Biogas has been one of the promising renewable fuel produced from organic substrates. Cocoa husk has a potential to be a substrate for biogas production. Based on various studies, cocoa husk has the potential as a substrate for methane production from anaerobic co-digestion. However, lower biodegradation efficiency of anaerobic co-digestion of bonised cocoa pod husk was within an acceptable range because Garcia et al . [32] , observed that sulphur content of biomass was with in the range of (0.17% - Cocoa beans are found inside an outer husk; 60% of the cocoa fruit is the outer husk, which is a waste biomass. The husk cannot be used directly as a soil amendment as it promotes the fungal black pod disease, which reduces crop yield. Cocoa pod husk is a lignocellulosic biomass that is rich in minerals (in particular, potassium), fibers (especially lignin, cellulose, hemicellulose, and pectin), and antioxidants (phenolic acids, etc.) (Kouakou et al. 2018). However, it is still largely under-exploited. Cocoa pod husk, similar to other plant biomass, contains a mixture of cellulose, hemicellulose, lignin, pectin and crude fibre, and therefore serves as a potential source of biomass substrates for bio-chemical production. One of the residues produced after removal of the cocoa bean from the fruit is cocoa pod husk (CPH). The objective of this work was to assess the use of CPH as a renewable energy source. Cocoa (Theobroma cacao L.) fruits are important commodity of economic value since the seeds or beans is used to produce high demand products such as cocoa powder, butter and chocolate. PROCEED NOW TO DOWNLOAD PAGE. The processing of cocoa fruits generates a large amount of cocoa pod husk discard as wastes (Alemawor et al., 2009). From Table 1, it is evident that from 168 cocoa pods 49.1 kg of CPHs and 17.2 kg of wet beans were produced which resulted in an approx. 74% average percentage mass of CPHs when compared to the total mass of the cocoa pod. Therefore, on average, from every cocoa pod 0.292 kg and 0.102 kg of CPHs and wet beans, respectively, were produced. The cocoa pod of biomass (Syamsiro et al., 2012). husk (CPH) is the cropping residue obtained after In Colombia, CPH is expected to reach 2 100 extracting the cocoa pulp and represents between 000 ton year-1 in 2021. Currently, CPH is usually 52 and 70 % of the fruit’s wet weight. Cocoa pod husk, the main by-product from cacao industry (up to 76%), is an abundant, inexpensive, and renewable source of bioactive compounds like dietary fiber, pectin, antioxidant compounds, minerals and theobromine, justifying their valorization.
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