1
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Liu L, Bi J, Chi Y, Chi Y. Effects of pasteurization temperature and amino acids on the gelation behavior of liquid egg yolk: Emphasizing rheology, gel properties, intermolecular forces and microstructure. Food Chem 2024; 463:141508. [PMID: 39378724 DOI: 10.1016/j.foodchem.2024.141508] [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: 03/30/2024] [Revised: 07/30/2024] [Accepted: 09/30/2024] [Indexed: 10/10/2024]
Abstract
Pipeline blockage caused by liquid egg yolk (LEY) in the pasteurization process has become an urgent problem for egg industry. This study investigated the effects of amino acids (betaine/proline) on rheology of LEY and gel property of egg yolk gel (EYG) at various pasteurization temperatures (68, 72, and 76 °C). Rheological results revealed that 72 °C was the key transition point for increase in LEY thermal aggregation rate. Average particle size of EYG, BEYG and PEYG increased by 63.9 %, 27.3 % and 17.3 % with increasing pasteurization temperature. Amino acids promoted increase in disulfide bonding content and facilitated retention of free and bound water within gels. Moreover, amino acids enhanced crystallinity and order of gel structures. Amino acids can effectively mitigate thermal aggregation of LEY at mild temperatures and promote cross-linking of gel network at high temperatures. This study provides a theoretical foundation for heat resistance of LEY and application of EYG.
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Affiliation(s)
- Lan Liu
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Jiahui Bi
- College of Food Science, Northeast Agricultural University, Harbin 150030, China
| | - Yujie Chi
- College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Yuan Chi
- College of Engineering, Northeast Agricultural University, Harbin 150030, China.
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2
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Zheng M, Chen S, Yao Y, Wu N, Xu M, Zhao Y, Tu Y. A review on the development of pickled eggs: rapid pickling and quality optimization. Poult Sci 2023; 102:102468. [PMID: 36682130 PMCID: PMC9876998 DOI: 10.1016/j.psj.2022.102468] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 12/28/2022] [Accepted: 12/28/2022] [Indexed: 01/02/2023] Open
Abstract
Pickled eggs enjoy a long processing history with unique flavor and rich nutrition but suffer from long pickling cycle due to the limitations of traditional processing methods. In terms of quality, salted egg whites have the disadvantage of high sodium content, and salted egg yolks have problems such as hard core and black circle around outer layer. Likewise, the quality of preserved eggs is challenged by the black spots (dots) on the eggshells and the high content of heavy metals in the egg contents. The sustainable development of traditional pickled eggs are hindered by these defects and extensive research has been carried out in recent years. Based on the elaboration of the quality formation mechanism of salted eggs and preserved eggs, this paper reviewed the processing principles and applications of rapid pickling technologies like ultrasonic technology, magnetoelectric-assisted technology, water cycle technology, vacuum decompression technology, and pulsed pressure technology, as well as the quality optimization methods such as controlling the sodium content of the salted egg whites, improving the quality of salted egg yolks, promoting the quality of lead-free preserved eggs, and developing heavy metal-free preserved eggs. In the end, the future development trend of traditional pickled eggs was summarized and prospected in order to provide theoretical guidance for the actual production.
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Affiliation(s)
- Mengting Zheng
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Shuping Chen
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yao Yao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Na Wu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Mingsheng Xu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yan Zhao
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang, 330045, China; Agricultural Products Processing and Quality Control Engineering Laboratory of Jiangxi, Jiangxi Agricultural University, Nanchang 330045, China; Jiangxi Experimental Teaching Demonstration Center of Agricultural Products Storage and Processing Engineering, Jiangxi Agricultural University, Nanchang 330045, China.
