The Morphology and Functional Properties of Thermoplastic Starch Films with Psyllium Husk (Plantago ovata) Flour Addition

Karolina Beer-Lech; Anna Skic; Kamil Skic; Ana Amaro; Ricardo Branco; Maria Augusta Neto; Miguel Pereira

doi:10.2478/adms-2025-0021

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The Morphology and Functional Properties of Thermoplastic Starch Films with Psyllium Husk (Plantago ovata) Flour Addition

Advances in Materials Science

Volume 25 (2025): Issue 4 (December 2025)

By: Karolina Beer-Lech, Anna Skic, Kamil Skic, Ana Amaro, Ricardo Branco, Maria Augusta Neto and Miguel Pereira

Open Access

|Dec 2025

Abstract

This study examines the influence of psyllium husk flour (PF) on the structure and physical properties of thermoplastic starch (TPS) films. Films with 2 g and 6 g PF were produced using the casting method. Their morphology was analyzed by stereoscopic, scanning electron, and atomic force microscopy, while mechanical and wettability properties were evaluated. Increasing PF content improved impact strength but also increased brittleness. Higher PF concentration raised the water contact angle and reduced its change over time. The results indicate that psyllium husk flour effectively enhances the functional performance of TPS films, supporting their potential for sustainable packaging applications.

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Articles in this issue

DOI: https://doi.org/10.2478/adms-2025-0021 | Journal eISSN: 2083-4799 | Journal ISSN: 1730-2439

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Language: English

Page range: 64 - 76

Submitted on: Aug 4, 2025

Accepted on: Dec 1, 2025

Published on: Dec 31, 2025

Published by: Gdansk University of Technology

In partnership with: Paradigm Publishing Services

Publication frequency: 4 issues per year

Keywords:

TPS/psyllium husk flour films,

mechanical properties,

water contact angle

Related subjects:

Materials sciences,

Functional and smart materials

© 2025 Karolina Beer-Lech, Anna Skic, Kamil Skic, Ana Amaro, Ricardo Branco, Maria Augusta Neto, Miguel Pereira, published by Gdansk University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Volume 25 (2025): Issue 4 (December 2025)