3. If you do a dyalysis of cow milk, what should be the result of the protein test about your dialyzate in your dialysis lab? Indicate test name and color test result with positive or negative. (See the note above.) 4. What reagent can you be able to use for the reducing sugar and what could be the result of it with your dialyzate of cow milk dialysis? Indicate test name and color test result with positive or negative. (See the note above.) Testing for simple sugars: Benedict's Reagent Testing for starch: Lugol's lodine Left to right: Lugol's iodine (LI), starch solution, starch solution + LI. Left to right: Benedict's reagent (BNR), potato extract +BnR, onion extract + BnR, 5% glucose + BnR. RESULTS: Aqua-blue to green = negative. Yellow to orange = positive. Note: this test cannot detect the simple sugar sucrose. RESULTS: Yellow-orange = negative. Purple-black = positive. Testing for proteins: Biuret's Reagent Terminology review: Controls Water plus Biuret's reagent is a negative control for the protein test. It demonstrates a negative test result (no protein present). Egg albumin plus Biuret's reagent is a positive control for the protein test. It demonstrates a positive test result (protein is present) How would you set up similar controls for the other chemical tests? Left to right: Biuret's reagent (BrR), water + BrR, egg albumin solution, egg albumin solution+ BrR. RESULTS: Denim-blue = negative. Lavender = positive