Describe the appearance of the protein solutions in each of the tubes after addition of the alkaloidal reagents.
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By alkaloidal reagent
Place 3mL of egg albumin solution in each of the two test tubes, to one tube add 1 – 2 ml of tannic acid solution and to other one picric acid. Describe the appearance of the protein solutions in each of the tubes after addition of the alkaloidal reagents.
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- Which is the commonly occurring sugar in milk? Will the milk containing this sugar gives a positive result for the test " Detection of sugar in Milk"?What does translucent spot mean with regards to lipid? Identify the control for this test. 1. Oil 2. Cheese 3. Water 4. CheeseIf saliva alone tests positive for either starch or glucose in both Benedict's Test and Iodine Test, how would that affect the interpretation of the results for a tube containing saliva + potato chip?
- Give the chemical principles involved in a positive Biuret test, Millon’s Test and Sakaguchi Test. What is the chemical basis of the Ninhydrin Test, Hopkins – Cole test and Sulfur reaction test? What chemical structure should be present in an amino acid or protein to give a positive Xanthoproteic test?What is the purpose of Biuret’s test? In biuret’s test, does the color in each test tube containing the sample vary? Why or why not?Using 25 μL of serum, how much diluent would be needed to create a 1:2 dilution? ______ μL
- What is the color results of tyrosine,phenylalanine,alanine in millon test? Results and reference plsThe table below summarizes the results for Millon's test. Provide the correct remarks from the results if Negative for Millon's Test or Positive for Millon's Test and if Contains phenolic hydroxy group or Does not contains phenolic hydroxy group.Place 3 mL of egg albumin solution in each of the two test tubes. To one test tubes add 5 drops of mercuric chloride and to another test tubes add 5 drops of silver nitrate. Does precipitate form? Add excess reagent and note whether the precipitate is increased or dissolved. Describe the results.