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Extraction, Modification, Functionality and Bioactivity of Plant Proteins for a Healthy and Sustainable Food System—Second Edition

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

Deadline for manuscript submissions: closed (30 April 2024) | Viewed by 2588

Special Issue Editors


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Guest Editor
Department of Agricultural, Food & Nutritional Science, University of Alberta, Edmonton, AB T6G 2P5, Canada
Interests: proteins; polysaccharides; chemical modifications; structure–function relationships; biopolymeric networks including nano/micro particles; nano-fibers; hydrogels; films
Special Issues, Collections and Topics in MDPI journals
Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences/Key Laboratory of Agro-Products Processing, Ministry of Agriculture, Beijing 100193, China
Interests: pea protein; functional food; food fermentation; interface properties; protein-–polysaccharide interactions
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Food proteins from plant sources such as legumes, cereals, oil seeds and other special crops are increasingly being exploited as more sustainable protein ingredients to address environmental issues and human health concerns. Protein extraction and modification methods are critical to their technico-functional properties, including solubility, rheology, interfacial activity, water and oil binding, emulsifying, foaming and gelling capacity. Depending on the extraction and modification methods, the physicochemical and functional properties of plant proteins vary significantly, which eventually affects their final application characteristics. Meanwhile, protein fragmentation strategies have also been developed to prepare peptides from plant protein sources with antioxidant, anti-inflammatory, and ACE and DPP4 inhibitory activities, among others. This Special Issue aims to capture the latest advances in the extraction and structural modification of plant proteins for new or improved functionality and bioactivity for food, beverage and nutraceutical applications. We welcome articles, communications, and scientific reviews. Relevant topics include, but are not limited to, the following:

1. Novel methods and technologies for plant protein extraction and structural modification;

2. Functionality and bioactivity of plant proteins or hydrolysates in relationship with their structures;

3. Effective strategies for the applications of functional plant protein ingredients in plant-based food formulations (e.g., meat, beverages, yogurt, whipped cream, ice cream, mayonnaise, staple foods, 3D-printed foods), as well as plant-protein-based delivery systems.

Prof. Dr. Lingyun Chen
Dr. Liya Liu
Guest Editors

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Keywords

  • plant protein
  • extraction
  • structure modification
  • functional properties
  • bioactivities
  • plant-based food

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Published Papers (1 paper)

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Research

17 pages, 1585 KiB  
Article
Relationship between Soybean Protein Isolate and Textural Properties of Texturized Vegetable Protein
by Lin Li, Yatao Huang, Yanfang Liu, Yangyang Xiong, Xinrui Wang, Litao Tong, Fengzhong Wang, Bei Fan and Xiaojia Bai
Molecules 2023, 28(22), 7465; https://doi.org/10.3390/molecules28227465 - 7 Nov 2023
Viewed by 2384
Abstract
To identify the ideal soybean protein isolate for texturized vegetable protein processing, the effect of different soybean protein isolates on texturized vegetable protein composition was studied. Three different types of soybean protein isolates were selected and analyzed for functional properties (water holding capacity [...] Read more.
To identify the ideal soybean protein isolate for texturized vegetable protein processing, the effect of different soybean protein isolates on texturized vegetable protein composition was studied. Three different types of soybean protein isolates were selected and analyzed for functional properties (water holding capacity (WHC), emulsifying properties, foaming properties), amino acid content, and protein secondary structure. Then, using the same formulation, the soybean protein isolates were extruded to produce texturized vegetable protein, and its textural properties, degree of texturization, microstructure, free sulfhydryl (free SH), and disulfide (S-S) content were determined. Lastly, a correlation analysis was performed to examine the connection between soybean protein isolates and texturized vegetable proteins. After correlation analysis, the soybean protein isolate functional properties that affect the textural properties of the texturized vegetable protein were as follows: the emulsifying property affected the hardness, adhesiveness, springiness, gumminess, and chewiness of the texturized vegetable proteins; and the foaming property affected the gumminess, chewiness, and the degree of texturization of the texturized vegetable proteins. In addition, 16 amino acids including threonine (Thr), methionine (Met), and arginine (Arg) affect texturized vegetable proteins, mainly with respect to adhesiveness, springiness, and free SH. The effects of secondary structure (α-helix, random coil) on texturized vegetable proteins were degree of texturization, resilience, and cohesion, respectively. Therefore, choosing the soybean protein isolate with better emulsifying and foaming properties provides a more suitable approach for processing texturized vegetable protein. Full article
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