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3
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Xin X, Zhang G, Xue H, Qiu W, Hu H, Tu Y, Zhao Y. Effects of ethanol treatment on the physicochemical properties, microstructure and protein structures of egg yolk gels. Food Chem 2023; 405:135041. [DOI: 10.1016/j.foodchem.2022.135041] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 11/05/2022] [Accepted: 11/20/2022] [Indexed: 11/26/2022]
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4
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Tan J, Deng C, Yao Y, Wu N, Du H, Xu M, Chen S, Zhao Y, Tu Y. Effects of different copper salts on the physicochemical properties, microstructure and intermolecular interactions of preserved egg white. Food Chem 2023; 404:134756. [DOI: 10.1016/j.foodchem.2022.134756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 09/21/2022] [Accepted: 10/23/2022] [Indexed: 11/04/2022]
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5
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Quantitative proteomics provides a new perspective on the mechanism of network structure depolymerization during egg white thinning. Food Chem 2022; 392:133320. [DOI: 10.1016/j.foodchem.2022.133320] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Revised: 05/16/2022] [Accepted: 05/24/2022] [Indexed: 12/11/2022]
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6
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Ye Y, Li A, Feng T, Yuan X, Xiao X, Wang Y. Preparation and characterization of an alkali‐pickled preserved egg white heat‐induced gel. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Yang Ye
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
| | - Anjiao Li
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
| | - Tingting Feng
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
| | - Xianling Yuan
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
| | - Xia Xiao
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
| | - Yang Wang
- School of Biological Engineering Sichuan University of Science and Engineering Yibin China
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7
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Use of Incinerated Eggshells to Produce Pidan. SUSTAINABILITY 2022. [DOI: 10.3390/su14116797] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Preserved eggs (pidans) are used in traditional Chinese cuisines. However, the alkaline conditions and metal ions generated during its preparation have caused some concerns. This study developed an innovative process for pidan processing using incinerated eggshell powder, an abundant by-product that can generate a highly alkaline solution and provide calcium ions (Ca2+). Either 0.5, 3, or 5% of the eggshell powder solution was used for basic pickling. Different combinations of ZnSO4 (0.175%), MgCl2 (0.08%), and CuSO4 (0.16%) were added. Duck eggs were pickled for 25 days at 25–27 °C, followed by 14 days of ripening. The pidan processed in 5% eggshell powder containing 0.175% ZnSO4 demonstrated the closest physiochemical and sensory characteristics to commercial pidans. Thus, the results offer a new technique to manufacture pidans and reduce the harmful impact of metal ions on human health and the environment.
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8
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Li A, Wang Y, Zhang D, Liu S, Ye Y. Formation of high-elasticity and high-strength semitransparent ovalbumin gel induced by alkali-heat treatment. INTERNATIONAL JOURNAL OF FOOD PROPERTIES 2022. [DOI: 10.1080/10942912.2022.2070201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Anjiao Li
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, China
| | - Yang Wang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, China
| | - Dacheng Zhang
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, China
| | - Shixin Liu
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, China
| | - Yang Ye
- School of Biological Engineering, Sichuan University of Science and Engineering, Yibin, China
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9
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Effectiveness of different cleaning measures on the bonding of resin cement to saliva-contaminated or blood-contaminated zirconia. J Dent 2022; 120:104084. [DOI: 10.1016/j.jdent.2022.104084] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Revised: 02/27/2022] [Accepted: 03/02/2022] [Indexed: 11/19/2022] Open
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10
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Real-Time Gauging of the Gelling Maturity of Duck Eggs Pickled in Strong Alkaline Solutions. Foods 2021; 10:foods10092057. [PMID: 34574166 PMCID: PMC8471657 DOI: 10.3390/foods10092057] [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: 07/22/2021] [Revised: 08/16/2021] [Accepted: 08/25/2021] [Indexed: 11/16/2022] Open
Abstract
Although many ultraviolet-visible-near-infrared transmission spectroscopy techniques have been applied to chicken egg studies, such techniques are not suitable for duck eggs because duck eggshells are much thicker than chicken eggshells. In this study, a high-transmission spectrometer using an equilateral prism as a dispersive element and a flash lamp as a light source was constructed to nondestructively detect the transmission spectrum of duck eggs and monitor the pickling of eggs. The evolution of egg transmittance was highly correlated with the albumen during pickling. The transmittance exponentially decays with time during this period, and the decay rate is related to the pickling rate. The colors of the albumen and yolk remain almost unchanged in the first stage. A multiple linear regression analysis model that realizes a one-to-one association between the days of pickling and the transmission spectra was constructed to determine the pickling duration in the second stage. The coefficient of determination reached 0.88 for a single variable, wavelength, at 590 nm. This method can monitor the maturity of pickled eggs in real time and does not require the evolution of light transmittance.
