PMID- 18448335
OWN - NLM
STAT- MEDLINE
DCOM- 20081113
LR  - 20151119
IS  - 0960-8524 (Print)
IS  - 0960-8524 (Linking)
VI  - 99
IP  - 17
DP  - 2008 Nov
TI  - Particle size distribution of distillers dried grains with solubles (DDGS) and 
      relationships to compositional and color properties.
PG  - 8421-8
LID - 10.1016/j.biortech.2008.02.060 [doi]
AB  - Eleven distillers dried grains with solubles (DDGS), processed from yellow corn, 
      were collected from different ethanol processing plants in the US Midwest area. 
      Particle size distribution (PSD) by mass of each sample was determined using a 
      series of six selected US standard sieves: Nos. 8, 12, 18, 35, 60, and 100, and a 
      pan. The original sample and sieve sized fractions were measured for surface 
      color and contents of moisture, protein, oil, ash, and starch. Total carbohydrate 
      (CHO) and total non-starch CHO were also calculated. Results show that there was 
      a great variation in composition and color among DDGS from different plants. 
      Surprisingly, a few DDGS samples contained unusually high amounts of residual 
      starch (11.1-17.6%, dry matter basis, vs. about 5% of the rest), presumably 
      resulting from modified processing methods. Particle size of DDGS varied greatly 
      within a sample and PSD varied greatly among samples. The 11 samples had a mean 
      value of 0.660mm for the geometric mean diameter (dgw) of particles and a mean 
      value of 0.440mm for the geometric standard deviation (Sgw) of particle diameters 
      by mass. The majority had a unimodal PSD, with a mode in the size class between 
      0.5 and 1.0mm. Although PSD and color parameters had little correlation with 
      composition of whole DDGS samples, distribution of nutrients as well as color 
      attributes correlated well with PSD. In sieved fractions, protein content, L and 
      a color values negatively while contents of oil and total CHO positively 
      correlated with particle size. It is highly feasible to fractionate DDGS for 
      compositional enrichment based on particle size, while the extent of PSD can 
      serve as an index for potential of DDGS fractionation. The above information 
      should be a vital addition to quality and baseline data of DDGS.
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 83201, USA. 
      Keshun.Liu@ars.usda.gov
LA  - eng
PT  - Journal Article
DEP - 20080429
PL  - England
TA  - Bioresour Technol
JT  - Bioresource technology
JID - 9889523
RN  - 0 (Particulate Matter)
RN  - 0 (Plant Oils)
RN  - 0 (Plant Proteins)
RN  - 9005-25-8 (Starch)
SB  - IM
MH  - Color
MH  - Edible Grain/*chemistry
MH  - *Particle Size
MH  - Particulate Matter/chemistry
MH  - Plant Oils/analysis
MH  - Plant Proteins/analysis
MH  - Solubility
MH  - Starch/analysis
MH  - Surface Properties
EDAT- 2008/05/02 09:00
MHDA- 2008/11/14 09:00
CRDT- 2008/05/02 09:00
PHST- 2008/01/02 00:00 [received]
PHST- 2008/02/25 00:00 [revised]
PHST- 2008/02/25 00:00 [accepted]
PHST- 2008/05/02 09:00 [pubmed]
PHST- 2008/11/14 09:00 [medline]
PHST- 2008/05/02 09:00 [entrez]
AID - S0960-8524(08)00249-6 [pii]
AID - 10.1016/j.biortech.2008.02.060 [doi]
PST - ppublish
SO  - Bioresour Technol. 2008 Nov;99(17):8421-8. doi: 10.1016/j.biortech.2008.02.060. 
      Epub 2008 Apr 29.