society of Chemical Industry

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Produção de biofilme por Staphylococcus chromogenes isolados de amostras de leite provenientes de rebanhos bovinos com mastite

Cited by 7 publications

References 20 publications

Qualidade Da Água Para Consumo Humano No Município De Viamão Em 2018 E 2019

Qualidade Da Água Para Consumo Humano No Município De Viamão Em 2018 E 2019

Resistance Profile of Bovine Mastitis Isolates, Presence of the mecA Gene and Identification of ESBL Producing Strains from Small Rural Dairy Properties

Antibacterial activity of honeys from Amazonian stingless bees of Melipona spp. and its effects on bacterial cell morphology

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