Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability
Gliadin nanoparticle (GNP) is a promising foaming agent, but its application is hindered by the limited foam stability under low acidic conditions. Herein, we attempted to tune the foam stability of GNP by coating it with flaxseed gum (FG) and investigated the structure, interfacial behaviors, and f...
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2024-10-01
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| author | Ping Wu Wei Shang Jiaqi Shao Qianchun Deng Jisong Zhou Xia Xiang Dengfeng Peng Weiping Jin |
| author_facet | Ping Wu Wei Shang Jiaqi Shao Qianchun Deng Jisong Zhou Xia Xiang Dengfeng Peng Weiping Jin |
| author_sort | Ping Wu |
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| description | Gliadin nanoparticle (GNP) is a promising foaming agent, but its application is hindered by the limited foam stability under low acidic conditions. Herein, we attempted to tune the foam stability of GNP by coating it with flaxseed gum (FG) and investigated the structure, interfacial behaviors, and foam functionality of gliadin-FG (GFG) particles at pH 4.5. Results showed that the formation of GFG complex particles was driven by an electrostatic interaction between positive charge patches on the surface of GNP (~17 mV) and negative charges in FG molecule (~−13 mV) at all tested ratios. The addition of appropriate amounts of FG (1:0.05) effectively improved the foam stability of GNP. This was because GFG with larger sizes and lower surface charge possessed higher rigidity after coating with FG. When they adsorbed at the air/water interface, their deformation process was slower than that of GNP, as indicated by interfacial dilatational rheology and cryo-SEM, and the covered particles seemed to be more closely distributed to form solid-like and dense interfacial films. Notably, the addition of FG at a higher ratio (1:0.3) promoted the foam stability of GNP by about five folds because the larger GFG with suitable flexibility and wettability could form a stiff interface layer with more significant elastic response, and the unabsorbed particles and FG could form a gel-like network structure in the continuous phase. These characteristics effectively prevented foam disproportionation and coalescence, as well as retard the drainage. Our findings demonstrate that coating GNPs with FG is an effective approach to improve their application in foamed foods. |
| format | Article |
| id | doaj-art-072f4ec409a947ce8b115103010d9ce9 |
| institution | OA Journals |
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| language | English |
| publishDate | 2024-10-01 |
| publisher | MDPI AG |
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| series | Gels |
| spelling | doaj-art-072f4ec409a947ce8b115103010d9ce92025-08-20T02:28:14ZengMDPI AGGels2310-28612024-10-01101167710.3390/gels10110677Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam StabilityPing Wu0Wei Shang1Jiaqi Shao2Qianchun Deng3Jisong Zhou4Xia Xiang5Dengfeng Peng6Weiping Jin7Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaKey Laboratory of Oilseeds Processing, Ministry of Agriculture, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, ChinaSchool of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, ChinaGliadin nanoparticle (GNP) is a promising foaming agent, but its application is hindered by the limited foam stability under low acidic conditions. Herein, we attempted to tune the foam stability of GNP by coating it with flaxseed gum (FG) and investigated the structure, interfacial behaviors, and foam functionality of gliadin-FG (GFG) particles at pH 4.5. Results showed that the formation of GFG complex particles was driven by an electrostatic interaction between positive charge patches on the surface of GNP (~17 mV) and negative charges in FG molecule (~−13 mV) at all tested ratios. The addition of appropriate amounts of FG (1:0.05) effectively improved the foam stability of GNP. This was because GFG with larger sizes and lower surface charge possessed higher rigidity after coating with FG. When they adsorbed at the air/water interface, their deformation process was slower than that of GNP, as indicated by interfacial dilatational rheology and cryo-SEM, and the covered particles seemed to be more closely distributed to form solid-like and dense interfacial films. Notably, the addition of FG at a higher ratio (1:0.3) promoted the foam stability of GNP by about five folds because the larger GFG with suitable flexibility and wettability could form a stiff interface layer with more significant elastic response, and the unabsorbed particles and FG could form a gel-like network structure in the continuous phase. These characteristics effectively prevented foam disproportionation and coalescence, as well as retard the drainage. Our findings demonstrate that coating GNPs with FG is an effective approach to improve their application in foamed foods.https://www.mdpi.com/2310-2861/10/11/677gliadinflaxseed gumparticle flexibilitygel-like network structureair/water interfaceLissajous plots |
| spellingShingle | Ping Wu Wei Shang Jiaqi Shao Qianchun Deng Jisong Zhou Xia Xiang Dengfeng Peng Weiping Jin Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability Gels gliadin flaxseed gum particle flexibility gel-like network structure air/water interface Lissajous plots |
| title | Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability |
| title_full | Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability |
| title_fullStr | Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability |
| title_full_unstemmed | Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability |
| title_short | Tuning the Interfacial Deformation of Gliadin-Flaxseed Gum Complex Particles for Improving the Foam Stability |
| title_sort | tuning the interfacial deformation of gliadin flaxseed gum complex particles for improving the foam stability |
| topic | gliadin flaxseed gum particle flexibility gel-like network structure air/water interface Lissajous plots |
| url | https://www.mdpi.com/2310-2861/10/11/677 |
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