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Collagen

Published on Nov 24, 2015

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PRESENTATION OUTLINE

Collagen

ANGELA HAN & NATASHA DIETZ
Photo by seier+seier

General Awareness

  • Falsity of collagen-based product industry
  • Arthritis & cosmetics
  • Nutritional benefits

Discovery

  • Evidence of a regular structure
  • Search for the collagen monomer
Photo by Sabor Digital

Early Uses

  • Glue used as protective lining and to hold utensils together
  • Egyptians and Native Americans
Photo by Cheatcher PL

What is collagen?

  • Protein that makes up 25-35%
  • Important structurally and functionally
  • Half life of 117 years
  • Covalent with many hydrogen bonds
  • Triple helix structure, composed of glycine, proline, and hydroxyproline
  • C2H5NOC5H9NOC5H10NO2
Photo by jurvetson

Extraction Sources

  • Human
  • Bovine, porcine, equine, ovine sources
  • Found in bones, skin, muscles, & tendons

Role of Collagen

  • Structural support, strength, and elasticity
  • Protective coverings
  • Fibrous network in the dermis
  • Replacement and restoration of dead skin cells
Photo by kaibara87

Uses in Food

  • Soy, lemons (scurvy), dark green vegetables, red fruits, vitamin C, turkey, flaxseed
  • Gelatin (hydrolyzed collagen)
Photo by flatpix

Glycine [C2H5NO2]

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Proline [C5H9NO2]

Synthesis of Collagen

  • Biological synthesis
  • Genes specific to collagen type
  • mRNA processing
  • Translation
  • Post-translational modifications to pro-collagen
  • Crosslink formation
Photo by kyz

Collagen Worldwide

  • Worldwide demand in 2013 was 3.75 Kilo tons and had its major application in food industry
  • Europe is the largest collagen producing market, contributing 35% share of the total market
  • China has been the major consuming market, predicts double digit growth from 2015-2020
Photo by Ludovico Cera

Negative impacts/ Disadvantages

  • High cost of pure type I collagen
  • High risk in transmitting illnessess
Photo by djwtwo

Medical Importance

  • Skin fillers
  • Wound dressings
  • Tissue regeneration
  • Vascular prosthetics
  • Arthritis
  • Cosmetic products
Photo by WarzauWynn

Toxicity

  • Experimental toxicity in rabbits
  • Respiratory distress, agitation, convulsions, death
  • Damage occurred to lungs and liver of animals
Photo by liverpoolhls

Sources

Photo by crdotx

NCBI: http://www.ncbi.nlm.nih.gov/books/NBK21582/
Orthobullets http://www.orthobullets.com/basic-science/9013/collagen


Lagowski, J. J. "Collagen." Chemistry: Foundations and Applications. New York: Macmillan Reference USA, 2004. Print.

Photo by Tim Geers