What is the significance of color during negative hydrolisis urea test for E. coli?
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Color plays a crucial role in the identification of E. coli during various diagnostic tests. Different chromogenic substrates and media have been developed to exploit the unique color changes associated with E. coli metabolism. For instance, E. coli can be differentiated from other urinary pathogens based on color changes in chromogenic media, where E. coli colonies turn blue due to the cleavage of a specific substrate. This color specificity aids in the direct and rapid identification of E. coli without the need for additional confirmatory tests, enhancing the efficiency of diagnostic procedures. Similarly, in another study, the detection of E. coli through the hydrolysis of substrates resulted in distinct color changes, enabling the visualization and quantification of the bacteria.
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13 Citations | Color is crucial in negative urea hydrolysis tests for E. coli, aiding in distinguishing strains. The paper-based diagnostic system utilizes colorimetric analysis for accurate E. coli assessments. |
Open access 01 Jan 2005 | The color change in the negative hydrolysis urea test for E. coli is significant as it helps differentiate E. coli from other urinary pathogens, aiding in its rapid identification on chromogenic media. |
| The color pink is significant during a negative urea hydrolysis test for E. coli, aiding in its direct identification on ChromID CPS® and UriSelect4® chromogenic media. | |
10 Citations | Color is crucial in the detection of E. coli through β-Gal hydrolysis, enabling visualization using CdTe QDs and NMM, aiding in identifying the pathogen in clinical samples. |
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