Fermentation – Flashcards
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Fermentation tube
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Used to detect acid and gas production from carbohydrates.
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MRVP test
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Used to distinguish organisms that produce large amounts of acid from glucose and organisms that produce the neutral product acetoin. MRVP medium is a glucose-supplemented nutrient broth used for the methyl red (MR) test and the Voges-Proskauer (V-P) test.
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Citrate agar
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Useful in identifying bacteria that can ferment citrate.
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If organism metabolized glucose aerobically, what results will occur in the fermentatin tubes?
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Increase acid production, turning it yellow, and production of gas.
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If bacterium cannot ferment glucose, why not test its ability to ferment other carbohydrates?
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Glucose is the simplest sugar and other sugars are more complex.
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If bacterium cannot use glucose, what result will occur in a fermentation tube?
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Tube will stay the same color but gas may occur.
