Psychrotrophic Gram Negative
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Psychrotrophic bacteria in Brazilian organic dairy products: identification, production of deteriorating enzymes and biofilm formation
Abstract The psychrotrophic bacteria count and the profile of Gram-negative bacteria present in commercial Brazilian organic dairy products (27 samples, pasteurized whole milk, Minas Frescal cheese, and yoghurt, equally distributed) as well as the biofilm-producing capacity and the production of deteriorating enzymes were investigated. Most of the samples (5
Food Sci. Technol. Publicado em: 2021-09
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2. IdentificaÃÃo e CaracterizaÃÃo de Bacterias PsicrotrÃficas Gram-Negativas Isoladas de Tanque de RefrigeraÃÃo por ExpansÃo. / Identification and characterization of psychrotrophic Gram-negative microorganisms isolated from bulk tank milk
The aim of this research was to studed the diversity of psychrotrophic Gram-negative microorganisms present in milk in communitarian bulk tank and to evaluate their capacity to production extracellular enzymes and resistance of the isolates to antibiotics. Samples of surfaces of 32 bulk tank milk were collected with sterile swab which that 60 isolates were s
Publicado em: 2007
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3. Transformation Assay for Identification of Psychrotrophic Achromobacters
The finding that many psychrotrophic, gram-negative, nonmotile, oxidase-positive coccobacilli (achromobacters) are competent for genetic transformation made possible the development of a transformation assay that permits recognition of genetically related strains. It has been demonstrated that 109 independently isolated achromobacters are genetically related
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4. Ocular infection caused by Psychrobacter immobilis acquired in the hospital.
The name Psychrobacter immobilis recently has been proposed for a group of chiefly psychrotrophic, aerobic, gram-negative, nonmotile, oxidase-positive coccobacilli commonly found associated with fish, processed meat, and poultry products. This article reports an ocular infection in a 12-day-old newborn who acquired the infection in the hospital, probably bec
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5. Influence of Temperature Adaptation on Glucose Metabolism in a Psychrotrophic Strain of Cytophaga johnsonae†
Selective enrichment of yellow-orange-pigmented, gram-negative bacteria related to Cytophaga johnsonae from lake sediment was dependent on low temperatures (ca. 5°C). However, this temperature effect was abolished when excessive amounts of dissolved organic carbon (10 mM N-acetylglucosamine) were added. A psychrotrophic freshwater isolate of C. johnsonae wa
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6. Cold-Adapted Alanine Dehydrogenases from Two Antarctic Bacterial Strains: Gene Cloning, Protein Characterization, and Comparison with Mesophilic and Thermophilic Counterparts
The genes encoding NAD+-dependent alanine dehydrogenases (AlaDHs) (EC 1.4.1.1) from the Antarctic bacterial organisms Shewanella sp. strain Ac10 (SheAlaDH) and Carnobacterium sp. strain St2 (CarAlaDH) were cloned and expressed in Escherichia coli. Of all of the AlaDHs that have been sequenced, SheAlaDH exhibited the highest level of sequence similarity to th
American Society for Microbiology.
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7. Identification of the tliDEF ABC Transporter Specific for Lipase in Pseudomonas fluorescens SIK W1
Pseudomonas fluorescens, a gram-negative psychrotrophic bacterium, secretes a thermostable lipase into the extracellular medium. In our previous study, the lipase of P. fluorescens SIK W1 was cloned and expressed in Escherichia coli, but it accumulated as inactive inclusion bodies. Amino acid sequence analysis of the lipase revealed a potential C-terminal ta
American Society for Microbiology.