Abstract: Prunus domestica L., a member of the genus Prunus of the family Rosaceae, is known as a “third-generation functional fruit” due to its high nutritional value. It is rich in various bioactive components, such as pectin, dietary fiber, anthocyanins, and polyphenols, and has multiple biological functions including relieving constipation, antioxidant effects, inhibiting osteoporosis, lowering blood sugar and lipid levels, and enhancing intestinal function. With the continuous development of the processing industry, plum processing waste resources are becoming increasingly abundant. Therefore, the rational and efficient utilization of plum processing waste resources plays an important role in promoting the development of the medical and health field and the food industry. This article summarizes the sources of plum processing wastes as well as the bioactivities, extraction methods, functions and applications of their active components, and points out the current research challenges and future research directions. We hope that this review will provide reference for the development and utilization of plum processing wastes.

Key words: Prunus domestica L.; processing wastes; active ingredients; bioactivity; applied research