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Research Article

Investigating the Quality Changes of Raw and Hot Smoked Oreochromis niloticus and Clarias lazera

Egbal O. Ahmed, Mohammed E. Ali, Regiah A. Kalid, Hana M. Taha and Asgad A. Mahammed
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This study deals with the effect of hot smoke curing by using two types of hard wood (Acacia seyal and Citrus lemon) on the proximate composition, microbial load and sensory evaluation of two species of fresh water fishes (Oreochromis niloticus and Clarias lazera). Highly significant differences (p<0.05) were observed on the proximate composition between the two species and the two types of wood, the percentage of total protein, lipid and ash contents increased, due to the decrease in the moisture content to the range 64,15±0.130 and 54.42±0.173%, respectively. The total viable counts of bacteria in fresh fish used as raw material (Oreochromis niloticus and Clarias lazera) were 281.5 x 103 and 183.7 x 103, respectively. After smoking the total viable counts of bacteria of O. niloticus reached 2 x 103, while of Clarias lazera was reduced to 6 x 103. The bacteria isolated before and after smoking was Staphylococcus aureus. With respect to the quality of the products related to colour, taste, texture and flavour, significant differences (p<0.05) in the parameters measured were observed, generally the products well accepted.

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  How to cite this article:

Egbal O. Ahmed, Mohammed E. Ali, Regiah A. Kalid, Hana M. Taha and Asgad A. Mahammed, 2010. Investigating the Quality Changes of Raw and Hot Smoked Oreochromis niloticus and Clarias lazera. Pakistan Journal of Nutrition, 9: 481-484.

DOI: 10.3923/pjn.2010.481.484


1:  Abdullahi, S.A., 2000. Evaluation of the nutrient composition of some freshwater fish family in Nigeria. J. Agric. Environ., 1: 141-150.

2:  Abdullahi, S.A., 2000. Studies on the nutrient contents of the fresh water fish species Labeo coubi, L. senegalensis and Barbus occidentalis family cyprinidae. Nig. J. Biochem. Mol. Biol., 15: 166-169.

3:  Ackman, R.G., 1989. Nutritional composition of fats in seafood. Progress Food Nutr. Sci., 13: 161-289.
PubMed  |  

4:  Afolabi, O.A., O.A. Arawomo and O.L. Oke, 1984. Quality changes of Nigerian traditionally processed freshwater fish species. Int. J. Food Sci. Technol., 19: 333-340.
CrossRef  |  Direct Link  |  

5:  Bhuiyan, A.A.K.M., W.M.N. Ratnayake and R.G. Ackman, 1986. Effect of smoking on the proximate composition of Atlantic mackerel (Scomber scombrus). J. Food Sci., 51: 327-329.
CrossRef  |  Direct Link  |  

6:  AOAC, 1980. Official Methods of Analysis. 3rd Edn., Association of Official Analytical Chemists, Washington, DC.

7:  Awouda, F.A., 1984. Changes of the body composition of some Nile fishes in relation to their gonad maturity. M.Sc. Thesis, Dept. of Zoology, University of Khartoum, Sudan, pp: 55.

8:  Cardinal, M., C. Knockaert, O. Torrissen, S. Sigurgisladottir, T. Morkore, M. Thomassen and J.L. Vallet, 2001. Relation of smoking parameters to the yield, colour and sensory quality of smoked Atlantic salmon (Salmo salar). Food Res. Int., 34: 537-550.
CrossRef  |  Direct Link  |  

9:  Cowan, S.J. and K. Steel, 1974. Manual for Identification of Medical Bacteria. 2nd Edn., Cambridge University Press, England, pp: 46-78.

10:  Doe, P.E., 1998. Fish Drying and Smoking Production and Quality. Technomic Publishing, Lancaster, PA., pp: 89-115.

11:  FAO, 1992. Fermented Fish in African Food and Nutrition. CAB International, Wallingford.

12:  Goulas, A.E. and M.G. Kontominas, 2005. Effect of salting and smoking method on the keeping quality of chub mackerel (Scomber japonicus): Biochemical and sensory attributes. Food Chem., 93: 511-520.
Direct Link  |  

13:  Iskander, I.M., 1982. Preliminary evaluation of nutritional consitutents of the commoner nile fishes. B.Sc. Thesis, Faculty of Science, University of Khartoum, Sudan.

14:  Harrigan, W.F. and M.E. McCance, 1976. Laboratory Methods in Food and Diary Microbiology. 1st Edn., Academic Press, London, UK., pp: 452.

15:  Henderson, F., 1975. The fisheries of the reservoirs of central Sudan. FAO. Report to the Government of Sudan.

16:  Karra, H.A., 1978. Chemical and technological studies on the utilization of dogfish. M.Sc. Thesis, Food tech. Dept. Faculty of Agriculture, University of Alexandria, Egypt.

17:  Kolodziejska, I., C. Niecikowska, E. Januszewska and Z.E. Sikorski, 2002. The microbial and sensory quality of mackerel hot smoked in mild conditions. Ledensm. Wiss. U. Technol., 35: 87-92.
CrossRef  |  

18:  Mahmmoud, Z.N., 1977. Studies on meat quality of some common nile fish. M.Sc. Thesis, Faculty of Science, University of Khartoum, Sudan.

19:  Mahmmoud, Z., E.A. El-Hag and B.B. El-Sayed, 1989. Studies on the chemical composition of Etropis niloticus (Ganth, 1864). Proceedings of the 5th Scientific Conference of the Scientific Research Council, (SCSRC`89), Baghdad, Iraq, pp: 5-5.

20:  Shewan, J.M., 1952. Salting, smoking and drying of fish. World Fish, 3: 25-25.

21:  Ssali, W.M., 1988. Chemical composition data for nile perch (Lates niloticus) and its application to the utilization of the species fish technology, Laboratory, Uganda. Proceedings of FAO Experts Consultation on Fish Technology in Africa, Abidjan, Cote Devoire, April 25-28.

22:  Thurston, C.E., 1962. Physical characteristics and chemical composition of two subspecies of Lake Trout. J. Fish. Res. Bd. Canada, 19: 39-44.

23:  Unlusayin, M., S. Kaleli and H. Gulyavuz, 2001. The determination of flesh productivity and protein components of some fish species after hot smoking. J. Sci. Food Agric., 81: 661-664.
CrossRef  |  Direct Link  |  

24:  Yousif, O.M., 1988. Problems and scope of the future development of fisheries in the Sudan. Proceedings of the International Symposium on the Development of Animal Resources in the Sudan, University of Khartoum, Faculty of Veterinary Science, 3-7 January 1988.

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