Webb1 maj 1995 · The species identification of Campylobacter isolates in Finland could be improved by using a standardized hippurate hydrolysis test to identify hippurate-positive C. jejuni and testing Hippurate-negative strains by molecular methods, which would improve the epidemiological data on this important zoonotic pathogen. Expand 46 Webb1 jan. 1983 · This test made possible the detection of hippurate hydrolysis by Lancefield Group Bbeta-hemolytic streptococci within 10 min and required only a single colony for testing. All Lancefield Group B streptococci tested were positive for …
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WebbTests used for identification of Campylobacter spp. Gram stain 96 (89.7) Oxidase 92 (86) Catalase 70 (65.4) Hippurate hydrolysis 51 (47.7) Naladixic acid/cephalothin disk identification 21 (19.6) Indoxyl acetate 7 (6.5) Send to a reference laboratory 6 (5.6) Other, not specified 33 (30.8) Performs susceptibility testing 4 (3.7) Hippuric acid is hydrolyzed to benzoic acid and glycine by the enzymatic action of hippuricase. The addition of a ninhydrin reagent detects glycine. Ninhydrin reacts with glycine to form a deep blue or purple color (Ruhemann’s … Visa mer The hippurate test identifies Campylobacter jejuni, Listeria monocytogenes, Gardnerella vaginalis, and Streptococcus … Visa mer Test each new lot or shipment of the reagent with known positive and negative controls, and retest at least monthly. Discard all reagents and prepare new ones if the reagents … Visa mer meghan cleary ct
Hippurate test - VetBact
WebbFinally, all β-hemolytic, Gram-positive cocci, hippurate hydrolysis-positive, catalase-negative, and Christie-Atkins-Munch-Petersen test–positive isolates were reported as GBS. Statistical analysis. The data were double entered and cleaned using Epi-Data Version 3.1 and analyzed using STATA version 13. WebbThe specificity was the same for both tests at (50%). A significant difference in positivity between the CAMP and hippurate hydrolysis reactions (95% confidence limit, P<0.05) was observed. The predictive values of the positive test were 66.6% (CAMP) and 87.55% (hippurate hydrolysis) while the negative test were Webb15 juli 2001 · The conventional germ-tube test, in which microscopic visualization of the parallel-sided, non-pinched-off hyphal elements (germ tubes) that form in serum during the first 2 h of incubation at 35°C identifies C. albicans, is also considered among the rapid microbial identification tests. Cryptococcus neoformans usually yields mucoid colonies. meghan cleary facebook