Journal
FOOD CHEMISTRY
Volume 79, Issue 1, Pages 23-26Publisher
ELSEVIER SCI LTD
DOI: 10.1016/S0308-8146(02)00171-1
Keywords
mineral content; edible seaweeds; marine macroalgae; sea vegetables; atomic absorption spectrophotometry
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Mineral content was determined in several brown (Fucus vesiculosus, Laminaria digitata, Undaria pinnatifida) and red (Chondrus crispus, Porphyra tenera) edible marine sea vegetables. Seaweeds contained high proportions of ash (21.1-39.3%) and sulphate (1.3-5.9%). In brown algae, ash content (30.1-39.3%) was higher than in red algae (20.6-21.1%). Atomic absorption spectrophotometry of the ashes indicated that marine seaweeds contained higher amounts of both macrominerals (8.083-17,875 mg/100g; Na, K, Ca, Mg) and trace elements (5.1-15.2 mg/100 g; Fe, Zn, Mn, Cu), than those reported for edible land plants. Edible brown and red seaweeds could be used as a food supplement to help meet the recommended daily intake of some essential minerals and trace elements. (C) 2002 Elsevier Science Ltd. All rights reserved.
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