PMID- 19692227 OWN - NLM STAT- MEDLINE DCOM- 20091123 LR - 20090831 IS - 1873-2976 (Electronic) IS - 0960-8524 (Linking) VI - 100 IP - 24 DP - 2009 Dec TI - Fractionation of distillers dried grains with solubles (DDGS) by sieving and winnowing. PG - 6559-69 LID - 10.1016/j.biortech.2009.07.053 [doi] AB - Four commercial samples of distillers dried grains with solubles (DDGS) were sieved. All sieved fractions except for the pan fraction, constituting about 90% of original mass, were then winnowed with an air blast seed cleaner. Sieving was effective in producing fractions with varying composition. As the particle size decreased, protein and ash contents increased, and total carbohydrate (CHO) decreased. Winnowing sieved fractions was also effective in shifting composition, particularly for larger particle classes. Heavy sub-fractions were enriched in protein, oil and ash, while light sub-fractions were enriched for CHO. For protein, the combination of the two procedures resulted in a maximum 56.4% reduction in a fraction and maximum 60.2% increase in another fraction. As airflow velocity increased, light sub-fraction mass increased, while the compositional difference between the heavy and light sub-fractions decreased. Winnowing three times at a lower velocity was as effective as winnowing one time at a medium velocity. Winnowing the whole DDGS was much less effective than winnowing sieved fractions in changing composition, but sieving winnowed fractions was more effective than sieving whole DDGS. The two combination sequences gave comparable overall effects but sieving followed by winnowing is recommended because it requires less time. Regardless of combinational sequence, the second procedure was more effective in shifting composition than the first procedure. FAU - Liu, KeShun AU - Liu K AD - Grain Chemistry and Utilization Laboratory, National Small Grains and Potato Germplasm Research Unit, USDA-ARS, 1691 S. 2700 West, Aberdeen, ID 83210, United States. Keshun.Liu@ars.usda.gov LA - eng PT - Journal Article DEP - 20090818 PL - England TA - Bioresour Technol JT - Bioresource technology JID - 9889523 RN - 0 (Carbohydrates) RN - 0 (Plant Oils) RN - 0 (Plant Proteins) SB - IM MH - Air MH - Carbohydrates/analysis MH - Chemical Fractionation/*methods MH - Plant Oils/analysis MH - Plant Proteins/analysis MH - Seeds/*chemistry MH - Solubility EDAT- 2009/08/21 09:00 MHDA- 2009/12/16 06:00 CRDT- 2009/08/21 09:00 PHST- 2009/02/24 00:00 [received] PHST- 2009/07/13 00:00 [revised] PHST- 2009/07/18 00:00 [accepted] PHST- 2009/08/21 09:00 [entrez] PHST- 2009/08/21 09:00 [pubmed] PHST- 2009/12/16 06:00 [medline] AID - S0960-8524(09)00953-5 [pii] AID - 10.1016/j.biortech.2009.07.053 [doi] PST - ppublish SO - Bioresour Technol. 2009 Dec;100(24):6559-69. doi: 10.1016/j.biortech.2009.07.053. Epub 2009 Aug 18.