The obvious depletion of wood resources at a rapid rate and the inherent danger
posed by the environmental degradation necessitates the need for an improved and
eco-friendly alternative source of energy in fish processing. Smoking performance
and cost implication of using briquette compared to charcoal in smoking process of
eviscerated African catfish (Clarias gariepinus) was carried out. Performance
evaluation parameters of the two energy sources included fish drying rate, energy
consumed, energy efficiency, specific fuel consumption and duration of smokedrying
operation. Data collected were subjected to statistical analysis using
descriptive. Charcoal recorded better specific fuel consumption (2.36±0.35kg),
smoking time (5.87±1.42h/kg) and fish drying rate (0.13±0.03kg/hr) compared to
briquette with 3.61±0.68kg; 8.43±0.84h/kg and 0.09±0.01kg/hr respectively. Energy
expended was also higher in briquette (170.55±18.37MJ/kg) than in charcoal
(164.08±25.54MJ/kg). Energy efficiency was however better in briquette (99.3%) than
charcoal (99.0%). Cost assessment showed no significant difference (p>0.05) between
the operational cost of the two energy sources. Generally, briquette exhibited a
competitive attributes in energy efficiency and cost of production, therefore may
serve as a viable alternative to charcoal as energy source for smoking fish.
Keywords: Catfish, charcoal, briquette, energy source, energy efficiency, smoke
drying, cost assessment