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Biomedical Engineering and Bioengineering Commons

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Chemical and Biological Engineering Publications

1993

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Full-Text Articles in Biomedical Engineering and Bioengineering

Low Molecular Weight Organic Composition Of Ethanol Stillage From Corn, Michael K. Dowd, Peter J. Reilly, Walter S. Trahanovsky Mar 1993

Low Molecular Weight Organic Composition Of Ethanol Stillage From Corn, Michael K. Dowd, Peter J. Reilly, Walter S. Trahanovsky

Chemical and Biological Engineering Publications

Filtered stillage from the distillation of ethanol made by yeast fermentation of hydrolyzed corn starch was subjected to gas chromatography-mass spectroscopy and to high-performance liquid chromatography. Nearly all the major chromatographic peaks were identified and quantified. Low molecular weight organics in the soluble part of corn stillage were lactic acid, glycerol, and alanine, as well as smaller amounts of ethanol, and various nonnitrogenous and nitrogenous acids, polyhydroxy alcohols, sugars, and glucosides.