Food processing sustainability, as well as waste minimization, are key concerns for the modern food industry. A significant amount of waste is generated by the fruit juice industry each year. In addition to the economic losses caused by the removal of these wastes, its impact on the environment is undeniable. Therefore, researchers have focused on recovering the bioactive components from fruit juice processing, in which a great number of phytochemicals still exist in the agro-industrial wastes, to help minimize the waste burden as well as provide new sources of bioactive compounds, which are believed to be protective agents against certain diseases such as cardiovascular diseases, cancer, and diabetes. Although these wastes contain non-negligible amounts of bioactive compounds, information on the utilization of these byproducts in functional ingredient/food production and their impact on the sensory quality of food products is still scarce. In this regard, this review summarizes the most recent literature on bioactive compounds present in the wastes of apple, citrus fruits, berries, stoned fruits, melons, and tropical fruit juices, together with their extraction techniques and valorization approaches. Besides, on the one hand, examples of different current food applications with the use of these wastes are provided. On the other hand, the challenges with respect to economic, sensory, and safety issues are also discussed.

中文翻译：

---

果汁工业废物作为生物活性物质的来源

食品加工的可持续性以及废物最小化是现代食品工业的主要关注点。果汁行业每年都会产生大量的废物。除了清除这些废物造成的经济损失外，其对环境的影响是不可否认的。因此，研究人员专注于从果汁加工中回收生物活性成分，其中农业工业废物中仍然存在大量植物化学物质，以帮助减少废物负担并提供生物活性化合物的新来源，这被认为是是针对某些疾病的保护剂，例如心血管疾病、癌症和糖尿病。尽管这些废物含有不可忽略的生物活性化合物，关于这些副产品在功能成分/食品生产中的利用及其对食品感官质量的影响的信息仍然很少。在这方面，本综述总结了关于苹果、柑橘类水果、浆果、核果、甜瓜和热带果汁废物中存在的生物活性化合物的最新文献，以及它们的提取技术和增值方法。此外，一方面，提供了使用这些废物的不同当前食品应用的例子。另一方面，还讨论了与经济、感官和安全问题有关的挑战。这篇综述总结了关于苹果、柑橘类水果、浆果、核果、甜瓜和热带果汁废物中存在的生物活性化合物的最新文献，以及它们的提取技术和增值方法。此外，一方面，提供了使用这些废物的不同当前食品应用的例子。另一方面，还讨论了与经济、感官和安全问题有关的挑战。这篇综述总结了关于苹果、柑橘类水果、浆果、核果、甜瓜和热带果汁废物中存在的生物活性化合物的最新文献，以及它们的提取技术和增值方法。此外，一方面，提供了使用这些废物的不同当前食品应用的例子。另一方面，还讨论了与经济、感官和安全问题有关的挑战。