Effect of harvest moisture content and drying temperature on the extractable and fermentable corn starch

Ganti S. Murthy, Vijay Singh

Research output: Contribution to conferencePaper

Abstract

Two yellow dent corn hybrids (33A14 and 34B23) were harvested at three different moisture contents (13.9 to 53.7% dry basis) and dried at three temperatures (30, 60 and 9O0C). Extractable starch content was measured by a standard 100 g wet milling laboratory procedure. Whole corn samples were milled and liquefied by enzymatic hydrolysis. Liquefied mash was simultaneously saccharified and anaerobically fermented. Ethanol and sugar profiles in mash were monitored using an HPLC method. The harvest moisture content had a significant effect (a =0.05) on the starch yields for both hybrids. However, drying temperature had a significant effect on starch yields and ethanol concentrations for hybrid 34B23. Drying temperature had no effect on starch yields for hybrid 33A14. These results show that certain hybrids are more sensitive to harvest conditions and the post harvest processing.

Original languageEnglish (US)
StatePublished - Dec 1 2005
Event2005 ASAE Annual International Meeting - Tampa, FL, United States
Duration: Jul 17 2005Jul 20 2005

Other

Other2005 ASAE Annual International Meeting
CountryUnited States
CityTampa, FL
Period7/17/057/20/05

Keywords

  • Drying temperature
  • Ethanol yield and dry grind corn process
  • Harvest moisture content
  • Hybrid variability
  • Starch yield
  • Wet milling

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Bioengineering

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    Murthy, G. S., & Singh, V. (2005). Effect of harvest moisture content and drying temperature on the extractable and fermentable corn starch. Paper presented at 2005 ASAE Annual International Meeting, Tampa, FL, United States.