期刊
CARBOHYDRATE POLYMERS
卷 92, 期 2, 页码 1555-1560出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2012.11.005
关键词
Gracilaria; Microwave extraction; Porous materials
资金
- project Macroalghe della laguna di Lesina: potenziali sorgenti di prodotti naturali di uso farmaceutico e alimentare (MADLENA)
- Fondazione Cassa di Risparmio di Puglia (Italy)
- Spanish MICINN via the concession of a RyC [RYC 2009-04199]
- Consejeria de Ciencia e Innovacion, Junta de Andalucia [P1O-FQM-6711]
- MICINN [CTQ2010-18126, CTQ2011 28954-C02-02]
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 C-13 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. (C) 2012 Elsevier Ltd. All rights reserved.
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