Corroborative study on maize quality, dry-milling and wet-milling properties of selected maize hybrids

Kyung Min Lee, Timothy J. Herrman, Lloyd Rooney, David S. Jackson, Jane Lingenfelser, Kent D. Rausch, John McKinney, Chris Iiams, Linda Byrum, Charles R. Hurburgh, Lawrence A. Johnson, Steven R. Fox

Research output: Contribution to journalArticlepeer-review


A corroborative study was conducted on the maize quality properties of test weight, pycnometer density, tangential abrasive dehulling device (TADD), time-to-grind on the Stenvert hardness tester (SHT), 100-kernel weight, kernel size distribution, and proximate composition as well as maize dry-and wet-millability by six participating laboratories. Suggested operating procedures were given to compare their measurements and provide the variance structure within and between laboratories and hybrids. Partial correlation coefficient among maize quality properties varied among laboratories. The repeatability and reproducibility precision values were acceptably low for the physical quality tests, except for TADD and SHT time-to-grind measurements. The yields of dry- and wet-milled products and their correlation with maize quality properties were dependent on the collaborating laboratory. This paper highlights the importance of laboratory variation when considering which maize hybrids are best suited for dry-milling and wet-milling.

Original languageEnglish (US)
Pages (from-to)10751-10763
Number of pages13
JournalJournal of Agricultural and Food Chemistry
Issue number26
StatePublished - Dec 26 2007


  • Dry-milling
  • Maize quality property
  • Outlier
  • Repeatability
  • Reproducibility
  • Variation
  • Wet-milling

ASJC Scopus subject areas

  • General Chemistry
  • General Agricultural and Biological Sciences


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