Processing and Storage Effects on the Proximate Composition, Changes in Heavy Metal Contents and Total Volatile Base Nitrogen (TVB-N) of Selected Fish Species in Osun State, Nigeria
Faith E. Bala
Abiodun Victor Ikujenlola
Taiwo O. Omobuwajo
Department of Food Science and Technology, Obafemi Awolowo University, Ile-Ife, Nigeria
International Journal of Aquaculture, 2018, Vol. 8, No. 15 doi: 10.5376/ija.2018.08.0015
Received: 28 Apr., 2018 Accepted: 17 May, 2018 Published: 08 Jun., 2018
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This is an open access article published under the terms of the Creative Commons Attribution License
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Preferred citation for this article:
Bala F.E., Ikujenlola A.V., and Omobuwajo T.O., 2018, Processing and storage effects on the proximate composition, changes in heavy metal contents and total volatile base nitrogen (TVB-N) of selected fish species in osun state, Nigeria, International Journal of Aquaculture, 8(15): 112-120 (doi: 10.5376/ija.2018.08.0015)
This study assessed the effect of location, processing methods and storage on the proximate composition, heavy metal contents and total volatile base nitrogen (TVB-N) of some selected fish species from Asejire and Opa reservoirs, Osun state. The fish species were processed by salting, drying, smoking, storing (25 ± 2°C) and analyzed for proximate composition, heavy metal contents and TVB-N. Protein, fat, ash and carbohydrate increased after processing but moisture content reduced. During storage the heavy metal concentrations reduced but moisture content and TVB-N increased; indicators of deterioration. The study concluded that processes such as smoking, drying and salting contributed to the keeping quality of the fishes and reduced the bio-accumulated heavy metal concentrations of the fish species.
Arsenic; Drying; Salting; Smoking; Total volatile base nitrogen
International Journal of Aquaculture
• Volume 8