1
|
Zhang Y, Zhao J, He L, Zhu J, Zhu Y, Jin G, Cai R, Li X, Li C. Irradiation-Assisted Enhancement of Foaming and Thermal Gelation Functionality of Liquid Egg White. Foods 2024; 13:1342. [PMID: 38731713 PMCID: PMC11083238 DOI: 10.3390/foods13091342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024] Open
Abstract
Ionizing radiation has its unique popularity as a non-thermal decontamination technique treating with protein-rich foodstuffs to ensure the microbial and sensory quality, particularly for shell eggs. However, the changes in the functional properties of egg protein fractions such as liquid egg white (LEW) with macro/microstructural information are still controversial. Hence, this study was designed to elaborate the foaming and heat-set gelation functionality of LEW following different γ-ray irradiation dose treatments (0, 1, 3 or 5 kGy). For such, the physicochemical properties (active sulfhydryl and the hydrophobicity of protein moieties), structural characteristics (through X-ray diffraction, Fourier-transform infrared spectroscopy and differential scanning calorimetry) and interfacial activities (rheological viscosity, interfacial tension, microrheological performance) were investigated. Then, the thermal gelation of LEW in relation to the texture profile and microstructure (by means of a scanning electron microscope) was evaluated followed by the swelling potency analysis of LEW gel in enzyme-free simulated gastric juice. The results indicated that irradiation significantly increased the hydrophobicity of liquid egg white proteins (LEWPs) (p < 0.05) by exposing non-polar groups and the interfacial rearrangement from a β-sheet to linear and smaller crystal structure, leading to an enhanced foaming capacity. Microstructural analysis revealed that the higher dose irradiation (up to 5 kGy) could promote the proteins' oxidation of LEW alongside protein aggregates formed in the amorphous region, which favored heat-set gelation. As evidenced in microrheology, ≤3 kGy irradiation provided an improved viscoelastic interface film of LEW during gelatinization. Particularly, the LEW gel treated with 1 kGy irradiation had evident swelling resistance during the times of acidification at pH 1.2. These results gave new insight into the irradiation-assisted enhancement of foaming and heat-set gelation properties of LEW.
Collapse
Affiliation(s)
- Yan Zhang
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jianying Zhao
- Department of Tea and Food Science and Technology, Jiangsu Vocational College of Agriculture and Forestry, Jurong 212400, China
| | - Lichao He
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Jin Zhu
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Yue Zhu
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Guofeng Jin
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
| | - Ruihang Cai
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou 325005, China
| | - Xiaola Li
- Zhejiang Institute of Subtropical Crops, Zhejiang Academy of Agricultural Sciences, Wenzhou 325005, China
| | - Chengliang Li
- Key Laboratory of Geriatric Nutrition and Health (Ministry of Education), China Food Flavor and Nutrition Health Innovation Center, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
- College of Food Science & Technology, Huazhong Agricultural University, Wuhan 430070, China
| |
Collapse
|
2
|
Hu G, Zhao B, Ma L, Yao X, Li S, Harlina PW, Wang J, Geng F. Inhibition of water-diluted precipitate formation from egg whites by ultrasonic pretreatment: Insights from quantitative proteomics analysis. Int J Biol Macromol 2024; 262:129973. [PMID: 38325697 DOI: 10.1016/j.ijbiomac.2024.129973] [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: 01/05/2024] [Revised: 01/25/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
The formation of the egg white precipitate (EWP) during dilution poses challenges in food processing. In this paper, the effects of 90 W and 360 W ultrasonic intensities on the inhibition of EWP formation were investigated. The findings revealed that 360 W sonication effectively disrupted protein aggregates, decreasing the dry matter of EWP by 5.24 %, particle size by 57.86 %, and viscosity by 82.28 %. Furthermore, the ultrasonic pretreatment unfolded protein structures and increased the content of β-sheet structures. Combined with quantitative proteomics and intermolecular forces analysis, the mechanism by which ultrasonic pretreatment inhibited water-diluted EWP formation by altering protein interactions was proposed: ultrasonic pretreatment disrupted electrostatic interactions centered on lysozyme, as well as hydrogen-bonding interactions between ovomucin and water. In conclusion, our research provides valuable insights into the application of ultrasonic pretreatment as a means to control and improve the quality of egg white-based products.
