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Shao J, Yang J, Jin W, Huang F, Xiao J, Chen Y, Chen H, Geng F, Peng D, Deng Q. Regulation of interfacial mechanics of soy protein via co-extraction with flaxseed protein for efficient fabrication of foams and emulsions. Food Res Int 2024; 175:113673. [PMID: 38129022 DOI: 10.1016/j.foodres.2023.113673] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2023] [Revised: 11/01/2023] [Accepted: 11/03/2023] [Indexed: 12/23/2023]
Abstract
Enrichment of plant proteins with functionality is of great importance for expanding their application in food formulations. This study proposed an innovation to co-enrich soy protein and flaxseed protein to act as efficient interfacial stabilizers for generating foams and emulsions. The structure, interfacial properties, and functionalities of the soy protein-flaxseed protein natural nanoparticles (SFNPs) obtained by alkali extraction-isoelectric precipitation (AE) and salt extraction-dialysis (SE) methods were investigated. Overall, the foamability of AE-SFNPs (194.67 %) was 1.45-fold that of SE-SFNPs, due to their more flexible structure, smaller particle size, and suitable surface wettability, promoting diffusion and adsorption at the air-water interface. AE-SFNPs showed higher emulsion stability (140.89 min), probably because the adsorbed AE-SFNPs with smaller size displayed soft particle-like properties and stronger interfacial flexibility, and therefore could densely and evenly arrange at the interface, facilitating the formation of a stiff and solid-like interfacial layer, beneficial for more stable emulsion formation. The findings may innovatively expand the applications of SFNPs as food ingredients.
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Affiliation(s)
- Jiaqi Shao
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China; College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, PR China
| | - Jing Yang
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Weiping Jin
- College of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, Hubei 430023, PR China
| | - Fenghong Huang
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Junxia Xiao
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, Shandong 266109, PR China
| | - Yashu Chen
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Hongjian Chen
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China
| | - Fang Geng
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, Sichuan, PR China
| | - Dengfeng Peng
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China.
| | - Qianchun Deng
- Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Research Center of Oil and Plant Protein Engineering Technology, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan, Hubei 430062, PR China.
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Kang S, Bai Q, Qin Y, Liang Q, Hu Y, Li S, Luan G. Film-forming properties and mechanisms of soy protein: Insights from β-conglycinin and glycinin. Int J Biol Macromol 2023; 253:127611. [PMID: 37879573 DOI: 10.1016/j.ijbiomac.2023.127611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 10/09/2023] [Accepted: 10/20/2023] [Indexed: 10/27/2023]
Abstract
Extensive research has been conducted on soy protein films; however, limited information is available regarding the influence of the major components, β-conglycinin (7S) and glycinin (11S), on the film-forming properties of soy protein. This study aimed to isolate the 7S and 11S fractions in order to prepare films and investigate the impact of varying 7S/11S ratios on the film-forming solutions (FFS) and film properties. The findings revealed that higher 11S ratios led to increased protein aggregation, consequently elevating the storage modulus (G') of the FFS. Notably, an optimal 7S/11S ratio of 7S1:11S2 (CF3) significantly enhanced the film's water resistance. Specifically, it enhanced the water contact angle by an impressive 17.44 % and reduced the water vapor transmission rate by 27.56 %. These improvements were attributed to intermolecular interactions, involving hydrogen bonds and salt bridges, between the amino acid residues of 7S and 11S. As a result, a more uniform and dense microstructure was achieved. Interestingly, the mechanical and optical properties of the film were maintained by the different protein fractions examined. In summary, this study contributes to the understanding of the film-forming properties of soy protein, particularly the role of 7S and 11S.
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Affiliation(s)
- Shufang Kang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Qinbo Bai
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yana Qin
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Qiuhong Liang
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China
| | - Yayun Hu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China.
| | - Shengkai Li
- Seed Station of Xining City, Xining 810016, China
| | - Guangzhong Luan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, China; Shaanxi Union Research Center of University and Enterprise for Grain Processing Technologies, Yangling 712100, China; Seed Station of Xining City, Xining 810016, China.
