NDLI: Comparison of dilute acid and ionic liquid pretreatment of switchgrass: Biomass recalcitrance, delignification and enzymatic saccharification.

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Comparison of dilute acid and ionic liquid pretreatment of switchgrass: Biomass recalcitrance, delignification and enzymatic saccharification.

Content Provider	Semantic Scholar
Author	Li, Chenlin Knierim, Bernhard Manisseri, Chithra Arora, Rohit Scheller, Henrik Vibe Auer, Manfred Vogel, Kenneth P. Simmons, Blake Alex Singh, Seema
Copyright Year	2010
Abstract	The efficiency of two biomass pretreatment technologies, dilute acid hydrolysis and dissolution in an ionic liquid, are compared in terms of delignification, saccharification efficiency and saccharide yields with switchgrass serving as a model bioenergy crop. When subject to ionic liquid pretreatment (dissolution and precipitation of cellulose by anti-solvent) switchgrass exhibited reduced cellulose crystallinity, increased surface area, and decreased lignin content compared to dilute acid pretreatment. Pretreated material was characterized by powder X-ray diffraction, scanning electron microscopy, Fourier transform infrared spectroscopy, Raman spectroscopy and chemistry methods. Ionic liquid pretreatment enabled a significant enhancement in the rate of enzyme hydrolysis of the cellulose component of switchgrass, with a rate increase of 16.7-fold, and a glucan yield of 96.0% obtained in 24h. These results indicate that ionic liquid pretreatment may offer unique advantages when compared to the dilute acid pretreatment process for switchgrass. However, the cost of the ionic liquid process must also be taken into consideration.
File Format	PDF HTM / HTML
DOI	10.1016/j.biortech.2009.10.066
PubMed reference number	19945861
Journal	Medline
Volume Number	101
Issue Number	13
Alternate Webpage(s)	https://naldc.nal.usda.gov/download/45259/PDF
Alternate Webpage(s)	http://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=2959&context=usdaarsfacpub
Journal	Bioresource technology
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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