Novel extraction methods and potential applications of polyphenols in fruit waste: a review

During fruit waste processing, bioactive compounds can be lost along with waste, and thus it is necessary to recover these bioactive compounds. Recently, the extraction of polyphenols from fruit waste and the stabilization and integration of these compounds into food substances has become a valuable research field. Polyphenols have strong antioxidant, anti-inflammatory, and antibacterial activity and are the main active components of fruit waste. Their extraction from fruit waste is of great commercial and scientific significance. The extraction of polyphenols from fruit waste, the stabilization of their bioactivities, and their integration into the food matrix have become increasingly interesting topics. In this review, the novel extraction methods and potential applications of fruit waste polyphenols were summarized to inform the recovery and utilization of polyphenols in fruit waste. The comprehensive utilization of byproducts from food industry is beneficial to the reduction of food costs, the alleviation of environmental contamination, and the realization of food industry sustainability.