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Study on Physicochemical Properties of Food Protein, 2nd Edition

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Food Chemistry".

Deadline for manuscript submissions: closed (31 July 2024) | Viewed by 4397

Special Issue Editors

School of Food Science and Biological Engineering, Hefei University of Technology, Hefei, China
Interests: food protein; food peptide; food allergy; food characteristics; food flavor; beverage development; edible film
Special Issues, Collections and Topics in MDPI journals
School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan, China
Interests: food protein; food peptide; food characteristics; food flavor
Special Issues, Collections and Topics in MDPI journals

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Guest Editor Assistant
College of Food Science, Northeast Agricultural University, Harbin 150030, China
Interests: food protein; protein structure; food flavor; protein function; emulsion
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

With the increasing demands for nutrition and health, especially during the COVID-19 pandemic, an increasing number of consumers are paying attention to the nutritional values of food proteins and protein-derived peptides from crops and animals. Food proteins supply adequate amounts of essential amino acids, but also contribute to the general well-being maintenance and the intervention against human diseases. Therefore, the exploitation and application of food proteins have been the primary foci of the food industry. Due to the difference in the physicochemical properties of various food proteins, such as the solubility, swelling, water retention capacity, foaming properties, gelling capacity, emulsifying, and fat-binding properties, it is necessary to scientifically study the quality and sensory attributes of protein foods in terms of preparation, processing, storage, and consumption. Furthermore, the physicochemical properties of proteins can be optimized using many innovative thermal and non-thermal methods including ultrasound, pH shifting, high pressure, irradiation, glycosylation, pulsed electric field, and enzymatic modification, to improve the applicability of proteins in the food industry. Thus, more efforts need to be devoted to understanding the relationship between the structure and functional properties after protein modification. In addition, the interactions of protein molecules with other food ingredients and their effects on the macroscopic properties of the food systems should be considered.

The 2nd Edition of this Special Issue aims to publish the most advanced investigations on the physicochemical properties of food proteins and provide useful information about the structure–function relationship based on protein modifications to explore the potential of food proteins in food development.

Dr. Shudong He
Dr. Wei Xu
Guest Editors

Dr. Zengwang Guo
Guest Editor Assistant

Manuscript Submission Information

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Keywords

  • food protein
  • physicochemical properties
  • structure-function relationship
  • modification
  • bioactivity
  • food processing

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Published Papers (2 papers)

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Research

16 pages, 3048 KiB  
Article
Exploring the Release of Elastin Peptides Generated from Enzymatic Hydrolysis of Bovine Elastin via Peptide Mapping
by Jianan Zhang, Yang Liu, Liwen Jiang, Tiantian Zhao, Guowan Su and Mouming Zhao
Molecules 2023, 28(22), 7534; https://doi.org/10.3390/molecules28227534 - 10 Nov 2023
Viewed by 1714
Abstract
To enhance the understanding of enzymatic hydrolysis and to accelerate the discovery of key bioactive peptides within enzymatic products, this research focused on elastin as the substrate and investigated the variations in peptide profiles and the production of key bioactive peptides (those exceeding [...] Read more.
To enhance the understanding of enzymatic hydrolysis and to accelerate the discovery of key bioactive peptides within enzymatic products, this research focused on elastin as the substrate and investigated the variations in peptide profiles and the production of key bioactive peptides (those exceeding 5% of the total) and their impacts on the biological activity of the hydrolysates. Through the application of advanced analytical techniques, such as stop-flow two-dimensional liquid chromatography and ultra-high-performance liquid chromatography-tandem mass spectrometry, the research tracks the release and profiles of peptides within elastin hydrolysates (EHs). Despite uniform peptide compositions, significant disparities in peptide concentrations were detected across the hydrolysates, hinting at varying levels of bioactive efficacy. A comprehensive identification process pinpointed 403 peptides within the EHs, with 18 peptides surpassing 5% in theoretical maximum content, signaling their crucial role in the hydrolysate’s bioactivity. Of particular interest, certain peptides containing sequences of alanine, valine, and glycine were released in higher quantities, suggesting Alcalase® 2.4L’s preference for these residues. The analysis not only confirms the peptides’ dose-responsive elastase inhibitory potential but also underscores the nuanced interplay between peptide content, biological function, and their collective synergy. The study sets the stage for future research aimed at refining enzymatic treatments to fully exploit the bioactive properties of elastin. Full article
(This article belongs to the Special Issue Study on Physicochemical Properties of Food Protein, 2nd Edition)
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20 pages, 1561 KiB  
Article
Application of Maillard Reaction Products Derived Only from Enzymatically Hydrolyzed Sesame Meal to Enhance the Flavor and Oxidative Stability of Sesame Oil
by Gang Ma, Shudong He, Shuyun Liu, Zuoyong Zhang, Tao Zhang, Lei Wang, Youshui Ma and Hanju Sun
Molecules 2022, 27(24), 8857; https://doi.org/10.3390/molecules27248857 - 13 Dec 2022
Cited by 10 | Viewed by 2226
Abstract
The low-temperature roasting of sesame oil has become increasingly popular because of its nutritional benefits; however, the flavor is reduced. In order to improve the quality of sesame oil without exogenous addition, sesame meal was hydrolyzed and further used to prepare Maillard reaction [...] Read more.
The low-temperature roasting of sesame oil has become increasingly popular because of its nutritional benefits; however, the flavor is reduced. In order to improve the quality of sesame oil without exogenous addition, sesame meal was hydrolyzed and further used to prepare Maillard reaction products (MRPs) while protease hydrolysis (PH) and glucoamylase-protease hydrolysis (GPH) were used, and their respective Maillard products (PHM and GPHM) were added in the oils for reducing sugar and total sugar content determination, free amino acid determination, and color and descriptive sensory analysis, as well as electronic nose, SPME-GC-MS, odor activity value, and oxidative stability analyses. Results showed that the MRPs could be produced using the enzymatically hydrolyzed sesame meal without exogenous addition, and the oil flavor blended with GPHM (GPHM-SO) was significantly (p < 0.05) improved with the best sensory quality. The composition of pyrazines (119.35 μg/mL), furans (13.95 μg/mL), and sulfur substances (6.25 μg/mL) contributed positively to sensory properties in GPHM-SO, and 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, and 2,3-dimethylpyrazine were characterized as the key flavor compounds with odor activity values of 7.01, 14.80, and 31.38, respectively. Furthermore, the oxidative stability of the oil was significantly improved with the addition of MRPs, and the shelf life of GPHM-SO was predicted to be extended by 1.9 times more than that of the crude oil based on the accelerated oxidation fitting analysis. In general, the MRPs derived only from sesame meal can enhance the flavor and oxidative stability of sesame oil and can be applied in the oil industry. Full article
(This article belongs to the Special Issue Study on Physicochemical Properties of Food Protein, 2nd Edition)
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