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• During the sucrose fermentation test, a color change indicating acid production is more meaningful than no color change in

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-The purpose is to see if the microbe can ferment the carbohydrate sucrose as a carbon source.
-If sucrose is fermented to produce acid end products, the pHof the medium will drop. A pH indicator in the medium changes color to indicate acid production. then it shows positive results .
- if there is no colour then the test is negative results .

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