马尾藻
褐藻
海藻酸钠
褐藻
萃取(化学)
碳酸钠
钠
化学
多糖
藻类
植物
色谱法
食品科学
生物
生物化学
有机化学
作者
G.D.T.M. Jayasinghe,B.K.K.K. Jinadasa,N. A. G. Sadaruwan
出处
期刊:Discover Food
[Springer Nature]
日期:2022-01-04
卷期号:2 (1)
被引量:4
标识
DOI:10.1007/s44187-021-00001-5
摘要
Abstract Alginates are natural polysaccharides that are extracted from brown seaweed varieties and it is widely used for their rheological properties. The main step in the extraction protocol of sodium alginate is alkaline extraction. Sodium alginate was produced by dipping the seaweed in 1% formaldehyde and 2.5% of sodium carbonate solution and properties were studied following the standard methods. The amount of sodium alginate yield was 31.7% in Sargassum wightii . The moisture content and the ash content were recorded at 16.82% and 5.20%, respectively. The viscosity and the gel strength were noted as 40 vcP, 4.54 × 10 –2 kN with 0.1 M CaCl 2 and 6.86 × 10 –2 kN with 0.2 M CaCl 2 respectively. This study of the extraction method and its properties reveal that Sargassum wightii brown seaweed species have a high affinity to extract the alginate.
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