Collagen

1
Collagen

• Collagen can shrink to less than 33 of their
  original length at the temperature referred to as
  shrinkage temperature. This temperature is
  characteristic of species from which the collagen
  is derived. The shrinkage involves the collapse
  of tripple helical structure.
• The midpoint of collagen-to gelatin transition is
  defined as the melting temperature. Transition of
  collagen to gelatin involves breaking down both
  noncovalent bonds as well as some covalent bonds
  (Shiff bases and alsol condensation bonds).

2
Processing of collagen to gelatin involves

• Removal of non-collagenous material by acid or
  alkali
• Conversion of collagen to gelatin by heating in
  the presence of water
• Refining and Drying gelatin

3
(No Transcript)
4
Stiffness of gelatin gel depends on

• concentration of gelatin
• acidity
• sugar
• physical interference
• temperature
• presence of enzymes