Redefining Carob by Products as Functional Ingredients for the Future Foods

For decades, the carob tree (Ceratonia siliqua L.) has been a cornerstone of Mediterranean countries, traditionally used as livestock feed. However, emerging research highlights its remarkable nutritional and functional potential, positioning carob by-products as valuable ingredients for the next generation of functional foods. This comprehensive review explores the nutritional profile, phytochemical composition, and health-promoting properties of carob derivatives to unlock their full potential in food innovation. Carob by-products are naturally rich in insoluble fiber, and bioactive compounds, including phenolic compounds, inositols, and essential vitamins. Additionally, numerous in vitro studies confirm their antioxidant, antibacterial, anticarcinogenic, and anti-inflammatory properties, making them promising candidates for developing foods with enhanced health benefits. Beyond their nutritional and functional attributes, the upcycling of carob by-products aligns with sustainability goals by optimizing agricultural resources, reducing food waste, and supporting circular economy principles. As the food industry seeks sustainable, plant-based solutions, carob emerges as a versatile ingredient with the potential to shape the future of functional foods. Continued research will drive innovation, reinforcing its role in eco-friendly and health-promoting food systems.