Collagen

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Collagen

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Your Most Plentiful Protein

• ?? 1/4 Protein ? Collagen
• Tendons ?resilient sheets ?Bones?
• Teeth ???

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The Collagen Triple Helix

• Collagen is composed of three chains, wound
  together in a tight triple helix.
• A repeated sequence of three amino acids forms
  this structure.
• Every third amino acid is glycine?proline?hydroxyp
  roline

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The Collagen Triple Helix
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Vitamin C

• Hydroxyproline, which is critical for collagen
  stability, is created by modifying normal proline
  amino acids after the collagen chain is built.
  The reaction requires vitamin C to assist in the
  addition of oxygen.

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Collagen on the Grocery Shelf

• Collagen from livestock animals is a familiar
  ingredient for cooking. Like most proteins, when
  collagen is heated, it loses all of its
  structure. The triple helix unwinds and the
  chains separate. Then, when this denatured mass
  of tangled chains cools down, it soaks up all of
  the surrounding water like a sponge.

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