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11
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Bhat ZF, Morton JD, Bekhit AEDA, Kumar S, Bhat HF. Effect of processing technologies on the digestibility of egg proteins. Compr Rev Food Sci Food Saf 2021; 20:4703-4738. [PMID: 34355496 DOI: 10.1111/1541-4337.12805] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 06/06/2021] [Accepted: 06/22/2021] [Indexed: 02/06/2023]
Abstract
Egg and egg products are a rich source of highly bioavailable animal proteins. Several processing technologies can affect the structural and functional properties of these proteins differently and can influence their fate inside the gastrointestinal tract. The present review examines some of the processing technologies for improving egg protein digestibility and discusses how different processing conditions affect the digestibility of egg proteins under gastrointestinal digestion environments. To provide up-to-date information, most of the studies included in this review have been published in the last 5 years on different aspects of egg protein digestibility. Digestibility of egg proteins can be improved by employing some processing technologies that are able to improve the susceptibility of egg proteins to gastrointestinal proteases. Processing technologies, such as pulsed electric field, high-pressure, and ultrasound, can induce conformational and microstructural changes that lead to unfolding of the polypeptides and expose active sites for further interactions. These changes can enhance the accessibility of digestive proteases to cleavage sites. Some of these technologies may inactivate some egg proteins that are enzyme inhibitors, such as trypsin inhibitors. The underlying mechanisms of how different technologies mediate the egg protein digestibility have been discussed in detail. The proteolysis patterns and digestibility of the processed egg proteins are not always predictable and depends on the processing conditions. Empirical input is required to tailor the optimization of processing conditions for favorable effects on protein digestibility.
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Affiliation(s)
- Zuhaib F Bhat
- Division of Livestock Products Technology, SKUAST of Jammu, Jammu, Jammu and Kashmir, India
| | - James D Morton
- Department of Wine Food and Molecular Biosciences, Lincoln University, Christchurch, New Zealand
| | | | - Sunil Kumar
- Division of Livestock Products Technology, SKUAST of Jammu, Jammu, Jammu and Kashmir, India
| | - Hina F Bhat
- Division of Biotechnology, SKUAST of Kashmir, Srinagar, Jammu and Kashmir, India
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12
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Zheng NY, Chen YC, Chen YP, Shiu JS, Wang SY. Development of a heatable duck egg white translucent jelly: an evaluation of its physicochemical properties and thermal stability. Poult Sci 2021; 100:101373. [PMID: 34343905 PMCID: PMC8348587 DOI: 10.1016/j.psj.2021.101373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Revised: 06/24/2021] [Accepted: 06/28/2021] [Indexed: 12/03/2022] Open
Abstract
Though nutritional, the remaining separated duck egg white in duck egg processing plants presents challenges for its transportation and use, as it spoils easily and has a strong odor. Uses for the excess egg white are of paramount concern for agricultural resource reuse. The purpose of this study was to increase its value and use efficiency. Duck egg white was mixed with sodium hydroxide to produce translucent alkali-induced egg white jelly similar to that in preserved egg whites. To develop a heatable translucent egg white jelly, their physiochemical properties and thermal stabilities were investigated. A gel prepared with 150 mM sodium hydroxide at 25°C had optimal bloom strength and the densest microstructure. Storing the jelly at 5°C helped maintain its disulfide bonds and delayed liquefaction. Although heating decreased its bloom strength and total disulfide bond content as temperature increased (P < 0.05), scanning electron microscopy of the heated jelly revealed that the protein network structure was denser than that of unheated jelly. Heating caused parts of the structure to shrink and even dehydrate, leading to a wrinkled surface. However, no signs of liquefaction or collapse were observed, and the free alkali released during heating was lower than that from the white of existing preserved eggs. These results confirmed the thermal stability of the jelly and its potential to be served hot or used in food processing. Furthermore, in addition to disguising the odor and special flavor attributable to the alkaline treatment, adding ginger juice or turmeric to the preparation yielded higher bloom strength, resulted in lower free alkalinity, and delayed liquefaction, thus improving the jelly's thermal stability. Like preserved eggs on the market that can be served in hot congee, the proposed egg white jelly is rich in proteins and suitable for hot or instant serving. These findings may help address the problem of excessive remaining duck egg white created during food processing by diversifying duck egg processing and boosting its value.
