A green approach for alginate extraction from Sargassum muticum brown seaweed using ultrasound-assisted technique
A green approach for alginate extraction from Sargassum muticum brown seaweed using ultrasound-assisted technique
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DOI：
10.1016/j.ijbiomac.2018.11.232
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发表时间：
2019-03-01
影响因子：
8.2
通讯作者：
Torres, M. D.
中科院分区：
文献类型：
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作者：
Florez-Fernandez, N.;Dominguez, H.;Torres, M. D.
超声辅助水提法从马尾藻中提取海藻酸盐，最大限度地减少了化学品的使用、高温和长时间的使用，提取率与传统的酸/碱方法相当。超声波辅助提取褐藻多糖和绿藻单酸馏分得到的液中沉淀的褐藻酸盐，经绿色处理转化为褐藻酸钠盐，采用FTIR-ATR、H-1 NMR、HPSEC、MALDI-TOF、流变学和柠檬酸毒性等方法对其进行了表征。超声时间对藻酸盐摩尔质量、块结构、热流变学和肿瘤细胞生长抑制特性有明显影响。所有测试的水凝胶都具有稳定和热可逆的特性。(C) 2018 Elsevier B.V.版权所有
Ultrasound assisted aqueous extraction of alginate from Sargassum muticurn was proposed to minimize the use of chemicals, high temperatures and prolonged times, with comparable extraction yields to conventional acid/alkali procedures. The alginate, precipitated from the liquors obtained after ultrasound assisted extraction of fucoidan and phlorotannin fractions, and converted to alginic acid sodium salt by a green treatment was characterized by FTIR-ATR, H-1 NMR, HPSEC, MALDI-TOF, rheology and citotoxitity. A clear influence of the sonication time was observed on the alginate molar mass, block structure, thermo-rheological and tumoral cell growth inhibition features. All tested hydrogels featured stable and thermo-reversible characteristics. (C) 2018 Elsevier B.V. All rights reserved.