Does my food have glucose?

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Presentation transcript:

Does my food have glucose? Measuring “Sweet” Does my food have glucose?

How Does it Measure Glucose? The reagent is a compound of copper sulfate (CuSO4) which reacts with glucose to form a precipitate (solid) Benedict’s = blue Benedict’s with Glucose = brick red

How Do I Use Benedict’s Solution? Mix small amount of each food sample with distilled water to make a test liquid.

How Do I Use Benedict’s Solution? 2. To a test tube, add 40 drops of liquid to be tested.

How Do I Use Benedict’s Solution? 3. Add 10 drops of Benedict's solution to each test tube. Carefully heat the test tubes by suspending in a hot water bath at about 40-50 degrees Celsius for five minutes.

How Do I Use Benedict’s Solution? 4. Note any color change. If sugar is present solution will turn green, yellow, or brick-red, depending on sugar concentration.