Original Albumen
Posted in antique photos by admin
on October 7, 2008
Develop a hypothesis to explain why the egg whites will not recover their original characteristics when removed from the BOF
Develop a hypothesis to explain why the egg whites will not recover their original characteristics when are removed from the heat or acid. Procedure: Prepare a stock solution of albumin by adding the white of an egg and 100 ml of water distilled into a beaker. Stir until the albumin is in solution. (Note: Albumin is the term used to describe different protein components of egg white) Place 5 mL of albumin in each of the four test tubes. Label the tubes A, B, C, D. Treat the four solutions as follows: Tube A-Let stand at room temperature. Measure temperature. Determine the pH with pH paper. Tube B - Heat the tube in a water bath boiling for 10 minutes. Tube C - Add 2 mL of HCl 1M. Determine the pH of the solution. D-tube add 5 drops of 2% AgNO3 (silver salt of heavy metals). If no change in the appearance of albumin, continue adding AgNO3 dropwise until a change is observed.
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