Proteins and Peptides from Animal-Derived Foods: Physicochemical Properties and Health Benefits

A special issue of Foods (ISSN 2304-8158). This special issue belongs to the section "Food Physics and (Bio)Chemistry".

Deadline for manuscript submissions: closed (26 July 2024) | Viewed by 4824

Special Issue Editor


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Guest Editor
College of Food Science and Engineering, Tianjin University of Science and Technology, Tianjin 300457, China
Interests: protein/peptide function; nutritious supplementary; nutrient delivery; animal product processing

Special Issue Information

Dear Colleagues,

Animals are the main sources of dietary proteins. The major animal proteins in human foods are from dairy, meat, seafood, eggs, and insects. Animal protein is broadly recognized as having higher nutritional quality than plant-based protein, due to the fact that animal protein can supply essential amino acids and have great digestibility as well as the ability to transport other important nutrients. In addition, animal proteins have excellent physicochemical properties, such as gelling, emulsification, foaming, etc. Bioactive peptides are multifunctional compounds derived from proteins that also exhibit significant biological functions, such as antioxidant, immune, and anti-inflammatory activity, etc. Thus, proteins and peptides from animal-derived foods can be used as functional foods and pharmaceutical preparations with which to promote human health due to their advantages of high safety with no side effects, being rich sources, obvious physiological effects, and easy digestion as well as absorption. Nevertheless, the physicochemical properties and biological activities of proteins/peptides are affected by many factors and aspects, such as the enzymatic hydrolysis process, separation and purification processes, structure–activity relationship, and digestion as well as absorption status in vivo.

Dr. Xiaowei Zhang
Guest Editor

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Keywords

  • animal protein
  • animal peptide
  • physicochemical properties
  • digestive stability
  • absorption
  • functional characteristics
  • health benefits
  • function foods

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Published Papers (3 papers)

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Research

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15 pages, 5307 KiB  
Article
Preparation, Structural Characterization, and Stability of Low-Molecular-Weight Collagen Peptides–Calcium Chelate Derived from Tuna Bones
by Yaqi Zhong, Yufang Zhou, Mingzhu Ma, Yadong Zhao, Xingwei Xiang, Conghan Shu and Bin Zheng
Foods 2023, 12(18), 3403; https://doi.org/10.3390/foods12183403 - 12 Sep 2023
Cited by 6 | Viewed by 1871
Abstract
This study was conducted to prepare calcium chelate of low-molecular-weight tuna bone collagen peptides (TBCPLMW) with a high chelation rate and to identify its structural characteristics and stability. The optimum conditions for calcium chelation of TBCPLMW (TBCPLMW-Ca) were [...] Read more.
This study was conducted to prepare calcium chelate of low-molecular-weight tuna bone collagen peptides (TBCPLMW) with a high chelation rate and to identify its structural characteristics and stability. The optimum conditions for calcium chelation of TBCPLMW (TBCPLMW-Ca) were determined through single-factor experiments and response surface methodology, and the calcium-chelating capacity reached over 90% under the optimal conditions. The amino acid compositions implied that Asp and Glu played important roles in the formation of TBCPLMW-Ca. Structural characterizations determined via spectroscopic analyses revealed that functional groups such as -COO, N-H, C=O, and C-O were involved in forming TBCPLMW-Ca. The particle size distributions and scanning electron microscopy results revealed that folding and aggregation of peptides were found in the chelate. Stability studies showed that TBCPLMW-Ca was relatively stable under thermal processing and more pronounced changes have been observed in simulated gastric digestion, presumably the acidic environment was the main factor causing the dissociation of the TBCPLMW-Ca. The results of this study provide a scientific basis for the preparation of a novel calcium supplement and is beneficial for comprehensive utilization of tuna bones. Full article
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Review

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22 pages, 2354 KiB  
Review
Antioxidant Peptides and Protein Hydrolysates from Tilapia: Cellular and In Vivo Evidences for Human Health Benefits
by Wen-Jie Ng, Fai-Chu Wong, Fazilah Abd Manan, Yit-Lai Chow, Ai-Lin Ooi, Mei-Kying Ong, Xuewu Zhang and Tsun-Thai Chai
Foods 2024, 13(18), 2945; https://doi.org/10.3390/foods13182945 - 18 Sep 2024
Viewed by 861
Abstract
Antioxidant peptides derived from aquatic organisms have attracted tremendous research interest due to their potential applications in human health. Tilapia is one of the most widely farmed aquaculture species globally. The current understanding of tilapia-derived antioxidant peptides is gradually expanding. This review discusses [...] Read more.
Antioxidant peptides derived from aquatic organisms have attracted tremendous research interest due to their potential applications in human health. Tilapia is one of the most widely farmed aquaculture species globally. The current understanding of tilapia-derived antioxidant peptides is gradually expanding. This review discusses the current knowledge of peptides and protein hydrolysates derived from tilapia muscle, skin, and scales, whose antioxidant capacity has been validated in various cellular and in vivo models. To date, at least 16 peptides and several hydrolysates have been identified from tilapia that protect human and non-human cell models against oxidative injury. Tilapia hydrolysates and peptide mixtures have also shown protective effects in animal models of oxidative stress-associated diseases and exercise-induced oxidative injury and fatigue. The key mechanisms of tilapia hydrolysates and peptide mixtures involve enhancing antioxidant enzyme activities and suppressing radical production. Notably, such hydrolysates also exerted additional in vivo functions, such as anti-inflammatory, anti-diabetic, wound healing, and antiaging properties. Taken together, tilapia-derived antioxidant peptides and hydrolysates represent a valuable source of functional ingredients for applications in functional food, dietary supplements, and therapeutic applications. Continued research into their health benefits is warranted in the future. Full article
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32 pages, 779 KiB  
Review
Preparation, Biological Activities, and Potential Applications of Hen Egg-Derived Peptides: A Review
by Li Song, Yi Chen, Huiping Liu and Xiaowei Zhang
Foods 2024, 13(6), 885; https://doi.org/10.3390/foods13060885 - 14 Mar 2024
Cited by 3 | Viewed by 1570
Abstract
Food-derived peptides have been extensively studied for their benefits in humans. Hen eggs, characterized by high protein and digestibility, are an excellent source of food-derived bioactive peptides. This review summarizes the preparation methods, purification, and identification of hen egg-derived peptides (HEPs). The preparation [...] Read more.
Food-derived peptides have been extensively studied for their benefits in humans. Hen eggs, characterized by high protein and digestibility, are an excellent source of food-derived bioactive peptides. This review summarizes the preparation methods, purification, and identification of hen egg-derived peptides (HEPs). The preparation methods mainly include enzymatic hydrolysis, microbial fermentation, and chemical synthesis. Genetic engineering is an emerging trend of HEP preparation. Then, we summarize the biological activities of HEPs, such as antioxidant activities, enzyme inhibitory activity, and antibacterial activity, of which the enzyme inhibitory activity is comprehensively summarized for the first time. The structure–activity relationship and underlying mechanism of the HEPs are further elucidated. Finally, the applications, future challenges, and opportunities of HEPs were mainly discussed in the food and non-food sectors. We focus on the potential applications of HEPs in intestinal health and assembly delivery and provide a reference for the further utilization and commercial development of HEPs. Full article
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