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Affiliation(s)
- Nian-Yao Zheng
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yi-Chen Chen
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan
| | - Yen-Po Chen
- Department of Animal Science, National Chung Hsing University, Taichung 40227, Taiwan; The iEGG and Animal Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan
| | - Jia-Shian Shiu
- Hengchun Branch, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung 946, Taiwan
| | - Sheng-Yao Wang
- Department of Animal Science and Technology, National Taiwan University, Taipei 10617, Taiwan.
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13
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Cao D, Feng F, Xiong C, Li J, Xue H, Zhao Y, Wang Y, Tu Y, Zhao Y. Changes in lipid properties of duck egg yolks under extreme processing conditions. Poult Sci 2021; 100:101140. [PMID: 34091349 PMCID: PMC8182270 DOI: 10.1016/j.psj.2021.101140] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 03/04/2021] [Accepted: 03/15/2021] [Indexed: 11/20/2022] Open
Abstract
The changes in lipid properties of duck egg yolks during processing may affect the quality of egg yolks. In this paper, various physicochemical and instrumental methods were used to study the changes of lipid characteristics of duck egg yolks under extreme processing conditions such as high salt, high salt-heat synergy and strong alkali. The results showed that both the high salt and high salt-heat treatments resulted in the decrease of the moisture content and the increase of the oil exudation of egg yolks. The iodine value of the lipid extracted from salted egg yolks with or without heat treatment decreased. However, strong alkali treatment increased the moisture content of egg yolks, and the oil exudation increased at first and then decreased. The iodine value of the lipid obtained from preserved egg yolks showed an overall trend with first increase and then decrease, and the saponification value of the lipid got from preserved egg yolks was lower than the lipid got from the raw salted egg yolks. According to the conjugated diene acid value and thiobarbituric acid value, the lipid of egg yolks was oxidized to different degrees under the three processing conditions. At the end of pickling, the fatty acid content of the lipid acquired from egg yolks all increased. Therefore, all three extreme treatments significantly changed the lipid properties of duck egg yolks.
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Affiliation(s)
- Danhui Cao
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Feng Feng
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Chunhong Xiong
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Jianke Li
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Hui Xue
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Ying Zhao
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yuting Wang
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China
| | - Yonggang Tu
- Jiangxi Key Laboratory of Natural Products and Functional Food, Jiangxi Agricultural University, Nanchang 330045, China
| | - Yan Zhao
- Engineering Research Center of Biomass Conversion, Ministry of Education, Nanchang University, Nanchang 330047, China; State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China.
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14
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Effects of packaging methods on the quality of heavy metals-free preserved duck eggs during storage. Poult Sci 2021; 100:101051. [PMID: 33756249 PMCID: PMC8020475 DOI: 10.1016/j.psj.2021.101051] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2020] [Revised: 01/29/2021] [Accepted: 02/04/2021] [Indexed: 11/18/2022] Open
Abstract
Preserved eggs without adding heavy metals in the pickling solution (heavy metals–free preserved eggs) have been developed, but it was found that the undesirable phenomenon such as dry shrinkage and fading occurred when they were not packaged and stored at room temperature. In this study, the effects of 5 packaging methods on the quality of heavy metals-free preserved eggs during storage were systematically studied. These methods included storage at room temperature and 4°C without packaging, wrapping with plastic bags, paraffin coating, and vacuum package. Through adopting these 5 packaging methods, the results showed that the moisture content and pH of the albumen decreased continuously, the mass loss rate increased continuously, the content of total volatile basic nitrogen increased firstly and then decreased, and the albumen hardness increased continuously. No microorganisms were detected in all samples with the 5 packaging methods during storage. Among them, the uncoated preserved eggs suffered the most serious moisture loss and mass loss, and the pH dropped at the fastest rate, followed by the preserved eggs wrapped in plastic bags. Preserved eggs stored at low temperature tended to turn yellow during storage, and the albumen showed higher hardness. The packaging method of paraffin coating performed the best in preventing the moisture loss of the albumen and the weight loss, which only decreased by 0.34 and 1.24%, respectively, after 3 mo. The best springiness, the darkest color, and the highest sensory score were found in the vacuum-packed preserved eggs after 3 mo of storage. It was concluded that paraffin coating and vacuum packing had better effect, while plastic bag packing showed the worst preservation performance for heavy metals–free preserved eggs.
