Variation in Chemical Composition of Oils from Nile Perch (<i>Lates niloticus</i>) Belly Flaps with Capture Site and Season

Ogwok, Patrick; Muyonga, John H.; Sserunjogi, M.L.; Amegovu, Andrew Kiri; Makokha, Vincent

doi:10.1080/10498850903224224

Cited by 8 publications

(8 citation statements)

References 19 publications

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“…The present results showed that O. niloticus had relatively more types of ω 3 PUFAs than the other species, T. zillii , L. niloticus , and R. argentea . This finding is similar to Ogwok et al [ 36 ] and Muinde et al [ 18 ]. The more types of ω 3 PUFAs in O. niloticus might be attributed to the diverse food items consumed by the fish.…”

Section: Discussionsupporting

confidence: 92%

Fatty Acid Composition and Levels of Selected Polyunsaturated Fatty Acids in Four Commercial Important Freshwater Fish Species from Lake Victoria, Tanzania

Robert¹,

Mfilinge

Limbu

et al. 2014

Journal of Lipids

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Fatty acids (FAs) particularly ω3 and ω6 polyunsaturated fatty acids (PUFAs) play important role in human health. This study aimed to investigate the composition and levels of selected ω3 PUFAs in four commercial fish species, Nile perch (Lates niloticus), Nile tilapia (Oreochromis niloticus), Tilapia zillii, and dagaa (Rastrineobola argentea) from Mwanza Gulf in Lake Victoria. The results indicated that 36 types of FAs with different saturation levels were detected. These FAs were dominated by docosahexaenoic (DHA), eicosapentaenoic (EPA), docosapentaenoic (DPA), and eicosatetraenoic acids. O. niloticus had the highest composition of FAs (34) compared to L. niloticus (27), T. zillii (26), and R. argentea (21). The levels of EPA differed significantly among the four commercial fish species (F = 6.19, P = 0.001). The highest EPA levels were found in R. argentea followed by L. niloticus and O. niloticus and the lowest in T. zillii. The DPA levels showed no significant difference among the four fish species studied (F = 0.652, P = 0.583). The study concluded that all four commercial species collected from Mwanza Gulf are good for human health, but R. argentea is the best for consumption because it contains higher levels of ω3 FAs, mainly EPA.

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Section: Discussionsupporting

confidence: 92%

Fatty Acid Composition and Levels of Selected Polyunsaturated Fatty Acids in Four Commercial Important Freshwater Fish Species from Lake Victoria, Tanzania

Robert¹,

Mfilinge

Limbu

et al. 2014

Journal of Lipids

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“…Thus, this key feature places the Nile tilapia analyzed in this study in the fresh water category and is in good agreement with those reported earlier by Masa et al [14]. A high ratio of omega -3 to omega -6 PUFA in human and animal diets is very critical for proper physiological performance [2,10].…”

Section: Discussionsupporting

confidence: 92%

“…Saturated fatty acids (SFA) content in Nile tilapia from the present study were higher than menhaden oil (20.8%) [33]. Results from the current study also show that the SFA fraction was higher compared to the levels reported previously; where oil extracted from the belly flaps of Nile perch of varying sizes was analyzed for fatty acid composition [2]. The elevated SFA levels may be as a result of de novo synthesis within the fish, as well as the availability of large quantities of food for the fish.…”

Section: Discussionsupporting

confidence: 47%

“…Lake Victoria is the largest fresh water lake in Africa with a surface area of 68,000 Km 2 and distributed among Kenya (6%), Uganda (43%) and Tanzania (51%), [1][2][3][4]. The lake is shallow with a depth of 69 m. It is fed by a number of large rivers in Kenya, (Nzoia, Gucha-migori, Sondu-Miriu, Mara, Yala and Nyando), while River Nile is the single outlet [5].…”

Section: Introductionmentioning

confidence: 99%

“…Nile tilapia (Oreochromis niloticus) is one of the most consumed species among the Lake Victoria fish species. Its popularity is simply because it is a major source of essential omega-3-polyunsaturated fatty acids(PUFAs); namely docosahexaenoic acid (DHA), eicosapentaenoic acid, (EPA) and alpha linolenic acid (ALA) [2,[12][13][14] which are associated with numerous health benefits [20].…”

Section: Introductionmentioning

confidence: 99%

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Effects of Heavy Metal Pollution on Omega-3 Polyunsaturated Fatty Acids Levels In Tilapia Fish from Winam Gulf of Lake Victoria

Muinde¹,

Ogoyi²,

Shiundu

2013

TOENVIEJ

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Winam Gulf is facing major pollution threats from anthropogenic input of pollutants such as heavy metals and agrochemical residues. This has deleterious effects on flora and fauna in the lake and consequently the quality of omega -3 polyunsaturated fatty acids (PUFAs) which have numerous health benefits in humans. In addition, heavy metal bioaccumulation in fish poses a threat to human health. The major objective of the study was to establish whether there is a correlation between the heavy metal pollutants and the levels of omega -3 PUFAs in fish. Levels of heavy metals -lead, cadmium, Zinc and chromium in sediments, water, and tilapia from selected sites in Winam Gulf were investigated. They were analyzed using Atomic Absorption Spectrophotometer. Fish muscles were further analyzed for omega -3 PUFAs using gas chromatography. Sediment samples accumulated the highest levels of heavy metals ranging from below detection limit to as high as 277 mg/kg on dry weight basis. Zinc levels in fish muscles were the highest whereas cadmium was the lowest. Heavy metal levels in water were found to be lowest compared to sediments and fish. Omega-3 PUFAs, particularly alpha-linolenic, eicosapentaenoic, docosapentaenoic and docosahexaenoic acids were in substantial amounts in fish. Oil contents were in the range of (2.47-3.87) %. There was no clear link observed between the levels of heavy metals and omega-3 PUFAs in fish although the fish muscles showed presence of these metals.

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Alkaliphilic Enzymes and Their Application in Novel Leather Processing Technology for Next-Generation Tanneries

Wanyonyi

Mulaa

2019

Advances in Biochemical Engineering/Biotechnology

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Variation in Chemical Composition of Oils from Nile Perch (Lates niloticus) Belly Flaps with Capture Site and Season

Cited by 8 publications

References 19 publications

Fatty Acid Composition and Levels of Selected Polyunsaturated Fatty Acids in Four Commercial Important Freshwater Fish Species from Lake Victoria, Tanzania

Fatty Acid Composition and Levels of Selected Polyunsaturated Fatty Acids in Four Commercial Important Freshwater Fish Species from Lake Victoria, Tanzania

Effects of Heavy Metal Pollution on Omega-3 Polyunsaturated Fatty Acids Levels In Tilapia Fish from Winam Gulf of Lake Victoria

Alkaliphilic Enzymes and Their Application in Novel Leather Processing Technology for Next-Generation Tanneries

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