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Composites containing acetylated wheat B-starch for agriculture applications

Author

Listed:
  • E. Šárka

    (Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech Republic)

  • Z. Kruliš

    (Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • J. Kotek

    (Institute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic)

  • L. Růžek

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • K. Voříšek

    (Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech Republic)

  • J. Koláček

    (Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech Republic)

  • K. Hrušková

    (Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech Republic)

  • M. Růžková

    (Central Institute for Supervising and Testing in Agriculture, Brno, Czech Republic)

  • O. Ekrt

    (Department of Physics and Measurements, Faculty of Chemical Engineering, Institute of Chemical Technology Prague, Prague, Czech Republic)

Abstract

Native and acetylated B-starch was used in biodegradable films after blending with either poly-(ε-caprolactone) (PCL) or ethylene vinyl acetate copolymer (EVA). The following mechanical characteristics of prepared films were derived from the stress-strain curves: Young modulus, yield stress, stress-at-break and strain-at-break. Acetylation of starch molecules in the composites reduced the degradation rate in compost. Optical microscopy, combined with the image analysis system NIS-Elements completed with extended depth of focus (EDF) module, was used to study the PCL/starch and EVA/starch films surface morphology during composting. Parameters of the compost used for film exposition were measured.

Suggested Citation

  • E. Šárka & Z. Kruliš & J. Kotek & L. Růžek & K. Voříšek & J. Koláček & K. Hrušková & M. Růžková & O. Ekrt, 2012. "Composites containing acetylated wheat B-starch for agriculture applications," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 58(8), pages 354-359.
    • Handle: RePEc:caa:jnlpse:v:58:y:2012:i:8:id:287-2012-pse
    DOI: 10.17221/287/2012-PSE
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    References listed on IDEAS

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    1. Evžen Šárka & Zdeněk Kruliš & Jiří Kotek & Lubomír Růžek & Anna Korbářová & Zdeněk Bubník & Michaela Růžková, 2011. "Application of wheat B-starch in biodegradable plastic materials," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 29(3), pages 232-242.
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    Cited by:

    1. L. Růžek & M. Růžková & M. Koudela & L. Bečková & D. Bečka & Z. Kruliš & E. Šárka & K. Voříšek & Š. Ledvina & B. Šalounová & J. Venyercsanová, 2015. "Biodegradation of composites based on maltodextrin and wheat B-starch in compost," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 42(4), pages 209-214.

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    1. L. Růžek & M. Růžková & M. Koudela & L. Bečková & D. Bečka & Z. Kruliš & E. Šárka & K. Voříšek & Š. Ledvina & B. Šalounová & J. Venyercsanová, 2015. "Biodegradation of composites based on maltodextrin and wheat B-starch in compost," Horticultural Science, Czech Academy of Agricultural Sciences, vol. 42(4), pages 209-214.

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