Predictive Microbiology
Mostrando 13-24 de 36 artigos, teses e dissertações.
-
13. Uso de modelos preditivos no crescimento e inativação de esporos de Alicyclobacillus acidoterrestris em suco de laranja e maça. / Use of predictive models for growth and inactivation of alicyclobacillus acidterrestris spores in orange and apple juices.
A presente pesquisa desenvolveu modelos preditivos de crescimento e/ou inativação de Alicyclobacillus acidoterrestris em sucos de laranja e maçã. Foram estudados os efeitos do pH, temperatura de incubação (T), concentração de sólidos solúveis (°Brix) e de nisina no crescimento de A. acidoterrestris CRA 7152 em sucos concentrados de laranja e maç�
Publicado em: 2005
-
14. Comparison of the Directigen 1-2-3 Group A Strep Test with culture for detection of group A beta-hemolytic streptococci.
The Directigen 1-2-3 Group A Strep Test (DGAST; BBL Microbiology Systems, Cockeysville, Md.) was compared with conventional culture procedures on Trypticase soy agar with 5% sheep blood (BBL) and Selective Streptococcal Agar (ssA; BBL) for detection of group A beta-hemolytic streptococci (GABHS) for 1,006 patients complaining of sore throat. The DGAST was pe
-
15. Significance of Inoculum Size in the Lag Time of Listeria monocytogenes
The lag time of Listeria monocytogenes growing under suboptimal conditions (low nutrient concentrations, pH 6, and 6.5°C) was extended when the inoculum was severely stressed by starvation and the inoculum size was very small. Predictive microbiology should deal with bacterial stress and stochastic approaches to improve its value for the agro-food industry.
American Society for Microbiology.
-
16. Rapid organism identification from Bactec NR blood culture media in a diagnostic microbiology laboratory.
AIMS--To evaluate rapid organism identification on positive blood culture Bactec NR media (phial types 26, 27, 42 and 17), and to assess the usefulness of these procedures in a diagnostic microbiology laboratory. METHODS--Two hundred and sixty, first positive, blood culture bottles from individual patients were tested by rapid identification methods selected
-
17. Laboratory evaluation of leukocyte esterase and nitrite tests for the detection of bacteriuria.
We compared the sensitivity, specificity, and predictive values of the 1-min leukocyte esterase test and the test for urinary nitrite alone and in combination as screening tests for bacteriuria in over 5,000 clinical urine specimens. The leukocyte esterase-nitrite combination had a sensitivity of 79.2%, a specificity of 81%, and a negative predictive value o
-
18. Evaluation of a microdot immunofluorescent antigen detection test for Chlamydia trachomatis.
OBJECTIVE--To evaluate a centrifuge enhanced direct immunofluorescent antigen test (MD test), compared with conventional culture and ELISA testing in the diagnosis of Chlamydia trachomatis infection. SETTING--A District General Hospital situated 30 miles from a University Department of Medical Microbiology. SUBJECT AND METHOD--A prospective study on specimen
-
19. Evaluation of the Directigen 1,2,3 Group A Strep Test for diagnosis of streptococcal pharyngitis.
The Directigen 1,2,3 Group A Strep Test (DGAST; BBL Microbiology Systems, Cockeysville, Md.) was compared with conventional culture methods for the detection of group A streptococci. Among 327 children, the DGAST has a sensitivity of 75.0%, a specificity of 99.1%, and positive and negative predictive values of 97.5 and 89.3%, respectively, as compared with 4
-
20. An assessment of the histological criteria used to diagnose infection in hip revision arthroplasty tissues.
AIM: To characterise the number and nature of the inflammatory cells seen in cases of septic or aseptic loosening of hip arthroplasty, and to establish reliable histological criteria to distinguish between these two conditions. METHODS: Histological examination of paraffin sections of periprosthetic tissues (pseudocapsule, femoral and acetabular pseudomembra
-
21. Evaluation of three commercial agglutination tests for the identification of Staphylococcus aureus.
Three commercially available rapid slide agglutination tests for the identification of Staphylococcus aureus were evaluated with 354 recent clinical isolates (165 strains of S. aureus). The test results of two latex agglutination products, SeroSTAT Staph (Scott Laboratories, Inc.) and Staphylatex (American Micro Scan), and one hemagglutination product, Staph
-
22. Audit of the histopathological diagnosis of non-neoplastic colorectal biopsies: achievable standards for the diagnosis of inflammatory bowel disease.
AIM: To assess the performance of a histopathology department in diagnosing inflammatory bowel diseases with comparison of reports from other centres. STUDY POPULATION: 1067 sets of endoscopic biopsies received in the department of histopathology, Royal Hallamshire Hospital, 1990-1995. METHODS: The histopathological diagnosis of non-neoplastic endoscopic col
-
23. Multiplex PCR for identification of methicillin-resistant staphylococci in the clinical laboratory.
A multiplex PCR assay for detection of the staphylococcal mecA gene (the structural gene for penicillin-binding protein 2a) was compared with agar dilution and disk diffusion susceptibility test methods for identifying methicillin resistance. The multiplex PCR assay combined two primer sets (mecA and 16S rRNA) in a single reaction. A total of 500 staphylococ
-
24. Diagnosis of Giardia lamblia infections by detection of parasite-specific antigens.
Antigen detection methods may facilitate diagnosis of Giardia lamblia in stool specimens. As determined by sodium dodecyl sulfate-polyacrylamide gel electrophoresis analysis and immunoblotting, G. lamblia cysts and trophozoites share several antigens, especially in the 65-kilodalton and 30- to 34-kilodalton regions. By using blind methods, we compared result