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 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.
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