The great deal of co-products such as dried distiller grains
with solubles (DDGS) has been produced with the high use of
cereal grains (corn, wheat and barley) as energy stocks for
ethanol and beer producing. Due to starch removal, the
remaining chemical components in the distillers grains
products become concentrated approximately threefold
compare to the parent grain [8,9]. Since its high protein content,
DDGS has become a protein sourced feedstuff and is
widely used in animal feed and livestock production industry.
A systematical study on dry matter, mineral and other
nutrient profiles of these co-products has been conducted
using conventional ‘wet’ chemical analysis. On the other
hand, several studies have been reported the information
with protein structures. Especially the unique studies on
correlation between protein molecular structure spectra and
protein chemical and nutrient profiles, protein utilization and
availability have been conducted by our research team in
recent years. However, the research report how the molecular
structure changes were associated with nutrient availability
in the rumen and intestinal and total nutrient supply is still
limited. Therefore, study on the protein molecular structures
of these co-products can help us to have a better understanding
to protein nutritional value.
The great deal of co-products such as dried distiller grainswith solubles (DDGS) has been produced with the high use ofcereal grains (corn, wheat and barley) as energy stocks forethanol and beer producing. Due to starch removal, theremaining chemical components in the distillers grainsproducts become concentrated approximately threefoldcompare to the parent grain [8,9]. Since its high protein content,DDGS has become a protein sourced feedstuff and iswidely used in animal feed and livestock production industry.A systematical study on dry matter, mineral and othernutrient profiles of these co-products has been conductedusing conventional ‘wet’ chemical analysis. On the otherhand, several studies have been reported the informationwith protein structures. Especially the unique studies oncorrelation between protein molecular structure spectra andprotein chemical and nutrient profiles, protein utilization andavailability have been conducted by our research team inrecent years. However, the research report how the molecularstructure changes were associated with nutrient availabilityin the rumen and intestinal and total nutrient supply is stilllimited. Therefore, study on the protein molecular structuresof these co-products can help us to have a better understandingto protein nutritional value.
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