Corn-milling pretreatment with anhydrous ammonia

Frank Taylor; James C. Craig; M. J. Kurantz; Vijay Singh

doi:10.1385/ABAB:104:2:141

Corn-milling pretreatment with anhydrous ammonia

Frank Taylor, James C. Craig, M. J. Kurantz, Vijay Singh

Research output: Contribution to journal › Article › peer-review

Abstract

Exposure to anhydrous ammonia has been suggested as a pretreatment for corn milling. Batches of corn were exposed to ammonia under controlled conditions. The amounts of ammonia absorbed and reacted with the corn were measured. The amounts were not more than are needed as nutritional supplement for yeast fermentation to ethanol. Loosening of the hull was observed qualitatively, and subsequent shearing in a disk mill followed by steeping for 2, 4, 6, or 8 h showed that germ could be recovered at higher yield and after a shorter steeping time compared to untreated control batches. Quality of oil was not affected by treatment with ammonia.

Original language	English (US)
Pages (from-to)	141-148
Number of pages	8
Journal	Applied Biochemistry and Biotechnology - Part A Enzyme Engineering and Biotechnology
Volume	104
Issue number	2
DOIs	https://doi.org/10.1385/ABAB:104:2:141
State	Published - Feb 1 2003

Keywords

Ammonia
Corn
Ethanol
Fermentation
Milling
Pretreatment
Steeping

ASJC Scopus subject areas

Biotechnology
Bioengineering
Biochemistry
Applied Microbiology and Biotechnology
Molecular Biology

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AU - Singh, Vijay

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AB - Exposure to anhydrous ammonia has been suggested as a pretreatment for corn milling. Batches of corn were exposed to ammonia under controlled conditions. The amounts of ammonia absorbed and reacted with the corn were measured. The amounts were not more than are needed as nutritional supplement for yeast fermentation to ethanol. Loosening of the hull was observed qualitatively, and subsequent shearing in a disk mill followed by steeping for 2, 4, 6, or 8 h showed that germ could be recovered at higher yield and after a shorter steeping time compared to untreated control batches. Quality of oil was not affected by treatment with ammonia.

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KW - Corn

KW - Ethanol

KW - Fermentation

KW - Milling

KW - Pretreatment

KW - Steeping

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JO - Applied Biochemistry and Biotechnology

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Corn-milling pretreatment with anhydrous ammonia

Abstract

Keywords

ASJC Scopus subject areas

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