Collapse
Affiliation(s)
- Gan Hu
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China; Institute for Advanced Study, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Bingye Zhao
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Lulu Ma
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Xuan Yao
- College of food science and technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Shugang Li
- School of Food and Biological Engineering, Hefei University of Technology, Hefei 230009, China
| | - Putri Widyanti Harlina
- Department of Food Industrial Technology, Faculty of Agro-Industrial Technology, Universitas Padjadjaran, 45363 Bandung, Indonesia
| | - Jinqiu Wang
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Fang Geng
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China.
| |
Collapse
|
3
|
Pu J, Zhao B, Liu X, Li S, Wang B, Wu D, Wang J, Geng F. Quantitative proteomic analysis of chicken egg white and its components. Food Res Int 2023; 170:113019. [PMID: 37316084 DOI: 10.1016/j.foodres.2023.113019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Revised: 05/17/2023] [Accepted: 05/19/2023] [Indexed: 06/16/2023]
Abstract
The protein profiles and properties of chicken egg white and its three components (thick egg white, TKEW; thin egg white, TNEW; and chalaza, CLZ) were comprehensively compared. The proteomes of TNEW and TKEW are relatively similar, but the abundance of mucin-5B and mucin-6 (the two subunits of ovomucin) is significantly higher in TKEW than in TNEW (42.97% and 870.04%, respectively), while the lysozymes in TKEW are 32.57% higher (p < 0.05) than those in TNEW. Meanwhile, the properties (including the spectroscopy, viscosity, and turbidity) of TKEW and TNEW are significantly different. Comprehensively, it is speculated that the electrostatic interactions between lysozyme and ovomucin are the main reason for the high viscosity and turbidity of TKEW. Compared with egg white sample (EW), CLZ has a higher abundance of insoluble proteins (mucin-5B, 4.23-fold; mucin-6, 6.89-fold) and a lower abundance of soluble proteins (ovalbumin-related protein X, 89.35% lower than EW; ovalbumin-related protein Y, 78.51% lower; ovoinhibitor, 62.08% lower; riboflavin-binding protein, 93.67% lower). These compositional differences should explain the insolubility of CLZ. These findings are important references for deepening the research and development of egg white in the future, such as the thinning of egg white, the molecular basis of changes in egg white properties, and the differential application of TKEW and TNEW.
Collapse
Affiliation(s)
- Jing Pu
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Bingye Zhao
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Xin Liu
- Engineering Research Center of Bio-process (Ministry of Education), Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Shugang Li
- Engineering Research Center of Bio-process (Ministry of Education), Key Laboratory for Agricultural Products Processing of Anhui Province, School of Food and Biological Engineering, Hefei University of Technology, Hefei 230601, China
| | - Beibei Wang
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Di Wu
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Jinqiu Wang
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China
| | - Fang Geng
- Institute for Egg Science and Technology, School of Food and Biological Engineering, Chengdu University, No. 2025 Chengluo Avenue, Chengdu 610106, China.
