Collagen - PowerPoint PPT Presentation

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Collagen

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Collagen : : Your Most Plentiful Protein 1/4 Protein Collagen Tendons resilient sheets Bones Teeth ... – PowerPoint PPT presentation

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Title: Collagen


1
Collagen
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2
Your Most Plentiful Protein
  • ?? 1/4 Protein ? Collagen
  • Tendons ?resilient sheets ?Bones?
  • Teeth ???

3
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

4
The Collagen Triple Helix
5
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.

6
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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11
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12
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