Starch yield sensitivity of maize hybrids to drying temperature and harvest moisture content

Vijay Singh, Armgard E. Haken, Marvin R Paulsen, Steven R. Eckhoff

Research output: Contribution to journalArticlepeer-review

Abstract

Nine maize hybrids from the 1994 crop, representing the range of hybrids grown in the U.S. central corn belt, were harvested at high (33-35%) and low (21-22%) moisture contents and laboratory dried at either ambient temperature (about 25°C) or 110°C. Similarly, nine maize hybrids from the 1995 crop were harvested at two different moisture contents and dried using either ambient temperature or 80°C. Both sets of samples were wet-milled using a 100g laboratory procedure. Significant differences were observed between hybrids as to the effect of drying air temperature and harvest moisture content on wet-milling yields. Eight of the 9 hybrids dried at 110 °C and harvested at high moisture contents showed significantly lower starch yields (by 7.2-15.1%) when compared to starch yields of the same hybrids dried at 110 °C and harvested at low moisture contents. Results also indicated that there is a hybrid-dependent effect of high-temperature drying and harvest moisture content at 80 °C drying air temperature. Starch yields of some hybrids harvested at low moisture contents are negatively affected if dried at 80 °C. However, there were mixed results on starch yields if the hybrids were harvested at high moisture contents and dried at 80 °C.

Original languageEnglish (US)
Pages (from-to)181-183
Number of pages3
JournalStarch/Staerke
Volume50
Issue number5
DOIs
StatePublished - May 1998

ASJC Scopus subject areas

  • Food Science
  • Organic Chemistry

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