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15
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Deng C, Shao Y, Xu M, Yao Y, Wu N, Hu H, Zhao Y, Tu Y. Effects of metal ions on the physico-chemical, microstructural and digestion characteristics of alkali-induced egg white gel. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.105956] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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16
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Ai M, Zhou Q, Guo S, Fan H, Cao Y, Ling Z, Zhou L, Jiang A. Characteristics of intermolecular forces, physicochemical, textural and microstructural properties of preserved egg white with Ca(OH)2 addition. Food Chem 2020; 314:126206. [DOI: 10.1016/j.foodchem.2020.126206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 12/27/2019] [Accepted: 01/11/2020] [Indexed: 11/24/2022]
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17
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Yang Y, Zhao Y, Xu M, Yao Y, Wu N, Du H, Tu Y. Effects of strong alkali treatment on the physicochemical properties, microstructure, protein structures, and intermolecular forces in egg yolks, plasma, and granules. Food Chem 2020; 311:125998. [DOI: 10.1016/j.foodchem.2019.125998] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 11/24/2019] [Accepted: 11/30/2019] [Indexed: 10/25/2022]
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18
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Zhao Y, Cao D, Shao Y, Xiong C, Li J, Tu Y. Changes in physico-chemical properties, microstructures, molecular forces and gastric digestive properties of preserved egg white during pickling with the regulation of different metal compounds. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.105281] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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19
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Relationship between protein structure changes and in vitro digestion of preserved egg white during pickling. Int J Biol Macromol 2019; 138:116-124. [DOI: 10.1016/j.ijbiomac.2019.07.057] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2019] [Revised: 07/07/2019] [Accepted: 07/07/2019] [Indexed: 02/07/2023]
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20
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Liu YF, Oey I, Bremer P, Carne A, Silcock P. Modifying the Functional Properties of Egg Proteins Using Novel Processing Techniques: A Review. Compr Rev Food Sci Food Saf 2019; 18:986-1002. [PMID: 33337008 DOI: 10.1111/1541-4337.12464] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2018] [Revised: 05/12/2019] [Accepted: 05/14/2019] [Indexed: 11/30/2022]
Abstract
Egg proteins can be used in a wide range of food products, owing to their excellent foaming, emulsifying, and gelling properties. Another important functional property is the susceptibility of egg proteins to enzymatic hydrolysis, as protein digestion is closely related to its nutritional value. These functional properties of egg proteins are likely to be changed during food processing. Conventional thermal processing can easily induce protein denaturation and aggregation and consequently reduce the functionality of egg proteins due to the presence of heat-labile proteins. Accordingly, there is interest from the food industry in seeking novel nonthermal or low-thermal techniques that sustain protein functionality. To understand how novel processing techniques, including high hydrostatic pressure, pulsed electric fields, ionizing radiation, ultraviolet light, pulsed light, ultrasound, ozone, and high pressure homogenization, affect protein functionality, this review introduces the mechanisms involved in protein structure modification and describes the structure-functionality relationships. Novel techniques differ in their mechanisms of protein structure modification and some have been shown to improve protein functionality for particular treatment conditions and product forms. Although there is considerable industrial potential for the use of novel techniques, further studies are required to make them a practical reality, as the processing of egg proteins often involves other influencing factors, such as different pH and the presence of other food additives (for example, salts, sugar, and polysaccharides).