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Zhang H, Wu J, Cheng Y. Mechanical Properties, Microstructure, and In Vitro Digestion of Transglutaminase-Crosslinked Whey Protein and Potato Protein Hydrolysate Composite Gels. Foods 2023; 12:foods12102040. [PMID: 37238858 DOI: 10.3390/foods12102040] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Revised: 05/11/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023] Open
Abstract
The production of animal protein usually leads to higher carbon emissions than that of plant protein. To reduce carbon emissions, the partial replacement of animal protein with plant protein has attracted extensive attention; however, little is known about using plant protein hydrolysates as a substitute. The potential application of 2 h-alcalase hydrolyzed potato protein hydrolysate (PPH) to displace whey protein isolate (WPI) during gel formation was demonstrated in this study. The effect of the ratios (8/5, 9/4, 10/3, 11/2, 12/1, and 13/0) of WPI to PPH on the mechanical properties, microstructure, and digestibility of composite WPI/PPH gels was investigated. Increasing the WPI ratio could improve the storage modulus (G') and loss modulus (G″) of composite gels. The springiness of gels with the WPH/PPH ratio of 10/3 and 8/5 was 0.82 and 0.36 times higher than that of the control (WPH/PPH ratio of 13/0) (p < 0.05). In contrast, the hardness of the control samples was 1.82 and 2.38 times higher than that of gels with the WPH/PPH ratio of 10/3 and 8/5 (p < 0.05). According to the International Organization for Standardization of Dysphagia Diet (IDDSI) testing, the composite gels belonged to food level 4 in the IDDSI framework. This suggested that composite gels could be acceptable to people with swallowing difficulties. Confocal laser scanning microscopy and scanning electron microscopy images illustrated that composite gels with a higher ratio of PPH displayed thicker gel skeletons and porous networks in the matrix. The water-holding capacity and swelling ratio of gels with the WPH/PPH ratio of 8/5 decreased by 12.4% and 40.8% when compared with the control (p < 0.05). Analysis of the swelling rate with the power law model indicated that water diffusion in composite gels belonged to non-Fickian transport. The results of amino acid release suggested that PPH improved the digestion of composite gels during the intestinal stage. The free amino group content of gels with the WPH/PPH ratio of 8/5 increased by 29.5% compared with the control (p < 0.05). Our results suggested that replacing WPI with PPH at the ratio of 8/5 could be the optimal selection for composite gels. The findings indicated that PPH could be used as a substitute for whey protein to develop new products for different consumers. Composite gels could deliver nutrients such as vitamins and minerals to develop snack foods for elders and children.
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Affiliation(s)
- Haowei Zhang
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Juan Wu
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
| | - Yu Cheng
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
- Institute of Food Physical Processing, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, China
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Wu C, Liu Z, Zhi L, Jiao B, Tian Y, Liu H, Hu H, Ma X, Pignitter M, Wang Q, Shi A. Research Progress of Food-Grade High Internal Phase Pickering Emulsions and Their Application in 3D Printing. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:2949. [PMID: 36079986 PMCID: PMC9458105 DOI: 10.3390/nano12172949] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 08/24/2022] [Accepted: 08/24/2022] [Indexed: 06/15/2023]
Abstract
High internal phase Pickering emulsion (HIPPE) is a type of emulsion stabilized by solid particles irreversibly adsorbed on an interfacial film, and the volume fraction of the dispersed phase (Φ) is larger than the maximum packing volume fraction (Φmax). Proteins, polysaccharides, and their composite particles can be used as good particle stabilizers. The contact angle can most intuitively demonstrate the hydrophilicity and hydrophobicity of the particles and also determines the type of emulsions (O/W or W/O type). Particles' three-phase contact angles can be adjusted to about 90° by compounding or modification, which is more conducive to emulsion stability. As a shear thinning pseudoplastic fluid, HIPPE can be extruded smoothly through 3D printer nozzles, and its high storage modulus can support the structure of printed products. There is huge potential for future applications in 3D printing of food. This work reviewed the biomacromolecules that can be used to stabilize food-grade HIPPE, the stabilization mechanism of the emulsions, and the research progress of food 3D printing to provide a reference for the development of advanced food products based on HIPPE.
