UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films
Casted whey protein films exposed to ultraviolet irradiation were analyzed for their cross-linking properties and mechanical and barrier performance. Expected mechanical and barrier improvements are discussed with regard to quantification of the cross-linking in the UV-treated whey protein films. Sw...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2017/1846031 |
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| _version_ | 1832556435837288448 |
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| author | Markus Schmid Tobias Konrad Prinz Kerstin Müller Andreas Haas |
| author_facet | Markus Schmid Tobias Konrad Prinz Kerstin Müller Andreas Haas |
| author_sort | Markus Schmid |
| collection | DOAJ |
| description | Casted whey protein films exposed to ultraviolet irradiation were analyzed for their cross-linking properties and mechanical and barrier performance. Expected mechanical and barrier improvements are discussed with regard to quantification of the cross-linking in the UV-treated whey protein films. Swelling tests were used to determine the degree of swelling, degree of cross-linking, and cross-linking density. When the UV radiation dosage was raised, a significant increase of the tensile strength as well as an increase in Young’s modulus was observed. No significant changes in water vapor and oxygen barrier properties between the UV-treated films and an untreated reference sample could be observed. The cross-linking density and the degree of cross-linking significantly increased due to UV radiation. Combined results indicate a disordered protein network in cast films showing locally free volume and therefore only minor mechanical and barrier improvements. |
| format | Article |
| id | doaj-art-b48d1761241c4c4eb5a108013771ecce |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-b48d1761241c4c4eb5a108013771ecce2025-02-03T05:45:27ZengWileyInternational Journal of Polymer Science1687-94221687-94302017-01-01201710.1155/2017/18460311846031UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based FilmsMarkus Schmid0Tobias Konrad Prinz1Kerstin Müller2Andreas Haas3Fraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Strasse 35, 85354 Freising, GermanyFraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Strasse 35, 85354 Freising, GermanyFraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Strasse 35, 85354 Freising, GermanyFraunhofer Institute for Process Engineering and Packaging IVV, Giggenhauser Strasse 35, 85354 Freising, GermanyCasted whey protein films exposed to ultraviolet irradiation were analyzed for their cross-linking properties and mechanical and barrier performance. Expected mechanical and barrier improvements are discussed with regard to quantification of the cross-linking in the UV-treated whey protein films. Swelling tests were used to determine the degree of swelling, degree of cross-linking, and cross-linking density. When the UV radiation dosage was raised, a significant increase of the tensile strength as well as an increase in Young’s modulus was observed. No significant changes in water vapor and oxygen barrier properties between the UV-treated films and an untreated reference sample could be observed. The cross-linking density and the degree of cross-linking significantly increased due to UV radiation. Combined results indicate a disordered protein network in cast films showing locally free volume and therefore only minor mechanical and barrier improvements.http://dx.doi.org/10.1155/2017/1846031 |
| spellingShingle | Markus Schmid Tobias Konrad Prinz Kerstin Müller Andreas Haas UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films International Journal of Polymer Science |
| title | UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films |
| title_full | UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films |
| title_fullStr | UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films |
| title_full_unstemmed | UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films |
| title_short | UV Radiation Induced Cross-Linking of Whey Protein Isolate-Based Films |
| title_sort | uv radiation induced cross linking of whey protein isolate based films |
| url | http://dx.doi.org/10.1155/2017/1846031 |
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