Fractional composition of grain sorghum (Sorghum bicolor) after wet-peeling in a centrifugal pump

K. R. Lochte-Watson, C. L. Weller, K. M. Eskridge

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Use of a centrifugal pump to peel and facilitate separation of grain sorghum kernels into three fractions was investigated. Special emphasis was given to separating fractions to achieve a high concentration of wax in one fraction and a high concentration of starch in another. Trials were conducted to determine the effects of both soak time and recirculation time on wet-peeling. After peeling, three fractions, peeled kernel, bran, and suspended solids, were collected. Together, the bran and suspended solids fractions contained 12.7% of the initial total dry solids, 90% of initial wax, and 8.1% of the initial starch. Peeled kernel fraction accounted for 84% of the initial dry material, which contained 94% of the initial starch with 8.5% of the initial wax. Circulation through the pump for 5 min resulted in over 90% of the wax being concentrated in bran and suspended solids fractions, and over 90% of the starch was recovered in peeled kernel fractions. Soaking for 10 min versus no soaking increased the starch available in the peeled kernel fraction to 94%. Circulation time through the centrifugal pump had a more significant effect on separation of constituents than the soak periods studied.

Original languageEnglish (US)
Pages (from-to)253-258
Number of pages6
JournalApplied Engineering in Agriculture
Volume16
Issue number3
StatePublished - May 1 2000

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centrifugal pumps
Sorghum
Peeling
peeling
Centrifugal pumps
grain sorghum
Starch
Sorghum bicolor
Waxes
waxes
starch
bran
seeds
Chemical analysis
soaking
pumps
Pumps

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Fractional composition of grain sorghum (Sorghum bicolor) after wet-peeling in a centrifugal pump. / Lochte-Watson, K. R.; Weller, C. L.; Eskridge, K. M.

In: Applied Engineering in Agriculture, Vol. 16, No. 3, 01.05.2000, p. 253-258.

Research output: Contribution to journalArticle

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