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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.<\/jats:p>","DOI":"10.2478\/adms-2025-0021","type":"journal-article","created":{"date-parts":[[2026,1,2]],"date-time":"2026-01-02T09:33:55Z","timestamp":1767346435000},"page":"64-76","source":"Crossref","is-referenced-by-count":0,"title":["The Morphology and Functional Properties of Thermoplastic Starch Films with Psyllium Husk (\n                    <i>Plantago ovata<\/i>\n                    ) Flour Addition"],"prefix":"10.2478","volume":"25","author":[{"given":"Karolina","family":"Beer-Lech","sequence":"first","affiliation":[{"name":"Department of Mechanical Engineering and Automatic Control , University of Life Sciences in Lublin , 28 G\u0142\u0119boka St ., Lublin , Poland"}]},{"given":"Anna","family":"Skic","sequence":"additional","affiliation":[{"name":"Department of Mechanical Engineering and Automatic Control , University of Life Sciences in Lublin , 28 G\u0142\u0119boka St ., Lublin , Poland"}]},{"given":"Kamil","family":"Skic","sequence":"additional","affiliation":[{"name":"Institute of Agrophysics, Polish Academy of Sciences , 4 Do\u015bwiadczalna St ., Lublin , Poland"}]},{"given":"Ana","family":"Amaro","sequence":"additional","affiliation":[{"name":"University of Coimbra , CEMMPRE-ARISE, Department of Mechanical Engineering ,, Rua Lu\u00eds Reis Santos, Pinhal de Moroucos , Coimbra Coimbra, Portugal"}]},{"given":"Ricardo","family":"Branco","sequence":"additional","affiliation":[{"name":"University of Coimbra , CEMMPRE-ARISE, Department of Mechanical Engineering ,, Rua Lu\u00eds Reis Santos, Pinhal de Moroucos , Coimbra Coimbra, Portugal"}]},{"given":"Maria Augusta","family":"Neto","sequence":"additional","affiliation":[{"name":"University of Coimbra , CEMMPRE-ARISE, Department of Mechanical Engineering ,, Rua Lu\u00eds Reis Santos, Pinhal de Moroucos , Coimbra Coimbra, Portugal"}]},{"given":"Miguel","family":"Pereira","sequence":"additional","affiliation":[{"name":"University of Coimbra , CEMMPRE-ARISE, Department of Mechanical Engineering ,, Rua Lu\u00eds Reis Santos, Pinhal de Moroucos , Coimbra Coimbra, Portugal"}]}],"member":"374","published-online":{"date-parts":[[2025,12,31]]},"reference":[{"key":"2026020317523083329_j_adms-2025-0021_ref_001","unstructured":"EU Directive 2019\/904 of the European Parliament and of the Council of 5 June 2019 on the Reduction of the Impact of Certain Plastic Products on the Environment (Text with EEA Relevance). 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