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Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer

Author

Listed:
  • Petronela Nechita

    (Department of Environmental, Applied Engineering and Agriculture, Dunarea de Jos University of Galati, 817112 Braila, Romania)

  • Mirela Roman

    (Doctoral School of Fundamental and Engineering Sciences, Dunarea de Jos University of Galati, 817112 Braila, Romania)

  • Alina Cantaragiu Ceoromila

    (Cross-Border Faculty, Dunarea de Jos University of Galati, 47 Domneasca Street, 800008 Galati, Romania)

  • Andreea Veronica Dediu Botezatu

    (Department of Chemistry Physical and Environment, Faculty of Sciences and Environment, Dunarea de Jos University of Galati, 800201 Galati, Romania)

Abstract

In order to improve the hydrophobicity of xylan hemicellulose, a simple procedure of its chemical modification with alkyl ketene dimer (AKD), a non-toxic, cost-effective, and eco-friendly chemical, was performed. For this purpose, the reaction products of beech wood xylan and different amounts of hydrophobic AKD were used for paper surface treatment. Thus, the coatings of about 4.5 g/m 2 were applied on both sides of base paper in single and three successive layers. To obtain a complete reaction between AKD and xylan hemicellulose, the coated papers were thermal cured (about 110 °C) and the effects of AKD content on the barrier (water, oil, and water vapours) and mechanical properties were analysed. The structural analyses by scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR) of coated samples emphasized the presence of β-keto-ester compounds as a result of the reaction between xylan hemicelluloses and AKD. This is confirmed by the improving of barrier properties as the AKD content in coating dispersion is higher. The good barrier performance and improved strength properties were obtained for the coated papers with xylan hemicellulose and 1% AKD applied on paper surface in three successive layers (about 4.5 g/m 2 ). In this case, the water vapours transmission rate (WVTR) was 35% lower than those untreated and the resistance to air passing through coated papers was over 3 times higher compared with base paper. There are no results reported on the chemical reaction of xylan hemicelluloses with AKD as well as its application in coatings for paper packaging. In this context, the obtained results in this study can contribute to expand the applications area of hemicelluloses offering a sustainable strategy for the developing of food packaging papers with appropriate barrier properties using biopolymer coating materials.

Suggested Citation

  • Petronela Nechita & Mirela Roman & Alina Cantaragiu Ceoromila & Andreea Veronica Dediu Botezatu, 2022. "Improving Barrier Properties of Xylan-Coated Food Packaging Papers with Alkyl Ketene Dimer," Sustainability, MDPI, vol. 14(23), pages 1-14, December.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:23:p:16255-:d:994606
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    References listed on IDEAS

    as
    1. Qaseem, Mirza Faisal & Shaheen, Humaira & Wu, Ai-Min, 2021. "Cell wall hemicellulose for sustainable industrial utilization," Renewable and Sustainable Energy Reviews, Elsevier, vol. 144(C).
    2. Petronela Nechita & Roman Mirela & Florin Ciolacu, 2021. "Xylan Hemicellulose: A Renewable Material with Potential Properties for Food Packaging Applications," Sustainability, MDPI, vol. 13(24), pages 1-16, December.
    3. Tian, Zeshan & Zhang, Renfeng & Liu, Yuxin & Xu, Jiasai & Zhu, Xinliang & Lei, Tingyao & Li, Kai, 2021. "Hemicellulose-based nanocomposites coating delays lignification of green asparagus by introducing AKD as a hydrophobic modifier," Renewable Energy, Elsevier, vol. 178(C), pages 1097-1105.
    4. Rodica Mihaela Dinica & Cristina Sandu & Andreea Veronica Dediu Botezatu & Anna Cazanevscaia Busuioc & Fanica Balanescu & Maria Daniela Ionica Mihaila & Caterina Nela Dumitru & Bianca Furdui & Alina V, 2021. "Allantoin from Valuable Romanian Animal and Plant Sources with Promising Anti-Inflammatory Activity as a Nutricosmetic Ingredient," Sustainability, MDPI, vol. 13(18), pages 1-18, September.
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