When testing for starch, protein,fat and sugar in a mixture of protein and sugar what are the results in colour
1. Starch: The addition of iodine to the mixture will result in a blue-black color if starch is present.
2. Protein: The addition of Biuret reagent to the mixture will result in a violet color if protein is present.
3. Fat: The addition of a Sudan III stain to the mixture will result in the fatty component turning red if fat is present.
4. Sugar: The addition of Benedict's solution to the mixture and heating will result in a color change from blue to orange/red if sugar is present.