Chemical composition and physicochemical properties of tropical red seaweed, Gracilaria changii

Patricia @ Patricia Clementina Matanjun, and Pei , Teng Chan (2016) Chemical composition and physicochemical properties of tropical red seaweed, Gracilaria changii. Food Chemistry (In Press, Accepted Manuscript ). ISSN 0308-8146


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The study on the proximate composition, minerals, vitamins, carotenoids, amino acids, fatty acids profiles and some physicochemical properties of freeze dried Gracilaria changii was conducted. It was discovered that this seaweed was high in dietary fibre (64.74 ± 0.82%), low in fat (0.30 ± 0.02%) and Na/K ratio (0.12 ± 0.02). The total amino acid content was 91.90 ± 7.70% mainly essential amino acids (55.87 ± 2.15 mg g-1) which were comparable to FAO/WHO requirements. The fatty acid profiles were dominated by the polyunsaturated fatty acids particularly docosahexaenoic (48.36 ± 6.76%) which lead to low ω6/ω3, atherogenic, and thrombogenic index. The physicochemical properties of this seaweed namely the water holding and the swelling capacity were comparable to some commercial fibre rich products. This study suggested that G. changii could be potentially used as ingredients to improve nutritive value and texture of functional foods for human consumption.

Item Type:Article
Uncontrolled Keywords:Amino acids, Dietary fibre, Fatty acids, Minerals, Seaweed, Water holding capacity
Subjects:T Technology > TP Chemical technology > TP368-456 Food processing and manufacture
Divisions:FACULTY > Faculty of Food Science and Nutrition
ID Code:14772
Deposited By:IR Admin
Deposited On:17 Nov 2016 11:08
Last Modified:17 Nov 2016 11:08

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