Genetic Improvement of Switchgrass and Other Herbaceous Plants for Use as Biomass Fuel Feedstock

Vogel, Kenneth P.

doi:10.2172/777678

Cited by 2 publications

(5 citation statements)

References 63 publications

(82 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Switchgrass, a perennial C4 type warm-season grass native to the prairies of North America, has been identified by the U.S. Department of Energy as its main species of emphasis for development into a herbaceous biomass fuel crop (Vogel, Jung, 2000). The species is able to adapt to growth in different latitudes (Fike et al, 2006).…”

Section: Introductionmentioning

confidence: 99%

“…The most important factor, affecting biomass yield and its quality, including cellwall chemical composition, is grass maturity or harvesting time. Cell walls account for 40% to 80% of the biomass in herbaceous plants, depending on species and maturity of the plant material (Vogel, Jung, 2000). Cellulose and hemicellulose are the major polysaccharides of plant cell walls.…”

Section: Introductionmentioning

confidence: 99%

“…Lignin (a polyphenolic polymer) comprises a substantial portion (~20%) of the grass secondary cell wall and essentially fills the pores between the polysaccharides (Vogel, 2008). As plants mature, wall composition shifts from almost no lignin to its substantial amounts (20-30%) (Vogel, Jung, 2000). High content of lignin is especially undesirable in the biomass used as bioenergy feedstock for methane and lignocellulosic bioethanol production.…”

Section: Introductionmentioning

confidence: 99%

“…Sink-source dynamics within the plant direct how much, where, and when carbohydrates are allocated, as well as determine the harvestable tissue (Slewinski, 2012). Plant morphology has a major impact on C-containing compounds, cell-wall concentration and composition of herbaceous plants due to differences between leaves and stems ratio (Vogel, Jung, 2000). Results of many researches show, that cell walls of grass stems do tend to be more lignified than leaves (Mann et al, 2009 and others); however, there exists the opposite data also (Hu et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Butkutė

Lemežienė

Cesevičienė

et al. 2013

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

Approaching switchgrass (Panicum virgatum L.) as a multifunctional energy plant, it is important to comprehensively study the composition and partitioning of organic substances in the biomass. The character of carbohydrates and lignin concentration variation was assessed in switchgrass biomass cut at two maturity stages (heading and seed filling) in the first and second harvest years. Quality components partitioning in the biomass of aboveground plant parts was examined in leaves, stems and panicles of the most productive switchgrass accessions cut at seed filling. The concentrations of lignocellulose (NDF), cellulose (Cel), sum of structural carbohydrates (holocellulose -HoCel), sum of nonstructural and structural carbohydrates (ΣCH 2 O) and lignin in switchgrass biomass of both plant development stages in the second harvest year were significantly higher, whereas an average hemicellulose (HCel) concentration was significantly lower compared with the respective parameters in the first harvest year. The concentrations of nonstructural carbohydrates (NSC) and their individual fractions (water soluble carbohydrates (WSC) and starch) in biomass were similar both in the first and second harvest years. The concentrations of NDF, Cel, HoCel and ΣCH 2 O and particularly lignin at seed filling were significantly higher compared with the respective data at heading in both harvest years. High lignin concentration (105 g kg -1 dry matter (DM)) in switchgrass biomass at seed filling in the second harvest year showed its great suitability for solid biofuel production. Considerable amount of ΣCH 2 O (693-742 g kg -1 DM) indicated that switchgrass biomass at this stage fits for the second-generation bioethanol production. At heading, switchgrass in the second harvest year produced quite a high NSC yield (an average 28.4 g plant -1 ) and low lignin output (an average 19.3 g plant -1 ), which is a favourable feature of feedstock for biogas production, biomass at seed filling is less suitable for that than at heading. Switchgrass plant part significantly (P < 0.01) affected the concentration of all biomass quality attributes tested, but did not affect HCel concentration. Accessions' DM yield correlated positively with NDF (r = 0.781, P < 0.05), Cel (r = 0.882, P < 0.01) and lignin (r = 0.517) and negatively with WSC and NSC (r = −0.982, −0.959; P < 0.01).

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Butkutė

Lemežienė

Cesevičienė

et al. 2013

Zemdirbyste-Agriculture

View full text Add to dashboard Cite

show abstract

“…Switchgrass production are projected based on a series of papers from on-farm studies in North Dakota, South Dakota, Nebraska, and Minnesota [7][8][9]. Since switchgrass production does not involve any co-products, all environmental burdens are assigned to switchgrass.…”

Section: Feedstock Production and Harvestmentioning

confidence: 99%

Life Cycle Assessment of the Energy Independence and Security Act of 2007: Ethanol—Global Warming Potential and Environmental Emissions

Heath

Hsu

Inman

et al. 2009

ASME 2009 3rd International Conference on Energy Sustainability, Volume 1

View full text Add to dashboard Cite

Strategies to reduce the dependence of the United States on foreign oil, increase the use of renewable energy, and lessen the contribution to global warming have received significant attention. National adoption of such strategies could significantly impact America’s economy and security as well as global climate change. The Energy Independence and Security Act of 2007 (EISA) mandates specific renewable energy market penetration targets for the year 2022 [1]. For liquid transportation fuels, the 2022 EISA mandate is 36 billion gallons per year (bgy) of biofuel, of which 21 bgy must come from feedstocks other than corn starch. Despite this legal mandate for renewable biofuels, many questions remain unanswered with regard to the potential environmental effects of such a large increase in the production and use of biofuels. In addition to specifying volumetric standards for these renewable fuels, EISA establishes greenhouse gas mitigation standards. The objective of this study is to use life cycle assessment (LCA) to evaluate the global warming potential (GWP), water use, and net energy value (NEV) associated with the EISA-mandated 16 bgy cellulosic biofuels target, which is assumed in this study to be met by cellulosic-based ethanol, and the EISA-mandated 15 bgy conventional corn ethanol target. Specifically, this study compares, on a per-kilometer-driven basis, the GWP, water use, and NEV for the year 2022 for several biomass feedstocks.

show abstract

Genetic Improvement of Switchgrass and Other Herbaceous Plants for Use as Biomass Fuel Feedstock

Cited by 2 publications

References 63 publications

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Carbohydrate and lignin partitioning in switchgrass biomass (Panicum virgatum L.) as a bioenergy feedstock

Life Cycle Assessment of the Energy Independence and Security Act of 2007: Ethanol—Global Warming Potential and Environmental Emissions

Contact Info

Product

Resources

About