Consecutive Recovery of Non-Structural Sugars and Xylooligomers from Corn Stover using Hot Water and Acidified Calcium Chloride
- Title
- Consecutive Recovery of Non-Structural Sugars and Xylooligomers from Corn Stover using Hot Water and Acidified Calcium Chloride
- Author
- KIM TAE HYUN
- Keywords
- Lignocellulosic biomass; Fractionation; Pretreatment; Percolation; Hemicellulose; Biorefinery
- Issue Date
- 2018-00
- Publisher
- NORTH CAROLINA STATE UNIV DEPT WOOD & PAPER SCI
- Citation
- BIORESOURCES, v. 13, NO. 4, Page. 7294-7309
- Abstract
- Corn stover, which has a high non-structural sugar content, was treated by two-stage fractionation using water and acidified CaCl2 for the consecutive recovery of non-structural sugars and xylooligomers. In this process, water treatment under mild conditions (60 degrees C to 140 degrees C) was used for the recovery of non-structural sugars in the first stage, followed by the recovery of xylooligomers using acidified CaCl2 in the second stage under severe conditions (160 degrees C to 180 degrees C). For the recovery of non-structural sugars, a water treatment at 80 degrees C was observed to be effective, recovering 95.6% of the non-structural sugars. With a non-structural sugar-free solid, the reaction conditions for the second stage of treatment using acidified CaCl2 were statistically optimized. The highest recovery yield of xylooligomers (72.5%) was obtained under optimum conditions (172.9 degrees C, 22.2 min, 4.7% CaCl2). With the two-stage fractionation process, the glucan digestibility of treated solid was enhanced from 34.0% for untreated corn stover to 91.0% for the treated solid (with 15 FPU/g-glucan).
- URI
- https://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/13946https://repository.hanyang.ac.kr/handle/20.500.11754/178691
- ISSN
- 1930-2126
- DOI
- 10.15376/biores.13.4.7294-7309
- Appears in Collections:
- COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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