Question

What happens to collagen when boiled in water at
normal pressure and temperature?

Answer 1

Answer:

Heat does not damage collagen supplements - provided you're cooking at a reasonable temperature. Collagen proteins keep their integrity up to 572°F (300°C) by folding and unfolding in response to the changing heat. Above 572°F, collagen undergoes a type of degradation that's irreversible.

Explanation:

Answer 2

Shortening of the Length of Collagen

Explanation:

• The first change to occur by heating collagen is the shortening of the length of collagen.
• Boiling at normal temperatures and pressure does not damage collagen unless we are providing a reasonable temperature.  
• At higher temperatures, there is the conversion of collagen to gelatin.
• Collagen proteins undergo changes at 572°F (300°C).  
• Above 572°F, collagen proteins undergo a degradation that cannot be reversed.