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Edible Insects as Future Proteins: Nutritional Value, Functional Properties, Bioactivities, and Safety Perspectives

Xinyan Xu,Mengmeng Feng,Tongwei Wei,Fei Pan,Liang Zhao,Lei Zhao

Published 2025 in Nutrients

ABSTRACT

The growing demand for sustainable and nutritionally balanced protein sources has intensified global interest in edible insects as an emerging alternative to conventional animal- and plant-based proteins. This review synthesizes current knowledge on insect proteins with a clear focus on four dimensions: nutritional value, functional properties, bioactivities, and safety considerations. Edible insects such as Bombyx mori, Acheta domesticus (A. domesticus), Tenebrio molitor, and Hermetia illucens provide high-quality proteins rich in essential amino acids, with favorable digestibility and bioavailability. Their unique functional characteristics—including solubility, emulsification, foaming, and gelation—support versatile applications in food formulations ranging from meat analogs to protein-fortified products. Insect-derived peptides further exhibit diverse bioactivities, such as antioxidant, anti-hypertensive, antidiabetic, and antimicrobial effects, highlighting their potential as functional food ingredients. Nevertheless, allergenicity and consumer acceptance remain critical challenges that must be addressed through improved processing technologies and regulatory frameworks. By systematically integrating these perspectives, this review underscores the promise of insect proteins as future food and health resources while outlining key barriers and research priorities for their safe and sustainable utilization.

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