| 单词 | methyl red test |
| 释义 | methyl red testmethyl red test[′meth·əl ¦red ‚test]methyl red testmethyl red testA colorimetric test for differentiating Enterobacteriaceae.Method An inoculum of bacteria is placed in a buffered glucose-peptone broth; the MRT is based on a change in pH, and usually results in the opposite reaction as that of the Voges-Proskauer test—therefore Enterobacter aerogenes, which is positive in the VPT, serves as a negative control in the MRT. Escherichia coli is positive (red) at 48 hours, Enterobacter aerogenes is negative. |
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