Porous alpha-1,3-glucan compositions
AssigneeNutrition & Biosciences USA 4, Inc.
InventorsSefiu A. Rasaki, Steven L. Bryant, Milana Trifkovic, Natnael Behabtu, Christian Lenges
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Abstract
Compositions are disclosed herein comprising an aerogel or a hydrogel. The aerogel or hydrogel comprises water-insoluble alpha-glucan and metal oxide. At least about 50% of the glycosidic linkages of the water-insoluble alpha-glucan are alpha-1,3 linkages, and the metal oxide is selected from calcium oxide, magnesium oxide, titanium dioxide, or any other suitable metal oxide. Methods of producing aerogels and hydrogels are also disclosed, as well as methods of using these materials, such as in absorption techniques. Other types of materials containing water-insoluble alpha-glucan are also disclosed.
Claims20
A composition comprising an aerogel, wherein the aerogel comprises a water-insoluble alpha-glucan and a metal oxide, wherein at least about 50% of the glycosidic linkages of the insoluble alpha-glucan are alpha-1,3 linkages, and wherein the metal oxide is calcium oxide (CaO), magnesium oxide (MgO), or titanium dioxide (TiO2).
An aqueous caustic solution comprising (i) an aqueous caustic solvent, (ii) a water-insoluble alpha-glucan, and (iii) a metal hydroxide,
- wherein at least about 50% of the glycosidic linkages of the water-insoluble alpha-glucan are alpha-1,3 glycosidic linkages,
- wherein the water-insoluble alpha-glucan is dissolved in the aqueous caustic solvent and the metal hydroxide is not dissolved in the aqueous caustic solvent, and
- wherein the metal hydroxide is calcium hydroxide, magnesium hydroxide, or titanium hydroxide.
Dependencies are inferred from the claim text.