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In vitro Synthesis of Native, Fibrous Long Spacing and Segmental Long Spacing Collagen
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Changes to collagen structure during leather processing.

Katie H Sizeland1, Richard L Edmonds, Melissa M Basil-Jones

  • 1School of Engineering and Advanced Technology, Massey University , Private Bag 11222, Palmerston North, New Zealand.

Journal of Agricultural and Food Chemistry
|February 7, 2015
PubMed
Summary
This summary is machine-generated.

Leather processing alters collagen fibril structure, impacting material properties. This study reveals how hydration and thickness changes during leather production affect collagen fibril orientation and spacing.

Keywords:
collagenleatherorientationsmall angle X-ray scattering

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Area of Science:

  • Materials Science
  • Biochemistry
  • Textile Engineering

Background:

  • Leather production involves chemical and physical transformations of hides and skins.
  • The structural basis of these changes at the collagen fibril level is not fully understood.
  • Understanding these changes is crucial for optimizing leather properties.

Purpose of the Study:

  • To investigate the structural changes in collagen fibrils during leather processing.
  • To quantify changes in fibril orientation and D-spacing.
  • To correlate structural alterations with processing stages and material properties.

Main Methods:

  • Utilized synchrotron-based small-angle X-ray scattering (SAXS).
  • Analyzed eight processing stages from fresh ovine skins to dry crust leather.
  • Quantified fibril orientation index (OI) and D-spacing.

Main Results:

  • Both collagen fibril D-spacing and orientation changed significantly during processing.
  • Leather thickness influenced fibril orientation index (OI).
  • Hydration state was a key factor, with dry materials showing less orientation and smaller D-spacing compared to wet materials.

Conclusions:

  • Leather processing induces significant structural changes in collagen fibrils.
  • Hydration and thickness are critical factors influencing collagen fibril organization and D-spacing.
  • This research provides insights into structure-property relationships in leather development.