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A review on selenium-enriched proteins: preparation, purification, identification, bioavailability, bioactivities and application

Journal

FOOD & FUNCTION
Volume 13, Issue 10, Pages 5498-5514

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1fo03386g

Keywords

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Funding

  1. Opening Project of Key Laboratory of Oilseeds Processing, Ministry of Agriculture and Rural Affairs, China [202109]
  2. High-Level Talent Research Startup Fund of Yangzhou University [137012572, 137012095]

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Se-enriched proteins have good bioavailability and bioactivities, and can be extracted using solvent extraction and novel extraction technologies. These proteins exhibit various bioactivities including antioxidant, immune regulation, neuroprotective, and hyperglycemic inhibition activities. Future research should focus on the relationship between Se-enriched protein metabolism and the selenium regulatory protein metabolic pathway, as well as the structure-activity relationship of Se-enriched proteins/hydrolysates from different sources.
Selenium (Se) deficiency can cause many diseases and thereby affect human health. Traditional inorganic Se supplements have disadvantages of toxicity and low bioavailability. Se-Enriched proteins exhibit good bio-accessibility and high biological activities. This review provides a comprehensive overview of the preparation, purification, identification, bioavailability, bioactivities and application of Se-enriched proteins. The method of extracting Se-enriched proteins from animals, microorganisms and plants mainly includes solvent extraction (water, salt, ethanol and alkali solution extraction) and novel extraction technologies (ultrasound-assisted and pulsed electric field assisted extraction). Se-Enriched proteins and their hydrolysates exhibit good bioactivities, mainly including antioxidant activity, immune regulation, neuroprotective activity, and inhibition of hyperglycemic activity, among others. Future research should focus on the relationship between Se-enriched protein metabolism and the selenium regulatory protein metabolic pathway by using multi-omics technology. In addition, it is necessary to comprehensively study the structure-activity relationship of Se-enriched proteins/hydrolysates from different sources, to further clarify their bioactive mechanism and to verify their health benefits in vivo.

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