Chryseobacterium
Mostrando 13-24 de 42 artigos, teses e dissertações.
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13. Produção de hidrolisados protéícos de penas de frango utilizando bactérias queratinolíticas.
Com o crescimento populacional, a indústria avícola tem se desenvolvido rapidamente, devido à demanda de alimentos. O seu produto possui grande aceitação no mercado mundial, em função do seu valor nutricional e por não existirem restrições culturais. Entretanto, este alimento gera grande quantidade de resíduos, dentre eles, as penas. Elas são com
Publicado em: 2007
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14. Bactérias queratinolíticas isoladas de resíduos de penas
O objetivo deste estudo foi caracterizar bactérias queratinolíticas isoladas resíduos de penas. Quatro isolados foram selecionados após crescimento em meio sólido contendo farinha de pena como única fonte de carbono e nitrogênio e avaliados quanto a atividade proteolítica em placas de ágar leite. Foram identificadas três linhagens Gram-negativas (p
Brazilian Journal of Microbiology. Publicado em: 2006-09
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15. Avaliação de proteases extracelulares de linhagem Chryseobacterium sp. Kr6 e purificação e caracterização de uma metaloprotease queratinolítica / Evaluation of extracellular proteases from Chryseobacterium sp. Kr6 strain and purification and characterization of a keratinolytic metalloprotease
A linhagem queratinolítica Chryseobacterium sp. Kr6 mostrou-se com possibilidade de aplicação em processos envolvendo queratinólise, principalmente na hidrólise de penas de frango e depilação de couro bovino. No presente trabalho avaliou-se o efeito da composição do meio sobre o crescimento e atividade proteolítica deste isolado e uma protease quer
Publicado em: 2006
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16. Antimicrobial Susceptibility and Epidemiology of a Worldwide Collection of Chryseobacterium spp.: Report from the SENTRY Antimicrobial Surveillance Program (1997-2001)
Limited data are available on Chryseobacterium spp. leading to an evaluation of the patient demographics and susceptibility patterns for Chryseobacterium spp. collected in the first 5 years of the SENTRY Antimicrobial Surveillance Program (1997 to 2001). Fifty isolates (24 Chryseobacterium meningosepticum, 20 Chryseobacterium indologenes, two Chryseobacteriu
American Society for Microbiology.
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17. Susceptibilities of Chryseobacterium indologenes and Chryseobacterium meningosepticum to cefepime and cefpirome.
In vitro activities of cefepime and cefpirome against 96 isolates of Chryseobacterium indologenes and 21 of C. meningosepticum were determined by the agar dilution method. Overall, cefepime was more active than cefpirome against C. indologenes (MIC at which 50% of the isolates were inhibited [MIC50] and MIC90, 4 and 16 microg/ml, respectively, for cefepime a
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18. A Novel Protein-Deamidating Enzyme from Chryseobacterium proteolyticum sp. nov., a Newly Isolated Bacterium from Soil
A novel protein-deamidating enzyme, which has potential for industrial applications, was purified from the culture supernatant of Chryseobacterium proteolyticum strain 9670T isolated from rice field soil in Tsukuba, Japan. The deamidating activities on carboxybenzoxy (Cbz)-Gln-Gly and caseins and protease activity were produced synchronously by the isolate.
American Society for Microbiology.
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19. Molecular and Biochemical Characterization of Ambler Class A Extended-Spectrum β-Lactamase CGA-1 from Chryseobacterium gleum
Antibiotic susceptibility testing by disk diffusion of a Chryseobacterium gleum isolate, strain CIP 103039, showed a typical synergy image between clavulanic acid and expanded-spectrum cephalosporins. Shotgun cloning gave a recombinant plasmid in Escherichia coli that produced a β-lactamase, CGA-1, with a pI value of 8.9 that conferred resistance to most pe
American Society for Microbiology.
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20. Clinical and Microbiological Analysis of Bloodstream Infections Caused by Chryseobacterium meningosepticum in Nonneonatal Patients
Chryseobacterium meningosepticum bloodstream infections in 11 nonneonatal patients were reported. More than half of the infections were community acquired. PCR assays indicated that the organisms produced extended-spectrum β-lactamases as well as metallo-β-lactamases. Genotyping showed diverse fingerprints among the isolates. Six patients survived without
American Society for Microbiology.
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21. Genetic and Biochemical Characterization of CGB-1, an Ambler Class B Carbapenem-Hydrolyzing β-Lactamase from Chryseobacterium gleum
Chryseobacterium gleum (previously included in the Flavobacterium IIb species) is a gram-negative aerobe that is a source of nosocomial infections. An Ambler class B β-lactamase gene was cloned and expressed in Escherichia coli from reference strain C. gleum CIP 103039 that had reduced susceptibility to expanded-spectrum cephalosporins and carbapenems. The
American Society for Microbiology.
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22. Reappraisal of the antimicrobial susceptibilities of Chryseobacterium and Flavobacterium species and methods for reliable susceptibility testing.
Several Flavobacterium species, comprising a heterogeneous group of gram-negative bacilli that are capable of causing opportunistic infections in humans, have recently been reclassified as Chryseobacterium or Myroides species. Intrinsically resistant to a number of antibiotics, these organisms have been reported to be susceptible to vancomycin and certain ot
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23. EBR-1, a Novel Ambler Subclass B1 β-Lactamase from Empedobacter brevis
Empedobacter brevis (formerly designated Flavobacterium breve) is a gram-negative aerobe involved in nosocomial infections. The Ambler class B β-lactamase gene blaEBR-1 was cloned and expressed in Escherichia coli from E. brevis clinical strain ASS-1, which had reduced susceptibility to expanded-spectrum cephalosporins and carbapenems. Purified β-lactamase
American Society for Microbiology.
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24. Changes in Populations of Rhizosphere Bacteria Associated with Take-All Disease of Wheat
Take-all, caused by Gaeumannomyces graminis var. tritici, is one of the most important fungal diseases of wheat worldwide. Knowing that microbe-based suppression of the disease occurs in monoculture wheat fields following severe outbreaks of take-all, we analyzed the changes in rhizosphere bacterial communities following infection by the take-all pathogen. S
American Society for Microbiology.