Brin asked in Science & MathematicsBiology · 1 decade ago

Fermentation Question?

How would you determine whether a bacterium fermented the following carbohydrates: mannitol, sorbitol, adonitol, or arabinose?

1 Answer

Relevance
  • Egg
    Lv 4
    1 decade ago
    Favorite Answer

    Grow them in a broth that has those carbohydrates as the sole carbohydrate source. Use phenol red as a pH indicator. Fermentation will result in acid waste production which will turn the broths yellow. If they stay red or orange, the carbohydrates were not fermented.

Still have questions? Get your answers by asking now.