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Research article - Peer-reviewed, 2020

Bio-based films from wheat bran feruloylated arabinoxylan: Effect of extraction technique, acetylation and feruloylation

Yilmaz-Turan, Secil; Jimenez-Quero, Amparo; Menzel, Carolin; Carvalho, Danila Morais de; Lindstrom, Mikael E.; Sevastyanova, Olena; Moriana, Rosana; Vilaplana, Francisco


This study demonstrates the potential of feruloylated arabinoxylan (AX) from wheat bran for the preparation of bioactive barrier films with antioxidant properties. We have comprehensively evaluated the influence of the structural features and chemical acetylation of feruloylated AX extracted by subcritical water on their film properties, in comparison with alkaline extracted AX and a reference wheat endosperm AX. The degree of substitution (DS) of AX had a large influence on film formation, higher DS yielded better thermal and mechanical properties. The barrier properties of AX films were significantly enhanced by external plasticization by sorbitol. Chemical acetylation significantly improved the thermal stability but not the mechanical or barrier properties of the films. The presence of bound ferulic acid in feruloylated AX films resulted in higher antioxidant activity compared to external addition of free ferulic acid, which demonstrates their potential use in active packaging applications for the preservation of oxygen-sensitive foodstuff.


Arabinoxylan; Wheat bran; Subcritical water extraction; Ferulic acid; Acetylation; Barrier properties; Antioxidant activity

Published in

Carbohydrate Polymers
2020, volume: 250, article number: 116916

Authors' information

Yilmaz-Turan, Secil
Royal Institute of Technology
Jimenez-Quero, Amparo
Royal Institute of Technology
Menzel, Carolin
Royal Institute of Technology
Carvalho, Danila Morais de
University of Helsinki
Lindstrom, Mikael E.
Royal Institute of Technology
Sevastyanova, Olena
Royal Institute of Technology
Moriana, Rosana
Swedish University of Agricultural Sciences, Department of Molecular Sciences
Moriana, Rosana
Royal Institute of Technology (KTH)
Moriana, Rosana
RISE Research Institutes of Sweden
Vilaplana, Francisco
Royal Institute of Technology

UKÄ Subject classification

Polymer Chemistry

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