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Nutritional Value Evaluation of Two Seaweed of the Gulf of Oman: Sargassum illicifolium and Gracillaria cortica
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Mahmoud Hafezieh   , Seyed Hassan Hosseini , Danial Ajdari , Homeira Hossein Pour |
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Abstract: (10583 Views) |
| Studies were conducted to evaluate nutritional qualities of two seaweed, Sargassum illicifolium and
Gracillaria cortica, with a view to their utilization in Shrimp nutrition. The proximate composition,
minerals and vitamin contents, free fatty acid, and amino acid profiles were investigated. Protein and ash
content were the two abundant components in these seaweeds. S. illicifolium and G. cortica contained
9.18±1.15% and 18.29±2.1% Protein and 29.15±3.43%, and 23.11±1.43% ash based on dry weight,
respectively. Both seaweeds contained high amounts of minerals, although both kinds of seaweeds were
notably rich in iodine. S. illicifolium was also rich in potassium, calcium and magnesium, while G. cortica
was rich in other minerals, especially ferrous and copper. Total essential and unessential amino acids (g/
100 g sample) of S. illicifolium and G. cortica were 4.7 and 7.47: 7.67 and 13.8, respectively without any
statistical differences (P>0.05). Results showed both seaweeds had all essential AA which were needed for
shrimp feeding. All saturated FA, Mono unsaturated FA, Di- and more double band unsaturated FA ( mg
/g sample) and DHA/ EPA ratio were 10.87 and 2.76: 1.11 and 0.513: 1.06 and 0.4: 3.66 and 1.33
respectively with differences statistically (P<0.05). Vitamin E, C and Tiamin with amounts of 32.2 and
37.5: 890 and 1200: 45 and 71 (mg/ 100 feed) in S. illicifolium and G. cortica respectively showed
differences between these two seaweeds statistically (P<0.05). While, other vitamins were not
significantly different between these two seaweeds (P>0.05). Both seaweeds showed their potential of
being healthy food for shrimp diets or as a source of ingredients with high nutritional values. |
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| Keywords: S. illicifolium, G. cortica, Nutritional value, Gulf of Oman. |
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Full-Text [PDF 143 kb]
(2722 Downloads)
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Type of Study: Research/ Original/ Regular Article |
Received: 2014/06/22 | Revised: 2015/02/28 | Accepted: 2014/06/22 | ePublished: 2014/06/22
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