Effect of corn hybrid variability and planting location on dry grind ethanol production

V. Singh, J. V. Graeber

Research output: Contribution to journalArticlepeer-review


Eighteen different dent corn hybrids grown at multiple locations in the Midwestern U.S. were processed using a laboratory dry grind procedure to determine the effect of hybrid variability and planting location on final ethanol concentration in the fermenter. A selected number of hybrids were laboratory wet milled to determine the starch extractability and the correlation between the starch extractability and ethanol concentration. Hybrids also were analyzed for starch, protein, oil, and crude fiber content. The results showed that, overall, there was approximately 23% variability in ethanol concentration due to hybrid and planting locations. No significant correlation was observed between ethanol concentration and starch extractability or compositional data.

Original languageEnglish (US)
Pages (from-to)709-714
Number of pages6
JournalTransactions of the American Society of Agricultural Engineers
Issue number2
StatePublished - Mar 1 2005


  • Dry-grind ethanol
  • Ethanol concentration
  • Hybrid variability
  • Planting location
  • Starch extractability

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)


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