Bioactive peptides derived from fermented foods: Preparation and biological activities

Bioactive peptides (BAPs) with potential health benefits are gaining popularity as people become more health -conscious. Fermented foods are produced through the vigorous metabolic activities of numerous microorgan-isms, which convert macromolecules in the food matrix into bioactive components, including BAPs. Access to endogenous BAPs in fermented foods reduces costs while simplifying isolation steps and provides a high-quality direct source of BAPs. Fermented foods-derived BAPs have been shown to have antihypertensive, antioxidant, and antibacterial activities; however, there is a lack of information on the production of BAPs through fermented foods, and a large number of BAPs resources in fermented foods have not been effectively explored. Therefore, this review introduces the current research status, preparation methods, biological functions, and digestive stability of BAPs in fermented foods, followed by a discussion of the shortcomings in current research and future directions to provide a foundation for applications of BAPs in fermented foods in the food and pharmaceutical fields.