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Review Articles

Exploration on bioactive properties of quinoa protein hydrolysate and peptides: a review

, , ORCID Icon, & ORCID Icon
Pages 2896-2909 | Published online: 28 Sep 2021
 

Abstract

Quinoa is an excellent source of nutritional and bioactive components. Protein is considered a key nutritional advantage of quinoa grain, and many studies have highlighted the nutritional and physicochemical properties of quinoa protein. In addition, quinoa protein is a good precursor of bioactive peptides. This review focused on the biological properties of quinoa protein hydrolysate and peptides, and gave a summary of the preparation and functional test of quinoa protein hydrolysate and peptides. A combination of milling fractionation and solvent extraction is recommended for the efficient production of quinoa protein. The biological functionalities of quinoa protein hydrolysate, including antidiabetic, antihypertensive, anti-inflammatory, antioxidant activities, and so on, have been extensively investigated based on in vitro studies and limited animal models. Additionally, bioinformatics analysis, including proteolysis simulation, virtual screening, and molecular docking, provides an alternative or assistive approach for exploring the potential bioactivity of quinoa protein and peptides. Nevertheless, further research is required for industrial production of bioactive quinoa peptides, verification of health benefits in humans, and mechanism interpretation of observed effects.

Disclosure statement

The authors declare that there are no conflicts of interest.

Additional information

Funding

This work was financially supported by the Hebei Provincial Key Research and Development Plan (Introduction and Quality Evaluation of Quinoa Germplasm, 19227527D-01) and the Agricultural Science and Technology Innovation Program of CAAS (Quality and Stress Resistance Traits Evaluation of Crop Germplasm Resource).

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