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Agricultural residues such as corn fiber, rice hulls and wheat straw can be used as abundant low-cost feedstock for production of fuel ethanol. However, the cost of cellulase enzymes to saccharify cellulose to glucose is a major hindrance. As an alternative, a novel process to obtain industrially important cellulose acetate from these by-products after removing hemicellulosic sugars was developed...
The yellow color of corn and corn processing co-products is due to xanthophylls and β-carotene. Colorless zein commands a premium price and the resulting extracted carotenoids possess nutraceutical value. Our objectives were to devise methods for decolorizing zein and develop methodology to quantify color removal. Decolorizing methods include: subcritical propane and supercritical fluid extraction...
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