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Affiliation(s)
- Ya-Fei Liu
- Dept. of Food Science, Univ. of Otago, Dunedin, New Zealand.,Dept. of Biochemistry, Univ. of Otago, Dunedin, New Zealand
| | - Indrawati Oey
- Dept. of Food Science, Univ. of Otago, Dunedin, New Zealand.,Riddet Inst., Palmerston North, New Zealand
| | - Phil Bremer
- Dept. of Food Science, Univ. of Otago, Dunedin, New Zealand
| | - Alan Carne
- Dept. of Biochemistry, Univ. of Otago, Dunedin, New Zealand
| | - Pat Silcock
- Dept. of Food Science, Univ. of Otago, Dunedin, New Zealand
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21
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Yang Y, Zhao Y, Xu M, Wu N, Yao Y, Du H, Liu H, Tu Y. Changes in physico-chemical properties, microstructure and intermolecular force of preserved egg yolk gels during pickling. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2018.10.016] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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22
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Quan TH, Benjakul S. Duck egg albumen: physicochemical and functional properties as affected by storage and processing. Journal of Food Science and Technology 2019; 56:1104-1115. [PMID: 30956290 DOI: 10.1007/s13197-019-03669-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 12/20/2018] [Accepted: 02/17/2019] [Indexed: 02/07/2023]
Abstract
The demand for duck meat and eggs in Asian countries increases every year. Duck egg albumen has become an important ingredient in the food industry alongside its hen counterpart, because of its excellent nutritive and functional properties. The major proteins in duck albumen are ovalbumin, ovomucoid, ovomucin, conalbumin, and lysozyme. Comparing with hen albumen, lower contents of ovalbumin, conalbumin, lysozyme and ovoflavoprotein are found in duck albumen. Nevertheless, duck albumen shows better gelling and foaming properties than hen albumen. During storage, duck albumen gel properties are enhanced, while foam volume and foam stability are decreased. Moreover, the changes in quality indices of duck egg including the thinning of the albumen, an increase in albumen pH, loss of water and carbon dioxide occur as storage time is increased. Some processes such as alkaline treatment also cause the loss in nutritive value of egg albumen. In this review, the composition and functional properties of duck albumen and how they are affected by processing conditions are also addressed, in comparison with hen albumen. A better understanding of duck egg albumen would be beneficial so that the food processing industry can exploit the potential of this avian protein.
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Affiliation(s)
- Tran Hong Quan
- 1Department of Food Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112 Thailand.,Department of Food Technology, Faculty of Applied Biological Sciences, Vinh Long University of Technology Education, Vinh Long, 890000 Vietnam
| | - Soottawat Benjakul
- 1Department of Food Technology, Faculty of Agro-Industry, Prince of Songkla University, Hat Yai, Songkhla 90112 Thailand
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Shao Y, Zhao Y, Xu M, Chen Z, Wang S, Tu Y. Effects of copper ions on the characteristics of egg white gel induced by strong alkali. Poult Sci 2017; 96:4116-4123. [DOI: 10.3382/ps/pex213] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 08/04/2017] [Indexed: 11/20/2022] Open
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Zhao Y, Chen Z, Li J, Xu M, Shao Y, Tu Y. Formation mechanism of ovalbumin gel induced by alkali. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.04.041] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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25
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Kang G, Seong PN, Cho S, Ham HJ, Kang SM, Kim D, Park BY, Ba HV. Effect of Ultra-sonication Treatment on the Quality Characteristics of Baked Eggs. Korean J Food Sci Anim Resour 2016; 36:458-62. [PMID: 27621685 PMCID: PMC5018504 DOI: 10.5851/kosfa.2016.36.4.458] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2016] [Accepted: 06/21/2016] [Indexed: 11/24/2022] Open
Abstract
The effect of ultra-sonication on quality characteristics and flavor of baked eggs was studied. One hundred and twenty eggs were cooked and assigned to six treatments groups (n=20 each) that were then soaked in saline solution at various concentrations (5, 10 and 18%) with/or without further ultra-sonication treatment at 35 kHz for 1 h. The pH values were lower in the ultra-sonicated samples in comparison with the non-ultra-sonicated samples (p<0.05). The values for texture traits were higher in the samples soaked in 10% saline solution with ultra-sonication in comparison with other remaining treatments or control (p<0.05). The sodium content in samples soaked in 10% saline solution with ultra-sonication was similar to that of the ones soaked in 18% saline solution without ultra-sonication. The higher flavor scores were also given for the ultra-sonicated samples in comparison with the control or non-ultra-sonicated ones. These results suggest that the application of ultra-sonication may produce a faster sodium penetration into baked eggs, simultaneously improves some textural traits (e.g., hardness) as well as flavor of the products.
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Affiliation(s)
- Geunho Kang
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Pil-Nam Seong
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Soohyun Cho
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Hyoung-Joo Ham
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Sun-Moon Kang
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Dayae Kim
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Beom-Young Park
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
| | - Hoa Van Ba
- Animal Products Research and Development Division, National Institute of Animal Science, Rural Development Administration, Wanju 55365, Korea
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Zhao Y, Luo X, Li J, Xu M, Tu Y. Effect of basic alkali-pickling conditions on the production of lysinoalanine in preserved eggs. Poult Sci 2015; 94:2272-9. [DOI: 10.3382/ps/pev184] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Accepted: 05/29/2015] [Indexed: 11/20/2022] Open
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