The Influence of Starch Origin on the Properties of Starch Films: Packaging Performance
Division of Printing Technologies, Mechanics and Printing Institute, Faculty of Production Engineering, Warsaw University of Technology, Konwiktorska 2, 00-217 Warsaw, Poland
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Academic Editor: Loic Hilliou
Materials 2021, 14(5), 1146; https://doi.org/10.3390/ma14051146
Received: 18 January 2021
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Revised: 20 February 2021
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Accepted: 23 February 2021
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Published: 28 February 2021
(This article belongs to the Section Biomaterials)
Starch films can be used as materials for food packaging purposes. The goal of this study is to compare how the starch origin influence the selected starch film properties. The films were made from various starches such as that from maize, potato, oat, rice, and tapioca using 50%w of glycerine as a plasticizer. The obtained starch-based films were made using the well-known casting method from a starch solution in water. The properties of the films that were evaluated were tensile strength, water vapour transition rate, moisture content, wettability, and their surface free energy. Surface free energy (SFE) and its polar and dispersive components were calculated using the Owens-Wendt-Rabel-Kaelbe approach. The values of SFE in the range of 51.64 to 70.81 mJ∙m−2 for the oat starch-based film and the maize starch-based film. The films revealed worse mechanical properties than those of conventional plastics for packaging purposes. The results indicated that the poorest tensile strength was exhibited by the starch-based films made from oat (0.36 MPa) and tapioca (0.78 MPa) and the greatest tensile strength (1.49 MPa) from potato.
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MDPI and ACS Style
Żołek-Tryznowska, Z.; Kałuża, A. The Influence of Starch Origin on the Properties of Starch Films: Packaging Performance. Materials 2021, 14, 1146. https://doi.org/10.3390/ma14051146
AMA Style
Żołek-Tryznowska Z, Kałuża A. The Influence of Starch Origin on the Properties of Starch Films: Packaging Performance. Materials. 2021; 14(5):1146. https://doi.org/10.3390/ma14051146
Chicago/Turabian StyleŻołek-Tryznowska, Zuzanna, and Alicja Kałuża. 2021. "The Influence of Starch Origin on the Properties of Starch Films: Packaging Performance" Materials 14, no. 5: 1146. https://doi.org/10.3390/ma14051146
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