ArticleFrontiers in bioengineering and biotechnology2026
Optimizing biogas production from poultry manure and cocoa pod husks co-digestion: implications for circular bioeconomy and decentralized energy systems in West Africa.
Article in Frontiers in bioengineering and biotechnology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Rapid population growth and agro-industrial expansion in West Africa are intensifying organic waste accumulation and energy insecurity, necessitating scalable waste-to-energy strategies. Methods: Batch biogas potential assessment assays were conducted using the ANKOM system under mesophilic (37°C) and thermophilic (55°C) conditions at C/N ratios of 20, 25, 30, and 35 using poultry manure (PM) and cocoa pod husk (CPH). Results: Under mesophilic mono-digestion, PM and CPH yielded 210.73 ± 27.12 and 244.65 ± 8.48 mL/g VS, respectively. Co-digestion significantly improved performance, with maximum cumulative biogas production of 348.65 ± 10.44 mL/g VS at C/N 25 under mesophilic conditions, corresponding to increases of approximately 65% and 42% compared with PM and CPH mono-digestion, respectively. Statistical analysis confirmed a significant effect of C/N ratio (p < 0.001) and a significant interaction between C/N ratio and temperature (p = 0.031). Discussion: Maintaining a balanced C/N ratio (25-30) under mesophilic conditions provides a technically robust and energy-efficient pathway for decentralized biogas systems. These findings support low-input anaerobic digestion strategies for circular bioeconomy development and sustainable energy access in West Africa.
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