| |
Collapse
|
4
|
Bermudez-Aguirre D, Niemira BA. A review on egg pasteurization and disinfection: Traditional and novel processing technologies. Compr Rev Food Sci Food Saf 2023; 22:756-784. [PMID: 36537903 DOI: 10.1111/1541-4337.13088] [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: 08/24/2022] [Revised: 11/15/2022] [Accepted: 11/17/2022] [Indexed: 12/24/2022]
Abstract
Salmonella Enteritidis is a pathogen related to many foodborne outbreaks involving eggs and egg products. Regulations about whether eggs should be pasteurized are very different and inconsistent worldwide. In the United States, eggs are not required to be pasteurized. Hence, less than 3% of the eggs in the country are pasteurized. The standard pasteurization method (57°C, 57.5 min) uses a long thermal process that increases the cost of the product and affects its quality. Foodborne outbreaks can be reduced if eggs are properly pasteurized to inactivate Salmonella spp. However, the technology to pasteurize eggs needs to offer a faster and more reliable method that can be scaled up to industry settings at a low cost and without affecting product quality. Several novel technologies have been tested for eggshell disinfection and egg pasteurization. Some thermal technologies have been evaluated for the pasteurization of eggs. Microwave has limited penetration depth and is a technical challenge for egg pasteurization. However, radio frequency can penetrate eggshells effectively to inactivate Salmonella, considerably reduce processing time, and maintain the quality of the product. Nonthermal technologies such as ultraviolet, pulsed light, cold plasma, ozone, pressure carbon dioxide, electrolyzed water, and natural antimicrobials have been explored for surface cleaning of the intact egg as alternatives without affecting the internal quality. This review presents some of these novel technologies and the current challenges. It discusses the possible combination of factors to achieve the egg's internal pasteurization and the eggshell's disinfection without affecting the quality at a low cost for the consumer.
Collapse
Affiliation(s)
- Daniela Bermudez-Aguirre
- USDA-ARS, Eastern Regional Research Center, Food Safety and Intervention Technologies Unit, Wyndmoor, PA, USA
| | - Brendan A Niemira
- USDA-ARS, Eastern Regional Research Center, Food Safety and Intervention Technologies Unit, Wyndmoor, PA, USA
| |
Collapse
|
5
|
Wang Z, Zhao H, Tao H, Yu B, Cui B, Wang Y. Ultrasound improves the physicochemical and foam properties of whey protein microgel. Front Nutr 2023; 10:1140737. [PMID: 37113296 PMCID: PMC10126503 DOI: 10.3389/fnut.2023.1140737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2023] [Accepted: 03/14/2023] [Indexed: 04/29/2023] Open
Abstract
Whey protein microgel (WPM) is an emerging multifunctional protein particle and methods to improve its functional properties are continuously being explored. We developed a method to prepare WPM by heat-induced self-assembly under different ultrasound power (160, 320, 480, and 640 W/cm2) and characterized the particle size, surface hydrophobicity, disulfide bond, viscosity, and foam properties of WPM. Ultrasound increased the particle size of WPM-160 W to 31 μm. However, the increase in ultrasound power gradually reduced the average particle size of samples. The intrinsic fluorescence spectrum showed that ultrasound unfolded the structure of whey protein and exposed more hydrophobic groups, which increased the surface hydrophobicity of WPM. In addition, infrared spectroscopy suggested ultrasound decreased the α-helix content of WPM, implying an increase in the flexibility of protein molecules. The disulfide bond of WPM was broken by ultrasound, and the content of the-SH group increased correspondingly. The rheology indicated that the apparent viscosity decreased with the increase of ultrasonic power. Compared with the control, the ultrasonicated WPM displayed higher foam ability. Ultrasound improved the foam stability of WPM-160 W but destroyed the foam stability of other samples. These results suggest that proper ultrasound treatment can improve the physicochemical and foam properties of WPM.
Collapse
Affiliation(s)
- Zhaoxin Wang
- College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
| | - Haibo Zhao
- College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
| | - Haiteng Tao
- College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
| | - Bin Yu
- College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- *Correspondence: Bin Yu,
| | - Bo Cui
- College of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong, China
- Bo Cui,
| | - Yan Wang
- College of Food and Biological Engineering, Qiqihar University, Qiqihar, Heilongjiang, China
| |
Collapse
|
6
|
Application of egg white hydrolysate (EWH) to improve frothing functionality of pasteurized liquid egg in large quantity production. Heliyon 2022; 9:e12697. [PMID: 36632096 PMCID: PMC9826854 DOI: 10.1016/j.heliyon.2022.e12697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 01/02/2023] Open
Abstract
Sterilized Liquid Eggs (SLE) are convenient for the baking process by minimizing the food safety risks of fresh eggs. Although these advantages were encouraging, the thermal effects of the pasteurization process had a negative impact on the functionality of the egg whites, thus making them unattractive to the food industry. Therefore, our previous study found that adding 1-5% egg white hydrolysate (EWH) contributed to the foaminess and stability in SLE. This primary purpose of this study was to confirm the feasibility of applying the optimum concentration of EWH for simultaneous evaluation and shelf life for batch production of SLE. The physical characteristics of the foam were analyzed by adding 1 ± 0.2% of EWH to SLE, and it was found that the foam with 1% EWH had better stability (low drainage), better viscosity, and similar distribution of foam bubbles size in the microstructure. No Salmonella infection has been found during the shelf life of 7 days. In addition, the highest overall acceptability has obtained using the large quantity produced SLE with 1% EWH to produce spoon cookies, followed by sensory evaluation. The cross-sectional height of the cookie and the distribution of holes in the structure were in line with those of the non-sterilized liquid egg white (NSLE). Hence, adding 1% EWH was found to the optimum concentration, which provides good foaming performance and stability of SLE. This study conveys a positive assessment to SLE producers and potential users, as it will increase their profitability economically while meeting the market challenges.
