Diluted Peptone
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Recovery of Salmonella Gallinarum in the Organs of Experimentally-Inoculated Japanese Quails (Coturnix coturnix)
ABSTRACTSalmonellosis is an infection caused by specific or non specific serotypes of theSalmonella genus, responsible for losses in the poultry industry. Fowl typhoid, caused by S. Gallinarum (SG) is important because it causes elevated mortality in adult birds, leading to economic losses in the poultry industry. This study aimed at quantifying the number o
Rev. Bras. Cienc. Avic.. Publicado em: 2015-09
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2. Ação do ultrassom na remoção do biofilme dos reservatórios de equipos odontológicos da Faculdade de Odontologia de Bauru / Action of ultrasound on biofilm removal of the dental units reservoir of water from Bauru School of Dentistry
Foram avaliados 25 reservatórios de água dos equipos odontológicos da Clínica de Dentística/Endodontia da FOB/USP com relação à presença de micro-organismos e a ação do ultrassom (US) na remoção do biofilme. Amostras de 10ml de água foram obtidas e alíquotas de 25l in natura e diluída até 10-4 foram semeadas pela técnica da gota nos meios:
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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3. Microbial contamination of luncheon meat sliced and packaged at supermarkets in Porto Alegre, Brazil
Background: Ready-to-eat (RTE) foods are considered a high risk food group, since they are often consumed without a cooking step. Luncheon meat, a RTE food widely consumed in Brazil, is traditionally produced as industrially vacuum-packaged loaves and afterwards is sliced and re-packaged at retail stores. Since this practice may pose an additional hazard of
Publicado em: 2011
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4. Antagonistic properties of some microorganisms isolated from Brazilian tropical savannah plants against Staphylococcus coagulase-positive strain
Endophytic microorganisms are relatively unstudied as potential sources of novel natural products for medical and commercial exploitation. The aim of this work was to investigate some Brazilian tropical savannah trees Cassia leptophylla and Prunus spp. in order to isolate the endophytic microorganisms associated with these plants. The samples were disinfecte
Journal of Venomous Animals and Toxins including Tropical Diseases. Publicado em: 2008
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5. Cellular viability of Saccharomyces cerevisiae cultivated in association with contaminates bacterias of alcoholic fermentation / Viabilidade celular de Saccharomyces cerevisiae cultivada em associação com bactérias contaminantes da fermentação alcoólica
The aim of this work was to study the influence of the bacteria Bacillus and Lactobacillus, as well as their metabolic products, in reduction of cellular viability of Saccharomyces cerevisiae, when in mixed culture of yeast and active and treated bacteria. Also was to evaluated an alternative medium (MCC) for the cultivation of bacteria and yeast, constitute
Publicado em: 2005
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6. Survival of Campylobacter jejuni inoculated into ground beef.
Ground beef was inoculated with mixed cultures of Campylobacter jejuni, and the samples were subjected to various cooking and cold-storage temperatures. When samples were heated in an oven at either 190 or 218 degrees C, approximately 10(7) cells of C. jejuni per g were inactivated (less than 30 cells per g) in less than 10 min after the ground beef reached
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7. Factors Affecting the Rate of Heat-induced Spore Germination in Dictyostelium discoideum1
Washed spores of Dictyostelium discoideum, strains NC-4H, NC-4D, and V-12, germinated rapidly after being heat shocked at or near 45.0 C for 30 min. Cultures of the slime molds were grown in association with Escherichia coli B/r as the host bacterium; spores taken from plates of synthetic medium had a higher final germination value than spores from complex m
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8. Sensitive Detection of Escherichia coli O157:H7 in Food and Water by Immunomagnetic Separation and Solid-Phase Laser Cytometry
Rapid, direct methods are needed to assess active bacterial populations in water and foods. Our objective was to determine the efficiency of bacterial detection by immunomagnetic separation (IMS) and the compatibility of IMS with cyanoditolyl tetrazolium chloride (CTC) incubation to determine respiratory activity, using the pathogen Escherichia coli O157:H7.
American Society for Microbiology.
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9. Cholera toxin-like toxin released by Salmonella species in the presence of mitomycin C.
Several serotypes of Salmonella were shown to release increased amounts of a cholera toxin-like toxin during culture in vitro with mitomycin C (MTC). Filter-sterilized culture supernatants containing the toxin caused elongation of Chinese hamster ovary cells, which could be blocked by heating the supernatants at 100 degrees C for 15 min or by adding mixed ga
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10. Factors affecting inactivation of Moraxella-Acinetobacter cells in an irradiation process.
The effect of various stages of the irradiation processing of beef on the injury and inactivation of radiation-resistant Moraxella-Acinetobactor cells was studied. Moraxella-Acinetobacter cells were more resistant to heat inactivation and injury when heated in meat with salts (0.75% NaCl and 0.375% sodium tripolyphosphate) then in meat without salts. These s
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11. Nutrient Shock and Incubation Atmosphere Influence Recovery of Culturable Helicobacter pylori from Water
Three different media—Columbia agar, Wilkins-Chalgren agar, and Helicobacter pylori special peptone agar—were prepared in a diluted version and compared to the standard medium formulation in order to study a possible nutrient shock effect observed when recovering H. pylori from water by counting the number of CFU. This same parameter was subsequently use
American Society for Microbiology.
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12. Regulation of mannitol biosynthesis and degradation by Cryptococcus neoformans.
Cryptococcus neoformans, an encapsulated yeast that is an opportunistic pathogen of AIDS patients, produced and secreted mannitol when incubated with an appropriate carbon source. Glucose, fructose, and mannose were good growth substrates and were converted to mannitol. Maltose and xylose were good growth substrates but were not converted to mannitol. Cells