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Affiliation(s)
- Chao Wu
- College of Food Science and Engineering, Hebei Agricultural University, Baoding 071001, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Zhe Liu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Lanyi Zhi
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Bo Jiao
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Yanjie Tian
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Hongzhi Liu
- College of Food Science and Engineering, Hebei Agricultural University, Baoding 071001, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Hui Hu
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Xiaojie Ma
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Marc Pignitter
- Department of Physiological Chemistry, Faculty of Chemistry, University of Vienna, 1090 Vienna, Austria
| | - Qiang Wang
- College of Food Science and Engineering, Hebei Agricultural University, Baoding 071001, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
| | - Aimin Shi
- College of Food Science and Engineering, Hebei Agricultural University, Baoding 071001, China
- Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
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Qin X, Li L, Yu X, Deng Q, Xiang Q, Zhu Y. Comparative Composition Structure and Selected Techno-Functional Elucidation of Flaxseed Protein Fractions. Foods 2022; 11:foods11131820. [PMID: 35804636 PMCID: PMC9265867 DOI: 10.3390/foods11131820] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Revised: 05/31/2022] [Accepted: 06/16/2022] [Indexed: 02/04/2023] Open
Abstract
This study aimed to comparatively elucidate the composition structure and techno-functionality of flaxseed protein isolate (FPI), globulin (FG), and albumin (FA) fractions. The results showed that FA possessed smaller particle dimensions and superior protein solubility compared to that of FG (p < 0.05) due to the lower molecular weight and hydrophobicity. FA and FG manifested lamellar structure and nearly spherical morphology, respectively, whereas FPI exhibited small lamellar strip structure packed by the blurring spheres. The Far-UV CD, FTIR spectrum, and intrinsic fluorescence confirmed more flexible conformation of FA than that of FG, followed by FPI. The preferential retention of free phenolic acids was observed for FA, leading to excellent antioxidant activities compared with that of FG in FPI (p < 0.05). FA contributed to the foaming properties of FPI, relying on the earlier interfacial adsorption and higher viscoelastic properties. FA displayed favorable emulsifying capacity but inferior stability due to the limited interfacial adsorption and deformation, as well as loose/porous interface. By comparison, an interlayer anchoring but no direct interface coating was observed for lipid droplets constructed by FG, thereby leading to preferable emulsion stability. However, FPI produced lipid droplets with dense interface owing to the effective migration of FA and FG from bulk phase, concomitant with the easy flocculation and coalescence. Thus, the techno-functionality of flaxseed protein could be tailed by modulating the retention of albumin fraction and specific phenolic acids.
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Affiliation(s)
- Xiaopeng Qin
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (X.Q.); (L.L.); (Q.X.); (Y.Z.)
| | - Linbo Li
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (X.Q.); (L.L.); (Q.X.); (Y.Z.)
| | - Xiao Yu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (X.Q.); (L.L.); (Q.X.); (Y.Z.)
- Correspondence: (X.Y.); (Q.D.)
| | - Qianchun Deng
- Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
- Correspondence: (X.Y.); (Q.D.)
| | - Qisen Xiang
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (X.Q.); (L.L.); (Q.X.); (Y.Z.)
| | - Yingying Zhu
- College of Food and Bioengineering, Zhengzhou University of Light Industry, Zhengzhou 450002, China; (X.Q.); (L.L.); (Q.X.); (Y.Z.)
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