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Development of Highly Digestible Grain Sorghum Lines Suitable for Efficient Dry-Grind Ethanol Production

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Document pages: 21 pages

Abstract: Low-world oil prices but supportive government policies provide growingenvironmental and energy security support favorable for the bioethanol market. The need to generate large and sustainable supply of biomass to makebioethanol will require the development of crops grown specifically forbioenergy production. Given the existing history of genetic improvement andinfrastructure available for sorghum, (Sorghum bicolor L.Moench) hybrids will be one of the several species dedicated as energy crop and the subject of this study.Texas A & M University Sorghum Breeding Program has developed hybridsorghum varieties with high protein digestibility and improved starchdigestibility. Most of the previous research on grain sorghum focused on thedigestibility of sorghum protein from the nutritional point of view. The aim ofthe current study was to select best sorghum lines from  relatively large and diversesorghum samples that breeders are currently working with for thedevelopment of new low energy input liquefaction, saccharification andfermentation methodologies to produce bioethanol. Limited researches studiesreport on the performance of sorghum varieties in ethanol fermentation in relationto the protein and starch digestibility of sorghum.

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