Preparation and Properties of Edible Packaging Film Based on Potato Starch
2015
Low price of potato starch as a wide range of sources of edible film substrate, glycerol as a plasticizer, pullulan as a film-forming agent, prepared by solution casting of potato starch-based edible environment-friendly packaging materials. Tests were run on potato starch-based edible films to determine mechanical properties, transparency and color evaluation. It was observed that the increase of the glycerol content in the films increased the macromolecular mobility, the potato starch films became less stiff and more flexible. Meanwhile the transparency and yellow index are both increased, obviously.
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