title: Hydrothermal conversion of big bluestem for bio-oil production: the effect of ecotype and planting location.
abstract: Three ecotypes (CKS, EKS, IL) and one cultivar (KAW) of big bluestem (Andropogon gerardii) that were planted in three locations (Hays, KS; Manhattan, KS; and Carbondale, IL) were converted to bio-oil via hydrothermal conversion. Significant differences were found in the yield and elemental composition of bio-oils produced from big bluestem of different ecotypes and/or planting locations. Generally, the IL ecotype and the Carbondale, IL and Manhattan, KS planting locations gave higher bio-oil yield, which can be attributed to the higher total cellulose and hemicellulose content and/or the higher carbon but lower oxygen contents in these feedstocks. Bio-oil from the IL ecotype also had the highest carbon and lowest oxygen contents, which were not affected by the planting location. Bio-oils from big bluestem had yield, elemental composition, and chemical compounds similar to bio-oils from switchgrass and corncobs, although mass percentages of some of the compounds were slightly different.
authors.affiliation: Department of Biological and Agricultural Engineering, Kansas State University, Manhattan, KS 66506, United States.
authors.forename: Jing
authors.initials: J
authors.lastname: Gan
authors.forename: Wenqiao
authors.initials: W
authors.lastname: Yuan
authors.forename: Loretta
authors.initials: L
authors.lastname: Johnson
authors.forename: Donghai
authors.initials: D
authors.lastname: Wang
authors.forename: Richard
authors.initials: R
authors.lastname: Nelson
authors.forename: Ke
authors.initials: K
authors.lastname: Zhang
mesh_terms: D000704:Analysis of Variance; D031722:Andropogon / Q000145:classification / Q000187:drug effects / Q000254:growth & development*; D056804:Biofuels / Q000032:analysis*; D001709:Biotechnology / Q000379:methods*; D002244:Carbon / Q000032:analysis; D002482:Cellulose / Q000494:pharmacology; D060146:Ecotype; D008401:Gas Chromatography-Mass Spectrometry; D005843:Geography; D010100:Oxygen / Q000032:analysis; D008897:Panicum / Q000187:drug effects / Q000378:metabolism; D010938:Plant Oils / Q000378:metabolism*; D011134:Polysaccharides / Q000494:pharmacology; D013696:Temperature; D014867:Water / Q000737:chemistry*; D003313:Zea mays / Q000187:drug effects / Q000378:metabolism
chemical_list: D056804:Biofuels; D010938:Plant Oils; D011134:Polysaccharides; D014867:Water; D002244:Carbon; C007916:hemicellulose; D002482:Cellulose; D010100:Oxygen