Proximate Composition of Some Common Hot Smoked Freshwater Fish Species Using Different Packaging Materials (Published)
Three Different packaging materials of (37cm x 25cm) size (Sealed Transparent Polythene Bag (STPB), Sealed Paper Bag (SPB), Open Mouth Polythene Bag (OMPB)) were used for each of Oreochromis niloticus, Clarias gariepinus and Mormyrus rume. Twenty fish samples per species (averaging 250gm) collected from Asejire Dam, Ibadan were hot smoked for 36hours at an average temperature of 100oC. Six fish of each species were packaged hot and stored for 12 weeks. There were significant differences (P<0.05) between the proximate composition of the fish treatments assessed. SPB had the best Crude Protein (CP) of 51.94±0.04% for C. gariepinus (SPBC) and least in M. rume (SPBM) (48.86±0.06%). The fresh fish CP of 29.40±0.04% (C. gariepinus) was condensed to 50.93±0.03% (initial smoked) and ranged between 51.94±0.04% (SPBC) to 52.86±0.02% (OMPBC). SPB packaging was the best for all the three fish samples in the study, C. gariepinus and O. niloticus stored better than M.rume.
Keywords: Hot smoked, Proximate Composition, cold smoked, packaging material
Proximate and Mineral Composition of Some Commercially Important Fishes in Jebl Awlia reservoir, Sudan (Published)
The proximate and mineral composition of the flesh of six commercially important fish species (Lates niloticus , Bagrus bayad , Oreochromis niloticus, Synodontis schall, Labeo niloticus and Hydrocynus froskalii) from Jebl Awlia reservoir, which represent different grades of preference to the Sudanese consumers, were studied to assess their nutritional values in order to gain the knowledge of the risk and benefits associated with the indiscriminate consumption of these fish species. Protein content was in the range (71.46% -89.13 %) in the fish samples, crude fat was (6.34 % – 9.66 %) while moisture and ash were (75.33% -79.33 %) and (3.83 % -7.07 %) respectively. Minerals included potassium (200.0-774.0ppm), calcium (195.0-246.0ppm), sodium (184.0-211.0ppm), magnesium (144.0-105.0ppm) and phosphorus (90.0-240.0ppm) while iron and zinc were present in trace amounts. Levels of mineral elements in fish species were within WHO recommended limit. The data showed that the fishes are of high nutritional value and good source of proteins and minerals.
Keywords: Mineral, Nile fishes and Sudan, Proximate Composition