Vol. 7, Issue 2, Part A (2025)

The growing demand for high-quality fruit pulp in the food industry has driven advancements in pulp extraction technologies to enhance efficiency, yield, and product hygiene. Traditional manual methods widely used are labor-intensive, time-consuming, high contamination and low extraction efficiency. Various mechanical and automated pulp extraction machines have been developed to optimize based on the physical and structural characteristics of different horticultural fruits such as pineapple, apple, orange, watermelon, mango and other fruits such as Baobab (Adansonia digitata), ginger, kendu fruits, Palmyrah fruit. This comprehensive review explores the technological advancements in pulp extraction mechanism used in the various machine, including auger-based screw presses, pneumatic separation, centrifugal separation and enzymatic-assisted methods with a focus on their working principles, performance, and efficiency. Innovative machines such as the Crushing Separation Machine (CSM) for apple juice extraction, auger-based systems for baobab and citrus fruits, and pneumatic-operated extractors for pineapple and orange have significantly improved pulp yield while reducing enzymatic browning and processing losses. Specialized mechanisms, including perforated sieves, shearing blades, and automated conveyor systems, are employed to ensure effective separation of pulp, seeds, peels, and fibrous materials. Furthermore, multipurpose extractors for small-scale farmers offer cost-effective solutions, contributing to sustainable pulp fruit processing. This review provides a comprehensive analysis of existing and emerging pulp extraction technologies, highlighting their efficiency, automation, and applicability across various fruit categories emphasize the need for continued research and development to optimize extraction mechanisms, reduce post-harvest losses, and enhance the economic viability of fruit processing industries.