Processing and Nutritional Evaluation of Animal Products

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Meat".

Deadline for manuscript submissions: 20 October 2024 | Viewed by 672

Special Issue Editors


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Guest Editor
School of Food and Health, Beijing Technology and Business University, Beijing 100048, China
Interests: lipid oxidation; processing; lipids; meat; fatty acids; food science

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Guest Editor
School of Liquor and Food Engineering, Guizhou University, Guiyang 550025, China
Interests: lipid oxidation; processing; lipids; meat; fatty acids; food science

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Guest Editor Assistant
Institute of Quality Standard and Testing Technology for Agro-Products of Chinese Academy of Agricultural Sciences, Beijing, China
Interests: lipid oxidation; processing; lipids; meat; fatty acids; food science
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Special Issue Information

Dear Colleagues,

Animal products (e.g., meat, aquatic, dairy products, and eggs) play an increasingly important role in our modern diet and ensuring food security. Processing is an indispensable part of food manufacturing to convert raw material into desirable and digestible forms. The processing of animal products includes both physical, chemical, and biological technologies, such as drying, salting, smoking, enzymolysis, fermenting, etc. There has been increased interest recently in the functional development and utilization of animal by-products, such as animal bone collagen peptides, animal blood, egg shell calcium, and egg shell membrane peptides, etc.  These processing technologies are applied to fulfil some critical requirements of the food industry and consumers, such as safety and enhanced shelf life. They also allow the production of designer products that fulfil special requirements such as reduced sodium, high fiber content, and improved product stability against oxidative processes. Recently, there has been increasing market demand for products with increased functional and nutraceutical value. Nutritional value is an important characteristic for animal products. Nutritional evaluation plays a very important role in guiding the processing of animal products, especially for some functional foods. Meanwhile, scientific nutritional evaluation can also help consumers gain a more accurate understanding of animal products.

Dr. Guofeng Jin
Dr. Yuanyuan Liu
Guest Editors

Dr. Xiaoyan Tang
Guest Editor Assistant

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Keywords

  • animal products
  • processing technologies
  • quality changes
  • animal by-products
  • nutritional evaluation
  • animal proteins and peptides
  • animal lipids

Published Papers (1 paper)

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Research

17 pages, 1251 KiB  
Article
Irradiation-Assisted Enhancement of Foaming and Thermal Gelation Functionality of Liquid Egg White
by Yan Zhang, Jianying Zhao, Lichao He, Jin Zhu, Yue Zhu, Guofeng Jin, Ruihang Cai, Xiaola Li and Chengliang Li
Foods 2024, 13(9), 1342; https://doi.org/10.3390/foods13091342 - 26 Apr 2024
Viewed by 2
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) [...] Read more.
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. Full article
(This article belongs to the Special Issue Processing and Nutritional Evaluation of Animal Products)
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