Plasticizers for Zein: Their Effect on Tensile Properties Serbia

  • Plasticizers for Zein: Their Effect on Tensile Properties Serbia
  • Plasticizers for Zein: Their Effect on Tensile Properties Serbia
  • Plasticizers for Zein: Their Effect on Tensile Properties Serbia
  • How do you make zein based films?
  • Zein-based films blended with oleic acid (Z-OA) and zein-based films blended with oleic acid and xanthan gum (Z-OA-XG) were prepared by adding 20% (by mass per volume) zein to 95% aqueous ethanol during 5 min of mechanical stirring at (65±0.5) °C.
  • Does adding hydrocolloid affect Zein-oleic acid blend film opacity?
  • The effect of adding a hydrocolloid on the structural, mechanical and barrier properties of zein-based blend films is evaluated. Zein-oleic acid blend film with added xanthan gum (Z-OA-XG) showed higher water solubility (13.09%) and opacity (8.49 AU/mm) than zein-oleic acid (Z-OA) film (10.80% and 5.19 AU/mm, respectively).
  • How xanthan gum structure influenced Zein-oleic acid blend films?
  • Both films had glossy and homogeneous structure with comparable water vapour and oxygen barrier properties around 4.39·10 –11 and 1.82·10 –13 g/ (Pa·s·m), respectively. Based on that, xanthan gum structure influenced mainly mechanical and light barrier properties of zein-oleic acid blend films.
  • Which biodegradable film has a better water vapour barrier?
  • Based on that, the Z-OA and Z-OA-XG blend films exhibited a better water vapour barrier property than other biodegradable films as a consequence of their higher hydrophobicity. Similarly to WVP, oxygen permeability (OP) indicates the oxygen transfer between the packaged product and the surroundings.

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