Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum
Xanthan gum is prone to thermal oxidative degradation, which limits its applications. However, conformational changes in xanthan gum and appropriate stabilizers may improve its thermal stability. Therefore, in this study, we aimed to establish a strategy to maintain the viscosity of xanthan gum duri...
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MDPI AG
2022-01-01
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| Series: | Polymers |
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| Online Access: | https://www.mdpi.com/2073-4360/14/2/243 |
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| author | Shuai Yuan Jiayuan Liang Yanmin Zhang Hongyu Han Tianyi Jiang Yang Liu Yonggang Zhang Wei Wang Xueqian Dong |
| author_facet | Shuai Yuan Jiayuan Liang Yanmin Zhang Hongyu Han Tianyi Jiang Yang Liu Yonggang Zhang Wei Wang Xueqian Dong |
| author_sort | Shuai Yuan |
| collection | DOAJ |
| description | Xanthan gum is prone to thermal oxidative degradation, which limits its applications. However, conformational changes in xanthan gum and appropriate stabilizers may improve its thermal stability. Therefore, in this study, we aimed to establish a strategy to maintain the viscosity of xanthan gum during long-term storage at high temperatures. We modified the original strain used for xanthan gum production by genetic engineering and added stabilizers during the production process. The structure and thermal stability of the resulting xanthan gum samples were then determined. Pyruvyl deficiency, combined with the addition of sodium sulfite and glyoxal during the production process, was found to significantly improve the maintenance of viscosity. The apparent viscosity of the new xanthan gum solution remained above 100 mPa·s after being stored at 90 °C for 48 days. Fourier-transform infrared spectra and scanning electron microscopy images showed that pyruvate-free xanthan gum with added stabilizers had more extensive cross-linking than natural xanthan gum. In conclusion, these findings may contribute to the use of xanthan gum in applications that require high temperatures for a long period of time. |
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| institution | Directory Open Access Journal |
| issn | 2073-4360 |
| language | English |
| last_indexed | 2024-03-10T00:40:48Z |
| publishDate | 2022-01-01 |
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| series | Polymers |
| spelling | doaj.art-f9b89b8be4ef46c3878cede6a1eae7bf2023-11-23T15:08:25ZengMDPI AGPolymers2073-43602022-01-0114224310.3390/polym14020243Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan GumShuai Yuan0Jiayuan Liang1Yanmin Zhang2Hongyu Han3Tianyi Jiang4Yang Liu5Yonggang Zhang6Wei Wang7Xueqian Dong8School of Bioengineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Municipal and Environmental Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaSchool of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan 250353, ChinaXanthan gum is prone to thermal oxidative degradation, which limits its applications. However, conformational changes in xanthan gum and appropriate stabilizers may improve its thermal stability. Therefore, in this study, we aimed to establish a strategy to maintain the viscosity of xanthan gum during long-term storage at high temperatures. We modified the original strain used for xanthan gum production by genetic engineering and added stabilizers during the production process. The structure and thermal stability of the resulting xanthan gum samples were then determined. Pyruvyl deficiency, combined with the addition of sodium sulfite and glyoxal during the production process, was found to significantly improve the maintenance of viscosity. The apparent viscosity of the new xanthan gum solution remained above 100 mPa·s after being stored at 90 °C for 48 days. Fourier-transform infrared spectra and scanning electron microscopy images showed that pyruvate-free xanthan gum with added stabilizers had more extensive cross-linking than natural xanthan gum. In conclusion, these findings may contribute to the use of xanthan gum in applications that require high temperatures for a long period of time.https://www.mdpi.com/2073-4360/14/2/243xanthan gumthermal stabilitygenetically engineeringpyruvylglyoxal |
| spellingShingle | Shuai Yuan Jiayuan Liang Yanmin Zhang Hongyu Han Tianyi Jiang Yang Liu Yonggang Zhang Wei Wang Xueqian Dong Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum Polymers xanthan gum thermal stability genetically engineering pyruvyl glyoxal |
| title | Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum |
| title_full | Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum |
| title_fullStr | Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum |
| title_full_unstemmed | Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum |
| title_short | Evidence from Thermal Aging Indicating That the Synergistic Effect of Glyoxal and Sodium Sulfite Improved the Thermal Stability of Conformational Modified Xanthan Gum |
| title_sort | evidence from thermal aging indicating that the synergistic effect of glyoxal and sodium sulfite improved the thermal stability of conformational modified xanthan gum |
| topic | xanthan gum thermal stability genetically engineering pyruvyl glyoxal |
| url | https://www.mdpi.com/2073-4360/14/2/243 |
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