Composites containing acetylated wheat B-starch for agriculture applications
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-...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Czech Academy of Agricultural Sciences
2012-08-01
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| Series: | Plant, Soil and Environment |
| Subjects: | |
| Online Access: | https://pse.agriculturejournals.cz/artkey/pse-201208-0003_composites-containing-acetylated-wheat-b-starch-for-agriculture-applications.php |
| _version_ | 1797898256178479104 |
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| author | E. Šárka Z. Kruliš J. Kotek L. Růžek K. Voříšek J. Koláček K. Hrušková M. Růžková O. Ekrt |
| author_facet | E. Šárka Z. Kruliš J. Kotek L. Růžek K. Voříšek J. Koláček K. Hrušková M. Růžková O. Ekrt |
| author_sort | E. Šárka |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-10T08:10:28Z |
| format | Article |
| id | doaj.art-0cfc5d0147bd411ab66cde1fc1ad2a31 |
| institution | Directory Open Access Journal |
| issn | 1214-1178 1805-9368 |
| language | English |
| last_indexed | 2024-04-10T08:10:28Z |
| publishDate | 2012-08-01 |
| publisher | Czech Academy of Agricultural Sciences |
| record_format | Article |
| series | Plant, Soil and Environment |
| spelling | doaj.art-0cfc5d0147bd411ab66cde1fc1ad2a312023-02-23T03:45:52ZengCzech Academy of Agricultural SciencesPlant, Soil and Environment1214-11781805-93682012-08-0158835435910.17221/287/2012-PSEpse-201208-0003Composites containing acetylated wheat B-starch for agriculture applicationsE. Šárka0Z. Kruliš1J. Kotek2L. Růžek3K. Voříšek4J. Koláček5K. Hrušková6M. Růžková7O. Ekrt8Department of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech RepublicInstitute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech RepublicInstitute of Macromolecular Chemistry, Academy of Sciences of the Czech Republic, Prague, Czech RepublicFaculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicFaculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague, Czech RepublicDepartment of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech RepublicDepartment of Carbohydrates and Cereals, Faculty of Food and Biochemical Technology, Institute of Chemical Technology Prague, Prague, Czech RepublicCentral Institute for Supervising and Testing in Agriculture, Brno, Czech RepublicDepartment of Physics and Measurements, Faculty of Chemical Engineering, Institute of Chemical Technology Prague, Prague, Czech RepublicNative 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.https://pse.agriculturejournals.cz/artkey/pse-201208-0003_composites-containing-acetylated-wheat-b-starch-for-agriculture-applications.phpbiodegradable plasticpolycaprolactoneethylene vinyl acetate copolymerimage analysisgreen waste compost |
| spellingShingle | E. Šárka Z. Kruliš J. Kotek L. Růžek K. Voříšek J. Koláček K. Hrušková M. Růžková O. Ekrt Composites containing acetylated wheat B-starch for agriculture applications Plant, Soil and Environment biodegradable plastic polycaprolactone ethylene vinyl acetate copolymer image analysis green waste compost |
| title | Composites containing acetylated wheat B-starch for agriculture applications |
| title_full | Composites containing acetylated wheat B-starch for agriculture applications |
| title_fullStr | Composites containing acetylated wheat B-starch for agriculture applications |
| title_full_unstemmed | Composites containing acetylated wheat B-starch for agriculture applications |
| title_short | Composites containing acetylated wheat B-starch for agriculture applications |
| title_sort | composites containing acetylated wheat b starch for agriculture applications |
| topic | biodegradable plastic polycaprolactone ethylene vinyl acetate copolymer image analysis green waste compost |
| url | https://pse.agriculturejournals.cz/artkey/pse-201208-0003_composites-containing-acetylated-wheat-b-starch-for-agriculture-applications.php |
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