Collapse
|
7
|
Foaming and Physicochemical Properties of Commercial Protein Ingredients Used for Infant Formula Formulation. Foods 2022; 11:foods11223710. [PMID: 36429303 PMCID: PMC9689407 DOI: 10.3390/foods11223710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2022] [Revised: 11/16/2022] [Accepted: 11/17/2022] [Indexed: 11/22/2022] Open
Abstract
Protein, as one of the main ingredients for infant formula, may be closely related to the undesirable foam formed during the reconstitution of infant formula. Demineralized whey powder (D70 and D90), whey protein concentrate (WPC), and skimmed milk powder (SMP) are the four protein ingredients commonly used in infant formula formulation. The foaming and physicochemical properties of these four protein ingredients from different manufacturers were analyzed in the present study. Significant differences (p < 0.05) in foaming properties were found between the samples from different manufacturers. SMP showed a highest foaming capacity (FC) and foam stability (FS), followed by D70, D90, and WPC. Although the protein composition was similar based on reducing SDS-PAGE, the aggregates varied based on non-reducing SDS-PAGE, probably resulting in the different foaming properties. Particle size, zeta potential, and solubility of the protein ingredients were assessed. The protein structure was evaluated by circular dichroism, surface hydrophobicity, and free sulfhydryl. Pearson’s correlation analysis demonstrated that FC and FS were positively correlated with random coil (0.55 and 0.74), β-turn (0.53 and 0.73), and zeta potential (0.55 and 0.51) but negatively correlated with β-strand (−0.56 and −0.71), free sulfhydryl (−0.56 and −0.63), particle size (−0.45 and −0.53), and fat content (−0.50 and −0.49). The results of this study could provide a theoretical guidance for reducing formation of foam of infant formula products during reconstitution.
Collapse
|
8
|
Insight into Effects of high Intensity Ultrasound Treatment on Foamability and Physicochemical Properties of Frozen egg White Protein. FOOD BIOPHYS 2022. [DOI: 10.1007/s11483-022-09764-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
9
|
Jin H, Jin Y, Pan J, Sun Y, Sheng L. Multidimensional evaluation of structural properties of ovalbumin at the air-water interface: Spectroscopy and molecular dynamics simulations. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107809] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
10
|
Yang C, Zhu X, Zhang Z, Yang F, Wei Y, Zhang Z, Yang F. Heat treatment of quinoa (Chenopodium quinoa Willd.) albumin: Effect on structural, functional, and in vitro digestion properties. Front Nutr 2022; 9:1010617. [PMID: 36185662 PMCID: PMC9520662 DOI: 10.3389/fnut.2022.1010617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 08/29/2022] [Indexed: 11/13/2022] Open
Abstract
Quinoa seeds are rich in protein, polyphenols, phytosterols, and flavonoid substances, and excellent amino acid balance that has been revisited recently as a new food material showing potential applied in fitness and disease prevention. Heat treatment is one of the most effective strategies for improving the physiochemical characteristics of a protein. However, research examining the effects of temperature on quinoa albumin (QA) properties is limited. In this study, QA was subjected to thermal treatment (50, 60, 70, 80, 90, 100, and 121°C). SDS−PAGE revealed that QA is composed of several polypeptides in the 10−40 kDa range. Amino acid (AA) analysis showed that the branched-chain amino acids (BCAAs), negatively charged amino acid residues (NCAAs), and positively charged amino acids (PCAAs) contents of QA were more than double that of the FAO/WHO reference standard. Additionally, heating induced structural changes, including sulfhydryl-disulfide interchange and the exposure of hydrophobic groups. Scanning electron microscopy demonstrated that the albumin underwent denaturation, dissociation, and aggregation during heating. Moreover, moderate heat treatment (60, 70, and 80°C) remarkably improved the functional properties of QA, enhancing its solubility, water (oil) holding capacity, and emulsification and foaming characteristics. However, heating also reduced the in vitro digestibility of QA. Together, these results indicate that heat treatment can improve the structural and functional properties of QA. This information has important implications for optimizing quinoa protein production, and various products related to quinoa protein could be developed. which provides the gist of commercial applications of quinoa seeds for spreading out in the marketplace.
