Depolymerization of sodium alginate under hydrothermal conditions
Depolymerization of sodium alginate under hydrothermal conditions
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DOI：
10.1016/j.carbpol.2009.11.032
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发表时间：
2010-03-25
影响因子：
11.2
通讯作者：
Smith, Richard L., Jr.
中科院分区：
文献类型：
--
作者：
Aida, Taku Michael;Yamagata, Takuji;Smith, Richard L., Jr.
采用水热法（180 ~ 240℃）对海藻酸钠进行解聚，了解其生成单糖的选择性。海藻酸解聚成低聚糖、单糖和分解产物，包括乳酸和乙醇酸。藻酸盐在水热条件下解聚，首先释放甘露醛酸(M)，然后释放古鲁醛酸(G)。单糖是通过水解M-M、M-G和G-G单元之间具有不同选择性的单体之间的糖苷键而产生的，而不是海藻酸盐中随机的位点。水热处理作为一种修饰藻酸盐聚合物结构的方法显示出很大的希望。爱思唯尔有限公司2009年版权所有版权所有。
The depolymerization of sodium alginate with hydrothermal treatment (180-240 degrees C) was studied to understand the selectivity of monosaccharide generation. Alginate depolymerized to oligosaccharides, monosaccharides and decomposition products that included lactic acid and glycolic acid. Alginate depolymerization under hydrothermal conditions occurred in a manner that initially released mannuronic acid (M) and then was followed by the release of guluronic acid (G). Monosaccharides were generated through the hydrolysis of the glycosidic bonds between the unit monomer with different selectivities among M-M, M-G and G-G units rather than random sites within alginate. Hydrothermal treatments shows promise as a method to modify the structure of alginate polymers. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.