Abstract
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Article Information:
Fish as Source of n-3 Polyunsaturated Fatty Acids (PUFAs), Which One is Better-Farmed or Wild?
M.A. Hossain
Corresponding Author: M.A. Hossain
Submitted: 2011 November, 25
Accepted: 2011 December, 16
Published: 2011 December, 25 |
Abstract:
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Consumption of fish as a source of Eicosapentanoic acid (EPA) docosahexenoic acid (DHA) is
recommended for preventing cardiovascular and other diseases. Since world’s fish stocks are limited,
consumers are now being proposed farmed fish as an alternative. However, there is concern that is there any
differences between wild-caught and farm- raised fish? Is one type is better than others? The aim of this study
was to review the published information on the n-3 PUFAs, n-3/n-6 and DHA/EPA ratios of farmed and wild
fishes in order to estimate whether the health benefits of the farmed and wild fish is potentially the same.
Further, health benefits of n-3 fatty acids, importance of n-3/n-6 ratios, DHA/EPA ratios, factors affecting n-3
PUFAs, limitations or safety of fish as source of n-3 PUFAs, prospects of aquaculture as potential sources of
n-3 PUFAs and optimal intakes of n-3 PUFAs have also been discussed. In general, the lipid content of farmed
fish is higher than the wild but the proportion of n-3 PUFAs and DHA/EPA ratios in majority of wild fish are
higher than their counterparts although there was a mixed trend for n-3/n-6 ratios. As the fatty acid composition
of fish is largely dependent on the fatty acid composition of their feed, it can be customized by adjusting dietary
intakes. Since the farmed fish generally have higher total lipid levels than the wild, 100g of farmed fish muscle
can provide a similar or higher amount of n-3 PUFA than 100g wild fish. Thus, if they are raised under
appropriate conditions and dietary regimes, farmed fish can provide the consumers a nutritional composition
that is at least as beneficial as that provided by the wild.
Key words: Docosahexaenoic acid, eicosapentaenoic acid, fish consumption, fatty acids, human health, ,
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Cite this Reference:
M.A. Hossain, . Fish as Source of n-3 Polyunsaturated Fatty Acids (PUFAs), Which One is Better-Farmed or Wild?. Advance Journal of Food Science and Technology, (6): 455-466.
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ISSN (Online): 2042-4876
ISSN (Print): 2042-4868 |
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