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Step-by-Step Tutorial
PRACTICAL WALKTHROUGH · PARAMETERS · COMMON MISTAKES
Edible packaging film extrusion is a continuous process that transforms starch or protein feedstocks into thin, flexible films suitable for food packaging.
Origin: Japanese and Swedish research communities (1990s) — Japan and Sweden
See full technique reference →During extrusion, starch or protein polymers are melted and plasticized by heat and shear, forming a homogeneous melt that is shaped into a film. The addition of plasticizers such as glycerol lowers the glass transition temperature, enhancing flexibility, while controlled residence time and temperature prevent thermal degradation of the polymers.
Primary Reaction
Melting and plasticization of starch/protein polymers
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