Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light
Scope: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the subsequent recombination of the resulting polysacchar...
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| Format: | Article |
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MDPI AG
2023-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/13/4/2360 |
| _version_ | 1797622555853455360 |
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| author | Ewelina Nowak Anna Wisła-Świder Teresa Leszczyńska Aneta Koronowicz |
| author_facet | Ewelina Nowak Anna Wisła-Świder Teresa Leszczyńska Aneta Koronowicz |
| author_sort | Ewelina Nowak |
| collection | DOAJ |
| description | Scope: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the subsequent recombination of the resulting polysaccharide radicals during prolonged irradiation. Methods and Results: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The HPSEC-MALLS-RI method was used to measure the weight-average molecular weights of the starch polysaccharide chains and the distribution of the amylopectin side chains. FTIR spectroscopy of the modified samples and a study of the starch surface morphology were conducted using a scanning electron microscope. However, an increase in both the rate constant of the first stage of hydrolysis (k<sub>1</sub>) and its final level were demonstrated. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the subsequent recombination of the resulting polysaccharide radicals during prolonged irradiation. Conclusions: Changes in starch granules could influence some of their functional properties. Rearrangement in the polysaccharide chains could obtain novel starches with defined properties. |
| first_indexed | 2024-03-11T09:11:58Z |
| format | Article |
| id | doaj.art-606a9c4fca4b4c0ab5572320f3c87b74 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-11T09:11:58Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-606a9c4fca4b4c0ab5572320f3c87b742023-11-16T18:54:38ZengMDPI AGApplied Sciences2076-34172023-02-01134236010.3390/app13042360Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV LightEwelina Nowak0Anna Wisła-Świder1Teresa Leszczyńska2Aneta Koronowicz3Faculty of Food Technology, University of Agriculture, Al. Mickiewicza 21, 31-120 Cracow, PolandFaculty of Food Technology, University of Agriculture, Al. Mickiewicza 21, 31-120 Cracow, PolandFaculty of Food Technology, University of Agriculture, Al. Mickiewicza 21, 31-120 Cracow, PolandFaculty of Food Technology, University of Agriculture, Al. Mickiewicza 21, 31-120 Cracow, PolandScope: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the subsequent recombination of the resulting polysaccharide radicals during prolonged irradiation. Methods and Results: Aqueous suspensions of spelt and wheat starch were irradiated with ultraviolet radiation for 5–50 h. The HPSEC-MALLS-RI method was used to measure the weight-average molecular weights of the starch polysaccharide chains and the distribution of the amylopectin side chains. FTIR spectroscopy of the modified samples and a study of the starch surface morphology were conducted using a scanning electron microscope. However, an increase in both the rate constant of the first stage of hydrolysis (k<sub>1</sub>) and its final level were demonstrated. The changes in the molecular structure of the starch induced by UV radiation were related to the photodegradation of starch chains and the subsequent recombination of the resulting polysaccharide radicals during prolonged irradiation. Conclusions: Changes in starch granules could influence some of their functional properties. Rearrangement in the polysaccharide chains could obtain novel starches with defined properties.https://www.mdpi.com/2076-3417/13/4/2360HPSEChydrolysismolecular weightspeltstarchesUV radiation |
| spellingShingle | Ewelina Nowak Anna Wisła-Świder Teresa Leszczyńska Aneta Koronowicz Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light Applied Sciences HPSEC hydrolysis molecular weight spelt starches UV radiation |
| title | Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light |
| title_full | Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light |
| title_fullStr | Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light |
| title_full_unstemmed | Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light |
| title_short | Physicochemical and Molecular Properties of Spelt and Wheat Starches Illuminated with UV Light |
| title_sort | physicochemical and molecular properties of spelt and wheat starches illuminated with uv light |
| topic | HPSEC hydrolysis molecular weight spelt starches UV radiation |
| url | https://www.mdpi.com/2076-3417/13/4/2360 |
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