Cocoa husk in the circular bioeconomy: a perspective from Ecuador and other producer countries

Background Cocoa husk is an abundant agro-industrial by-product in producer regions, such as Ecuador. Evidence shows promise across food, materials, and bioenergy applications; however, industrial uptake remains limited by safety, standardization, and financing barriers. Objective This Perspective synthesizes advances in cocoa husk valorization, articulates the authors’ viewpoint on feasible near-term pathways, and proposes policy and implementation steps for the producer countries. Approach We map application domains by maturity (food, industrial materials, and bioenergy), highlight feasibility, safety, and market considerations, and present a pragmatic adoption framework tailored to Ecuador while being relevant to other producer contexts. Key messages (i) Near-term opportunities lie in functional foods and low-tech materials integrated with local chains; (ii) scaling is constrained by raw-material variability, safety compliance, and the lack of SOPs; and (iii) bioenergy routes are context-dependent and more credible within integrated biorefinery models. Implications Priority actions include harmonized safety standards and testing, public–private–academic pilots, targeted incentives for first-movers, and modular, low-cost process templates. Conclusion Aligning evidence, regulation, and financing can shift cocoa husks from waste to strategic resources within circular bioeconomy agendas in Ecuador and other producer countries.