| Popis: |
In dry-grind corn processing, the whole kernel is fermented to produce ethanol and distillers dried grains with solubles (DDGS); the E-Mill process was developed to generate coproducts in addition to DDGS. Compositions of thin stillage and wet grains obtained from the E-Mill process will be different from the dry-grind process. Knowledge of thin stillage compositions will provide information to improve coproducts from both processes. Laboratory dry-grind and E-Mill processes that used granular starch hydrolyzing enzymes (GSHE) were compared and process yields determined. Two methods, centrifugation and screening, were used to produce thin stillage and wet grains from the laboratory processes. Compositions of process streams were determined. In the dry-grind process using GSHE, solids contents of beer, whole stillage, and wet grains were higher compared to the same fractions from the E-Mill process using GSHE. Solids contents of mash for both processes were similar. Total solids, soluble solids, a... |
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