Collapse
Affiliation(s)
- Chao Yang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Xijin Zhu
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Zhaoyun Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Farong Yang
- Animal Husbandry, Pasture and Green Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Yuming Wei
- Animal Husbandry, Pasture and Green Agriculture Institute, Gansu Academy of Agricultural Sciences, Lanzhou, China
| | - Zhen Zhang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
| | - Fumin Yang
- College of Food Science and Engineering, Gansu Agricultural University, Lanzhou, China
- *Correspondence: Fumin Yang,
| |
Collapse
|
11
|
Yi S, Wu Q, Tong S, Wang W, Li X, Mi H, Xu Y, Li J. Thermal aggregation behavior of egg white protein and blue round scad (Decapterus maruadsi) myofibrillar protein. J Food Sci 2022; 87:3900-3912. [PMID: 35894520 DOI: 10.1111/1750-3841.16255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 06/12/2022] [Accepted: 06/27/2022] [Indexed: 01/17/2023]
Abstract
In the present study, egg white protein (EWP) and myofibrillar protein (MP) were mixed in different ratios (0/100, 10/90, 20/80, 30/70, 40/60, 50/50, 100/0 for EWP/MP) and subjected to unheated, preheated (40°C/30 min), two-step heated (40°C/30 min, 90°C/20 min), and one-step heated (90°C/20 min) treatments to study the thermal aggregation of the two proteins. Their aggregation behavior was characterized by turbidity, active sulfhydryl, degree of protein cross-linking, protein characteristic spectra, and microscopic morphology. The results indicated that for the mixed protein system composed of EWP and MP, the mixed protein aggregation volume was larger and regular at an EWP/MP of 30/70, when the degree of cross-linking was best. When the ratio of EWP/MP was 50/50, the aggregate-protein interaction was dominant, and the excess EWP acted as a barrier to cross-linking and wrapped around the surface of the aggregates to form larger aggregates. Comparing the two-step heated and one-step heated conditions, the former is superior. PRACTICAL APPLICATION: The combination of egg white protein and myofibrillar protein can provide a theoretical reference for the protein content in surimi products, and moderate addition has an enhancing effect on surimi protein cross-linking and promotes gel formation. Excessive addition will form aggregates outside the egg white protein wrapping phenomenon, and the quality of surimi gel products will be affected.
Collapse
Affiliation(s)
- Shumin Yi
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Qi Wu
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Shengnan Tong
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Wei Wang
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Xuepeng Li
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Hongbo Mi
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Yongxia Xu
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Jianrong Li
- National & Local Joint Engineering Research Center of Storage, Processing and Safety Control Technology for Fresh Agricultural and Aquatic Products, National R&D Branch Center of Surimi and Surimi Products Processing, National and Local United Engineering Lab of Marine Functional Food, Collaborative Innovation Center of Seafood Deep Processing, College of Food Science and Technology, Bohai University, Jinzhou, China
| |
Collapse
|