CASHEW APPLE POMACE AS A FUNCTIONAL FOOD INGREDIENT: NUTRITIONAL COMPOSITION, TECHNOLOGICAL PERFORMANCE AND SENSORY CONSTRAINTS
Abstract
The growing demand for sustainable food systems has intensified interest in valorizing agro-industrial by-products as functional food ingredients. Cashew apple bagasse (CAB), a residue generated during juice processing, accounts for approximately 20% of the peduncle mass and remains largely underutilized despite its nutritional potential. This narrative review critically analyzes experimental studies published between 2020 and 2026 that investigated the incorporation of CAB into food products for human consumption, with sensory evaluation as a mandatory inclusion criterion. Twelve studies met the predefined eligibility criteria. Overall, CAB incorporation consistently increased dietary fiber, mineral, and phenolic compound contents, resulting in enhanced antioxidant activity and, in some cases, technological benefits such as improved water-holding capacity and oxidative stability. However, incorporation levels were often limited by adverse sensory effects, mainly attributed to tannins and the high insoluble fiber fraction, which contributed to bitterness, astringency, and structural changes. Additionally, substantial variability was observed in raw material processing and characterization protocols, limiting comparability across studies. None of the analyzed studies assessed bioaccessibility or bioavailability using standardized digestion models, representing a critical gap for supporting functional claims. Although experimental evidence supports the technological feasibility of CAB as a functional ingredient, its consolidation in industrial food systems depends on raw material standardization, robust functional validation, and scale-up assessments within circular bioeconomy frameworks.
Author Biographies
Food Engineer graduated from the Federal University of Rio Grande do Norte (UFRN). Master’s student in Food Science at the Federal University of Minas Gerais (UFMG). Currently pursuing a specialization in Food Science and Technology at IFRN. Completed an international academic mobility program at AGROSUP Dijon (France) through the BRAFAGRI program (CAPES/CNPq). Has experience in Food Science and Technology and cost management in food services.
Full Professor at the Federal Institute of Education, Science and Technology of Rio Grande do Norte (IFRN), Currais Novos Campus. Holds a degree in Agronomic Engineering (ESAM), a Master’s degree in Agronomy/Plant Science (UFERSA), and a Ph.D. in Plant Science (UFV). Has experience in Postharvest Physiology and Fruit and Vegetable Technology, with a focus on storage, quality, and processing. Listed in the AD Scientific Index 2024, with recognition in national and international rankings.
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