Materials | |
Cellulose Isolation Methodology for NMR Analysis of Cellulose Ultrastructure | |
Marcus B. Foston1  Chistopher A. Hubbell1  | |
[1] School of Chemistry and Biochemistry, Institute of Paper Science and Technology, Georgia Institute of Technology, 500 10th St., Atlanta, GA 30332, USA; | |
关键词: acid hydrolysis; cellulose; crystallinity; isolation method; solid-state NMR; 13C CP/MAS; | |
DOI : 10.3390/ma4111985 | |
来源: mdpi | |
【 摘 要 】
In order to obtain accurate information about the ultrastructure of cellulose from native biomass by 13C cross polarization magic angle spinning (CP/MAS) NMR spectroscopy the cellulose component must be isolated due to overlapping resonances from both lignin and hemicellulose. Typically, cellulose isolation has been achieved via holocellulose pulping to remove lignin followed by an acid hydrolysis procedure to remove the hemicellulose components. Using 13C CP/MAS NMR and non-linear line-fitting of the cellulose C4 region, it was observed that the standard acid hydrolysis procedure caused an apparent increase in crystallinity of ~10% or less on the cellulose isolated from
【 授权许可】
CC BY
© 2011 by the authors; licensee MDPI, Basel, Switzerland.
【 预 览 】
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