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United States Department of Agriculture

Agricultural Research Service

Title: Z-Trim Cellulosic Fiber Gel from Maize Biofuels Waste: Technological Development and Nutritional Properties

item Inglett, George

Submitted to: Association Official Analytical Chemists Annual Intrl Meeting & Exposition
Publication Type: Abstract Only
Publication Acceptance Date: February 15, 2000
Publication Date: N/A

Technical Abstract: Cellulosic fiber gel substances were prepared from maize husks, a byproduct of the biofuels industry, by chemically and physically treating the pericarp cell wall substrate in a multistage process to disintegrate their morphological cellular structure. Thermal alkaline degradation was used with impact shear in the first stage, followed by alkaline peroxidation and shear in the second stage. The degradation products were removed in the liquid centrifugates at each stage. The maize fiber gels are characterized by high viscosities and hydration capacities. After drying, they can be reconstituted by using shear forces to the original gel form. The fiber gels were also co-dried with hydrophilic materials to make their reconstitution to gel form easier. The alkaline extracted hemicellulose effluents from the fiber gel preparation, including the second stage peroxidized extract, were purified and used as a co-dried hydrophilic material. Also, an amylodextrin, oat flour hydrolysate, was used as a hydrophilic material. The cellulosic gel is capable of reducing caloric content in a wide variety of foods. More nutritious foods were prepared with greatly decreased saturated and trans fat contents. Worldwide license of the technology is available.

Last Modified: 4/22/2015
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