Abstract:
PROBLEM TO BE SOLVED: To provide a method for separating one or more components of interest from a sample.SOLUTION: Rice hull ashes, oat hull ashes, or diatomaceous earth are used as silica filter media whose surface active groups have reacted with one or more silanes by silane treatment. The method comprises the steps of: (a) filtering a sample containing particulates and soluble materials through the treated silica filter media; (b) simultaneously capturing particulates and binding a soluble component of interest to the silica filter media; and (c) eluting the bound soluble component of interest from the silica filter media.
Abstract:
Systems and methods of functionalizing particulates are provided. A method of functionalizing particulates includes providing particulates to a reactor, fluidizing the particulates in substantial absence of solvents, providing a silane containing material to the fluidized particulates, and reacting the silane containing material with the fluidized particulates to provide silane-functionalized particulates. The silane-functionalized particulates may be utilized in separation media and other industrial applications.
Abstract:
The present invention provides a method for preventing or reducing off-flavor in a beverage. Silane-treated silica filter media are synthesized. By contacting the beverage with the silane-treated silica filter, one or more off-flavor substances or off-flavor precursors bind to the silane-treated silica filter media and are removed. Beverages that tend to develop off-flavor upon storage such as alcoholic, fruit, and vegetable beverages, are suitable for the present invention. The present invention provides a method that can reduce the level of off-flavor substances such as trans-2-nonenal, diacetyl, and cis-3-nonenal. The present invention also provides a method that can reduce the level of off-flavor precursors such as linoleic acid. The silica filter media useful for the present method include rice hull ash, oat hull ash, or diatomaceous earth.
Abstract:
A nanoparticle-polymer hybrid having a nanoparticle including a surface having a polymer grafted portion and a polymer incompatible portion. At least one polymer chain is grafted to the outer surface of the nanoparticle at the polymer grafted portion. The at least one polymer chain and polymer incompatible portion of the nanoparticle interact causing self assembly of the nanoparticle-polymer hybrid into an ordered material.
Abstract:
Silica surfaces are contacted with compositions containing organosilicon compounds to prepare modified silica fillers. The compositions contain only organosilicon compounds which are monomeric dichlorosilanes and trialkoxysilanes. The treating compositions may be: (i) mixtures or blends of dialkyldichlorosilanes, and trialkoxysilanes free of hydrocarbon or organofunctional groups reactive with silica surfaces; or (ii) mixtures or blends of substituted dialkyldichlorosilanes in which the substituted dialkyldichlorosilanes are free of hydrocarbon or organofunctional groups reactive with silica surfaces, and trialkoxysilanes free of hydrocarbon or organofunctional groups reactive with silica surfaces. These mixtures and blends contain dialkyldichlorosilanes and trialkoxysilanes in a weight ratio of 1:0 to 1:2, respectively.
Abstract:
Embodiments of a method for removing vicinal diols from a lactic acid fermentation broth comprise the steps of contacting the lactic acid fermentation broth with functionalized silica comprising at least one hydrophobic ligand to facilitate binding of the vicinal diols to the hydrophobic ligand, and separating the contacted lactic acid fermentation broth from the functionalized silica to remove the vicinal diols.
Abstract:
The present invention provides methods for separating one or more components of interest from a sample containing particulates and soluble materials. The method comprises the steps of: (a) filtering a sample through silica filter media whose surface silanol groups have been reacted with one or more silanes, and (b) simultaneously capturing particulates and binding a soluble component to the silica filter media. The bound soluble component of interest is subsequently eluted from the silica filter media. In one embodiment of the invention, unwanted soluble materials are captured by the treated silica filter media and desired component of interest is recovered from the flow-through. In another embodiment of the invention, different components of interest are recovered from both the eluate and the flow-through. Preferred treated silica filter media are silane-treated rice hull ash, oat hull ash, or diatomaceous earth.
Abstract:
The present invention provides a method for preventing or reducing haze development in a beverage. Silane-treated silica filter media are synthesized. By contacting the beverage with the silane-treated silica filter, one or more haze-forming components bind to the silane-treated silica filter media and are removed by filtration.