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Assaying Sorghum for Fuel Production

Book ·
 [1];  [1];  [1]
  1. National Renewable Energy Laboratory (NREL), Golden, CO (United States)
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The publicly available NREL suite of laboratory analytical procedures (LAPs) provides researchers with the analytical tools to determine the composition of woody and herbaceous feedstocks. Feedstock characterization includes several steps: sample preparation, starch determination, moisture analysis, ashing, extraction, and hydrolysis. These steps provide information on specific compounds and classes of compounds such as ash, protein, moisture, extractives, sucrose, starch, glucan, xylan, galactan, arabinan, acetate and lignin. Here, we describe the use of these procedures to characterize sorghum [Sorghum bicolor (L.) Moench] with specific consideration of four main sorghum types: grain, forage, sweet, and biomass, which can vary significantly in composition. Special attention is paid to the extraction and the differentiation of glucose from starch and glucan from cellulose in the hybrids with significant amounts of nonstructural carbohydrates.
Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Bioenergy Technologies Office (EE-3B)
DOE Contract Number:
AC36-08GO28308
OSTI ID:
1492932
Report Number(s):
NREL/CH-5100-71697
Country of Publication:
United States
Language:
English

References (9)

Genetic Improvement of Sorghum as a Biofuel Feedstock: II. QTL for Stem and Leaf Structural Carbohydrates journal January 2008
Compositional Analysis of Lignocellulosic Feedstocks. 2. Method Uncertainties journal August 2010
Degradation of Carbohydrates during Dilute Sulfuric Acid Pretreatment Can Interfere with Lignin Measurements in Solid Residues journal March 2013
Designing sorghum as a dedicated bioenergy feedstock journal October 2007
Genetic Improvement of Sorghum as a Biofuel Feedstock: I. QTL for Stem Sugar and Grain Nonstructural Carbohydrates journal January 2008
Compositional Analysis of Lignocellulosic Feedstocks. 1. Review and Description of Methods
  • Sluiter, Justin B.; Ruiz, Raymond O.; Scarlata, Christopher J.
  • Journal of Agricultural and Food Chemistry, Vol. 58, Issue 16, p. 9043-9053 https://doi.org/10.1021/jf1008023
journal August 2010
Multivariate Calibration Models for Sorghum Composition using Near-Infrared Spectroscopy report March 2013
Variation in Biomass Composition Components among Forage, Biomass, Sorghum-Sudangrass, and Sweet Sorghum Types journal January 2012
Compositional and Agronomic Evaluation of Sorghum Biomass as a Potential Feedstock for Renewable Fuels journal December 2011

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Related Subjects

09 BIOMASS FUELS
LAPs
cellulose
characterization
glucan
hemicellulose
lignin
lignocellulose
nonstructural carbohydrates
sorghum
starch
structural carbohydrates
xylan