title: Low acid hydrothermal fractionation of Giant Miscanthus for production of xylose-rich hydrolysate and furfural.
abstract: Low acid hydrothermal (LAH) fractionation was developed for the effective recovery of hemicellulosic sugar (mainly xylose) from Miscanthus sacchariflorus Goedae-Uksae 1 (M. GU-1). The xylose yield was maximized at 74.75% when the M. GU-1 was fractionated at 180°C and 0.3wt.% of sulfuric acid for 10min. At this condition, the hemicellulose (mainly xylan) degradation was 86.41%. The difference between xylan degradation and xylose recovery yield, i.e., xylan loss, was 11.66%, as indicated by the formation of decomposed products. The furfural, the value added biochemical product, was also obtained by 0.42g/L at this condition, which was 53.82% of furfural production yield based on the xylan loss. After then, the furfural production continued to increase to a maximum concentration of 1.87g/L, at which point the xylan loss corresponded to 25.87%.
authors.affiliation: Department of Environmental Engineering, Kongju National University, Cheonan, Chungnam 31080, Republic of Korea.
authors.forename: Tae Hyun
authors.initials: TH
authors.lastname: Kim
authors.affiliation: R&D Center, SugarEn Co., Ltd., Cheonan, Chungnam 31116, Republic of Korea.
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: Ryu
authors.affiliation: Department of Applied Chemical Engineering, Dankook University, Cheonan, Chungnam 31116, Republic of Korea. Electronic address: kkoh@dankook.ac.kr.
authors.forename: Kyeong Keun
authors.initials: KK
authors.lastname: Oh
mesh_terms: D005591:Chemical Fractionation / Q000379:methods; D006109:Poaceae / Q000737:chemistry*; D013464:Sulfuric Acids; D014994:Xylose / Q000302:isolation & purification*
chemical_list: D013464:Sulfuric Acids; D014994:Xylose; C033158:sulfuric acid
keywords: Decomposition; Degradation; Furfural; Pretreatment; Sulfuric acid; Xylan