Assay for Protein Case Study
I’m studying for my Biology class and need an explanation.
Activity 1: Biuret Assay for Protein
Table 1: Biuret Assay for Protein
Your Prediction | Actual Assay Results Description | Protein Present? (Yes/No) | Nutrition Label Information | |
PositiveControl (BSA) | Purple | |||
Negative Control (Water) | Light blue | |||
Milk | purple | |||
Apple Juice | Light blue | |||
Potato flakes | Light blue | |||
Gelatin | purple | |||
Egg White | purple |
Notes:
Activity 2:Lugol’s Iodine Test for Starch
Table 2: Lugol’s Test for Starch
Prediction | Assay Results Description | Starch Present? (Yes/No) | Nutrition Label Information | |
Positive Control (1% corn starch) | Dark Blue/black | |||
Negative Control (Water) | golden | |||
Milk | golden | |||
Apple Juice | golden | |||
Potato flakes | Dark blue/black | |||
Gelatin | golden | |||
Egg White | golden |
Notes:
Activity 3: Benedict’s Test for Reducing Sugars
Table 3: Benedicts Test for Reducing Sugars
Prediction | Assay Results Description | Sugar Present? (Yes/No) | Nutrition Label Information | |
Positive Control (10% Glucose) | Brick red color | |||
Negative Control (Water) | Light blue | |||
Milk | Orange-red color | |||
Apple Juice | Orange-red color | |||
Potato flakes | Yellow-green | |||
Gelatin | Light blue | |||
Egg White | Light blue |