Journal
FOOD CHEMISTRY
Volume 85, Issue 3, Pages 439-444Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2003.08.001
Keywords
seaweeds; fatty acids; protein; ash
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The total lipid, protein, ash and individual fatty acid contents of edible seaweeds that had been canned (Saccorhiza polyschides and Himanthalia elongata) or dried (H. elongata, Laminaria ochroleuca, Undaria pinnatifida, Palmaria sp. and Porphyra sp.) were determined (fatty acids by gas chromatography). Total lipid content ranged from 0.70+/-0.09 to 1.80+/-0.14 g/(100 g dry weight). The four most abundant fatty acids were C16:0, C18:1omega9, C20:4omega6 and C20:5omega3. Unsaturated fatty acids predominated in all the brown seaweeds studied, and saturated fatty acids in the red seaweeds, but both groups are balanced sources of omega3 and omega6 acids. Ash content ranged from 19.07+/-0.61 to 34.00+/-0.11 g/(100 g dry weight), and protein content from 5.46+/-0.16 to 24.11+/-1.03 g/(100 g dry weight). These protein, ash and omega3 and omega6 fatty acid contents show that processing (canning or drying) leaves these seaweeds with substantial nutritional value. (C) 2003 Elsevier Ltd. All rights reserved.
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