Institute of Marine Science, National Research Council (CNR), via Pola 4, 71010 Lesina, Italy.
Carbohydr Polym. 2013 Feb 15;92(2):1555-60. doi: 10.1016/j.carbpol.2012.11.005. Epub 2012 Nov 10.
Porous agar materials have been prepared from marine macroalgae species using a simple microwave-assisted extraction/drying methodology, providing a new family of polysaccharide derived porous solids. The microwave-assisted extraction allows a more efficient and less time-consuming extraction of the polysaccharide compared to conventional extraction protocols based on conventional heating. DRIFT and (13)C NMR results indicated that the internal agar structure (based on d-galactose and 3,6-anhydro-l-galactose linked units) was preserved after the extraction methodology, which opens a wide range of future possibilities and applications for this new family of porous polysaccharides. The extracted agar materials, which have already applications per se due to their high purities, could be subsequently transformed into a novel family of attractive mesoporous agar materials that could be used as natural templates for the production of nanocrystals of metal oxides.
采用简单的微波辅助提取/干燥方法，从海洋大型藻类中制备了多孔琼脂材料，为多糖衍生的多孔固体提供了一个新家族。与基于常规加热的常规提取方法相比，微波辅助提取能够更有效地提取多糖，且用时更短。DRIFT 和 (13)C NMR 结果表明，在提取方法之后，内部琼脂结构（基于 d-半乳糖和 3,6-脱水-l-半乳糖连接单元）得以保留，这为这种新型多孔多糖家族开辟了广泛的未来可能性和应用。这些已被提取的琼脂材料本身由于其高纯度而具有应用价值，它们可以进一步转化为新型的有吸引力的中孔琼脂材料，可用作金属氧化物纳米晶体生产的天然模板。
