Journal article
Bioethanol production using genetically modified and mutant wheat and barley straws
Biomass & bioenergy, Vol.35(1), pp.542-548
2011
Handle:
https://hdl.handle.net/2376/116739
Abstract
To improve the performance of wheat and barley straws as feedstocks for ethanol biorefining, the genetic modifications of down regulating Cinnamoyl-CoA reductase and low phytic acid mutation have been introduced into wheat and barley respectively. In this study, total 252 straw samples with different genetic background and location were collected from the field experiment based on a randomized complete block design. The fiber analysis (neutral detergent fiber, acid detergent fiber, and acid detergent lignin) indicated that there were no significant differences between modified and wild type straw lines in terms of straw compositions. However, the difference did exist among straw lines on fiber utilization. 16 straw samples were further selected to conduct diluted acid pretreatment, enzymatic hydrolysis and fermentation. The data indicated that the phytic acid mutant and transgenic straws have changed the fiber structure, which significantly influences their hydrolysibility. These results may lead to a possible solution of mutant or genetic modified plant species that is capable to increase the hydrolysibility of biomass without changing their compositions and sacrificing their agronomy performance.
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Details
- Title
- Bioethanol production using genetically modified and mutant wheat and barley straws
- Creators
- Zhimin Li - Department of Biological Systems Engineering, Washington State University, L.J. Smith 213, Pullman, WA 99163, USAYan Liu - Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USAWei Liao - Biosystems and Agricultural Engineering, Michigan State University, East Lansing, MI 48824, USAShulin Chen - Department of Biological Systems Engineering, Washington State University, L.J. Smith 213, Pullman, WA 99163, USARobert S Zemetra - Plant, Soil, & Entomological Sciences, University of Idaho, Moscow, ID 83844, USA
- Publication Details
- Biomass & bioenergy, Vol.35(1), pp.542-548
- Academic Unit
- Biological Systems Engineering, Department of; Plant Pathology, Department of
- Publisher
- Elsevier Ltd
- Identifiers
- 99900548395201842
- Language
- English
- Resource Type
- Journal article