New biocomposites based on bioplastic flax fibers and biodegradable polymers

Authors

  • Magdalena Wróbel-Kwiatkowska,

    1. Len Pharma, Zamkowa 17, 82-200 Malbork, Poland
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  • Magdalena Czemplik,

    1. Len Pharma, Zamkowa 17, 82-200 Malbork, Poland
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  • Anna Kulma,

    1. Linum Foundation, Stabłowicka Wrocław, Poland
    2. Faculty of Biotechnology, University of Wrocław, Przybyszewskiego 63/77, 51-148, Wrocław, Poland
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  • Magdalena Żuk,

    1. Linum Foundation, Stabłowicka Wrocław, Poland
    2. Faculty of Biotechnology, University of Wrocław, Przybyszewskiego 63/77, 51-148, Wrocław, Poland
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  • Jacek Kaczmar,

    1. Laboratory of Polymers, Institute of Mechanical Engineering and Automation, Wrocław University of Technology, Wyb. Wyspiańskiego 27, 50-370 Wrocław, Poland
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  • Lucyna Dymińska,

    1. Dept. of Bioorganic Chemistry, Institute of Chemistry and Food Technology, Faculty of Engineering and Economy, University of Economic, Komandorska 118/120, 53-345 Wrocław, Poland
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  • Jerzy Hanuza,

    1. Dept. of Bioorganic Chemistry, Institute of Chemistry and Food Technology, Faculty of Engineering and Economy, University of Economic, Komandorska 118/120, 53-345 Wrocław, Poland
    2. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland
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  • Maciej Ptak,

    1. Institute of Low Temperature and Structure Research, Polish Academy of Sciences, Okólna 2, 50-422 Wrocław, Poland
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  • Jan Szopa

    Corresponding author
    1. Linum Foundation, Stabłowicka Wrocław, Poland
    2. Faculty of Biotechnology, University of Wrocław, Przybyszewskiego 63/77, 51-148, Wrocław, Poland
    • Linum Foundation, Stabłowicka Wrocław, Poland
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Abstract

A new generation of entirely biodegradable and bioactive composites with polylactic acid (PLA) or poly-ε-caprolactone (PCL) as the matrix and bioplastic flax fibers as reinforcement were analyzed. Bioplastic fibers contain polyhydroxybutyrate and were obtained from transgenic flax. Biochemical analysis of fibers revealed presence of several antioxidative compounds of hydrophilic (phenolics) and hydrophobic [cannabidiol (CBD), lutein] nature, indicating their high antioxidant potential. The presence of CBD and lutein in flax fibers is reported for the first time. FTIR analysis showed intermolecular hydrogen bonds between the constituents in composite PLA+flax fibers which were not detected in PCL-based composite. Mechanical analysis of prepared composites revealed improved stiffness and a decrease in tensile strength. The viability of human dermal fibroblasts on the surface of composites made of PLA and transgenic flax fibers was the same as for cells cultured without composites and only slightly lower (to 9%) for PCL-based composites. The amount of platelets and Escherichia coli cells aggregated on the surface of the PLA based composites was significantly lower than for pure polymer. Thus, composites made of PLA and transgenic flax fibers seem to have bacteriostatic, platelet anti-aggregated, and non-cytotoxic effect. © 2012 American Institute of Chemical Engineers Biotechnol. Prog., 2012

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