Question

Advice for the prevention of blood stains in fabric is to immediately use cold water to rinse the blood away and to not let the blood dry. Use the biochemical principals surrounding protein structure, folding, and denaturation to explain why this method works to prevent blood stains. Your answer should involve biochemical concepts taught in the course and be at a level of detail appropriate to this course. In your answer you should address both the use of cold water and not letting the blood dry

Answer 1

# Protein does not stay in native configuration for longer time period in room tepmperature. They tend to denature soon. Storing proteins such as enzymes at - 20 degree celcius make them to be active for a long time. Cold temperature preserves the native conformation of the protein molecules for longer time period.

Blood contains lot of protein molecules in it. That is why it is advised to rinse the blood stain with cold water before it gets denatured. Cold water will not only maintain the configuration but also remove the stain.