[Answer] How is fermentation of lactose detected?

Answer: The drop in pH turns the indicator dye yellow.

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How is fermentation of lactose detected? What to Eat to Reduce Lactic Acid During a Workout ... How the Test is Performed Lactose tolerance tests: MedlinePlus Medical Encyclopedia Can you add lactose after primary fermentation ... Lactose intolerance - Symptoms and causes - Mayo Clinic How is fermentation of lactose detected ? A. The acetoin produced turns the medium pink. B. The cells form a black precipitant. C. The medium become turbid when exposed to air. D. The drop in pH turns the indicator dye yellow. How is lactose fermentation determined ? If lactose is fermented to produce acid end products the p H of the medium will drop. A p H indicator in the medium changes color to indicate acid production. Common end-products of bacterial fermentation include lactic acid formic acid acetic acid butyric acid butyl alcohol acetone ethyl alcohol carbondioxide and hydrogen. The production of the acid lower the pH of the test medium which is detected by the color change of the pH indicator . Gases detected on your breath provide evidence of this fermentation and thus evide...

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