Journal
COMPREHENSIVE REVIEWS IN FOOD SCIENCE AND FOOD SAFETY
Volume 20, Issue 4, Pages 3788-3817Publisher
WILEY
DOI: 10.1111/1541-4337.12759
Keywords
deamidation; engineered colloids; food protein; functionality; protein-glutaminase; protein modification
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Funding
- Youth Talent Support Project of Jiangsu Association for Science and Technology
- National Natural Science Foundation of China [31901611]
- Natural Science Foundation of Jiangsu Province [BK20190589]
- Fundamental Research Funds for the Central Universities of China [JUSRP11970]
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With the growing demand for functional and sustainable foods, the food industry is shifting towards producing novel protein-based diets, in which deamidation is seen as a viable and attractive approach for modifying protein structures. This method offers ease of operation, specificity, and cost-effectiveness, leading to enhanced functionalities of food proteins and the development of engineered food colloids with tailored properties for improved nutritional benefits.
With the ever-increasing demands for functional and sustainable foods from the general public, there is currently a paradigm shift in the food industry toward the production of novel protein-based diet. Food scientists are therefore motivated to search for natural protein sources and innovative technologies to modify their chemical structure for desirable functionality and thus utilization. Deamidation is a viable, efficient, and attractive approach for modifying proteins owing to its ease of operating, specificity, and cost-effective processes. Over the past three decades, the knowledge of protein deamidation for food applications has evolved drastically, including the development of novel approaches for deamidation, such as protein-glutaminase and ion exchange resin, and their practices in new protein substrate. Thanks to deamidation, enhanced functionalities of food proteins from cereals, legumes, milk, oil seeds and others, and thereby their processabilities as food ingredients have been achieved. Moreover, deamidated proteins have been used to fabricate engineered food colloids, including self-assembled protein particles, protein-metallic complexes, and protein-carbohydrate complexes, which have demonstrated tailored physicochemical properties to modulate oral perception, improve gastrointestinal digestion and bioavailability, and protect and/or deliver bioactive nutrients. Novel bioactivity, altered digestibility, and varied allergenicity of deamidated proteins are increasingly recognized. Therefore, deamidated proteins with novel techno-functional and biological properties hold both promise and challenges for future food applications, and a comprehensive review on this area is critically needed to update our knowledge and provide a better understanding on the protein deamidation and its emerging applications.
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