Impact of Improved Smoking Kiln Design on Hygiene and Timeliness of Drying of Smoked Fish

Abstract

The techniques used in processing cat fish in developing economies of the world are not without several drawbacks. The most prominent is traditional method and this has been known to generate high levels of polycyclic aromatic hydrocarbons (PAHs). In addressing the problems faced by processors in the industry, a fish smoker of 50kg capacity that derives its power from dual heat sources (charcoal and gas) was designed, fabricated and evaluated. The smoking time was evaluated on the heat sources with and without the use of a suction blower. The fish had a smoking (retention) time of 4 hours when it was processed without the suction blower while the retention time decreased from 4 hours to 3 hours when the suction blower was used. The suction blower also has a significant impact on the moisture content on dry basis (MC db). The MC db values of smoked fish when suction blower was used with charcoal and gas for 4 hours duration were 10.45% and 11.76%, respectively. Without blower, the values were 14.3% and 11.70%, respectively. The processed smoked fish produced was hygienic, not likely to exceed maximum limits of PAHs allowed by the United States Environmental Protection Agency since materials used are stainless steel and the heat sources used were indirectly introduced into the smoking chamber. Hygienic processing and practices of smoked fish and products can ensure food safety in our society

Keywords

• Smoking kiln,
• Suction blower,
• Charcoal,
• Smoked fish,
• fish processors.

Supporting Institution

nil

Project Number

nil

References

1. Ajav EA, Okusanya MA and Obi OF (2018). Jatropha oil extraction optimization through varied processing conditions using mechanical process. International Journal of Innovative Research and Development, 7(9): 227-241.
2. Akinneye JO, Amoo IA and Arannilewa ST (2007). Effect of drying methods on the nutritional composition of three species of fish (Bonga sp. Sardinella sp. and Heterotis niloticus). African Journal of Biotechnology, 9(28): 4369-4373.
3. Ames G, Cluscas I. and Paul SS (1999). Post-Harvest Losses of Fish in the Tropics Natural Resources Institute. Oversee Development Administration. pp11.
4. Ashaolu MO (2014). Development and performance evaluation of a motorized fish smoking kiln. Journal of Aquaculture Research and Development. 5:225-235.
5. Bolaji BO (2005). Performance evaluation of a simple solar dryer for food preservation. Book of Proceedings of 6th Annual Engineering Technology, Federal University of Technology, Minna, Nigeria.
6. Davies RM and Davies OA (2009). Traditional and improved fish processing technologies in Bayelsa State, Nigeria. European Journal of Scientific Research, 26(4): 539-548.
7. Donald BB., Bakker A. and Carl WH. (1974). A Textbook of Drying of Cereal Grains published by AVI Publishing Company INC:ISBN-0-87055-161-2
8. FAO (2018). Standard for smoked fish, smoke-flavoured fish and smoke-dried fish. CXS311-2013. Adopted in 2013. Amended in 2016, 2018. Accessed date: 01/11/2020

9. Ghanem TH. and Shetaw ME (2009). Some Mechanical Properties of Hulled Peanuts and Kernels. The 16th Annual Conference of the Misr Society of Agricultural Engineering. Agricultural engineering and variables of the present epoch: 1586-1597.
10. John KH (2005). Basic engineering mathematics. Imprint of Elsevier Linarce House Jordan Hill, Smoking Kiln. African Journal of Food Science and Technologies.
11. Joshi BD (1978). Two new species of trypanosomes from freshwater teleosts. Journal of Animal Morphology and Physiology. 25: 1–7.
12. Komolafe CA, Ogunlenleye IO, Adejumo AOD (2011). The performance evaluation of a convective fish dryer. International Journal Advance in Science and Technologies. 2(5): 58-64.
13. Kamaldeen OS, Isiaka AA, Arowora KA, Awagu EF (2016). Development of an improved fish smoking kiln. International Journal of Engineering Science and Computing, 6(7): 1925-1932.
14. Khoshmanesh S (2006). Design of solar dehydrator coupled with energy storage in rock bed reservoir for fish drying process. International Conference on energy and Environment (ICEE), Unversiti Tenaga Nasional,Bangi, Selangor, Malaysia.
15. Khurmi, RS. and Gupta, JK (2005). A textbook of machine design. 14th Edition, Eurasia Publishing House (PVT.) Ltd, Ram Nagar, New Delhi.
16. Marzano A (2018). Fish and fishing in the Roman World. Journal of Maritime Archaeology (13):437–447. https://doi.org/10.1007/s11457-018-9195-1
17. Olayemi FF, Adedayo MR, Bamishaiye EI and Awagu EG (2011). Proximate composition of Catfish (Clarias gariepinus) smoked in Nigerian Stored Products Research Institute (NSPRI) developed kiln. International Journal of Fisheries and Acquaculture, 3: 96: 98.
18. Silva BO, Adetunde OT, Oluseyi TO, Olayinka KO and Alo BI (2011). Effects of the methods of smoking on the levels of polycyclic aromatic hydrocarbons (PAHs) in some locally consumed fishes in Nigeria. African Journal of Food Science, 5(7): 384-391.
19. Tongo I, Ezemonye L and Akpeh K (2017). Distribution, characterization, and human health risk assessment of Polycyclic Aromatic Hydrocarbons (PAHs) in Ovia River, Southern Nigeria. Environmental Monitoring and Assessment, 189: 247.
20. Zwick.D, Dallid D and Cova B (2011). Critical perspective on consumers’ roles as producers broadening the debate on value co-creative in marketing processes. Marketing Theory, 11(3): 231-241.