Journal
TRENDS IN FOOD SCIENCE & TECHNOLOGY
Volume 129, Issue -, Pages 492-511Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tifs.2022.10.016
Keywords
Protein extraction; Green extraction technology; Techno-functional properties; Protein ingredient
Categories
Funding
- Canada Research Chairs Program
- NSERC [RGPIN 2020-07136, RGPIN 2022-04505, RGPIN 2018-06019]
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This review explores traditional and novel protein extraction methods, emphasizing the advantages of new technologies in terms of extraction efficacy and environmental safety, as well as highlighting the challenges in commercial adaptation.
Background: Conventional methods employed for protein extraction from different food materials have many drawbacks, including accelerated protein denaturation, production of huge wastewater causing environmental hazards, high consumption of chemicals, high production cost, and low extraction yield. These limitations have created a major bottleneck for food industries, particularly in the utilization of plant-based proteins, which have been reported to lose their techno-functional properties due to their extraction methods Scope and approach: To circumvent these limitations, innovative and green technologies such as enzyme-assisted extraction, deep eutectic solvent (DES) extraction, reverse micelles extraction, microwave-assisted extraction, ultrasonic-assisted extraction, and subcritical water extraction have emerged. These technologies have advantages over the conventional methods in terms of environmental safety, extraction efficacy, and improved technofunctional properties. However, the commercial adaption of these innovative methods is still in its infancy. Therefore, understanding the mechanism of these extraction methods is crucial for their exploration and industrial scale-up. Key findings and conclusions: This review provides an updated insight on the conventional and novel protein extraction methods and their challenges in the food industry. The advantage of these novel methods, particularly on the techno-functional properties of plant-based protein and their efficacy in developing value-added protein ingredients, are extensively discussed. Furthermore, the mode of action for the new and eco-friendly protein extraction methods is extensively discussed. Furthermore, these methods' challenges and future perspectives are also reviewed.
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