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Title: Recalcitrance Assessment of the Agro-industrial Residues from Five Agave Species: Ionic Liquid Pretreatment, Saccharification and Structural Characterization

Abstract

Agave has recently shown its potential as a bioenergy feedstock with promising features such as higher biomass productivity than leading bioenergy feedstock while at the same time being drought-resistant with low water requirements and high sugar to ethanol conversion using ionic liquid (IL) pretreatment. IL pretreatment was studied to develop the first direct side-by-side comparative recalcitrance assessment of the agro-industrial residues from five Agave species [Agave americana (AME), A. angustifolia (ANG), A. fourcroydes (FOU), A. salmiana (SAL), and A. tequilana (TEQ)] using compositional analysis, X-ray diffraction, and the lignin syringyl/guaiacyl subunit ratio (S/G) by pyrolysis molecular beam mass spectrometry (PyMBMS). Prominent calcium oxalate peaks were found only in unpretreated AME, SAL, and TEQ. The S/G ratios of all five unpretreated Agave species were between 1.27 and 1.57 while the IL-pretreated samples were from 1.39 to 1.72. The highest overall sugar production was obtained with IL-pretreated FOU with 492 mg glucose/g biomass and 157 mg xylose/g biomass at 120 degrees C and 3 h using 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]). An estimated theoretical ethanol yield from the studied agro-industrial residues from the five Agave species was in the range of 1060 to 5800 L ethanol/ha/year. These comparison results demonstrate the potential of themore » Agave spp. as a suitable biofuel feedstock which can be employed within a biorefinery scheme.« less

Authors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Contributing Org.:
Novozymes A/S, Copenhagen (Denmark); Bioagaves de la Costa, Tepic (Mexico); Destilería Leyros, Tequila (Mexico); Mezcal Koch, Oaxaca (Mexico); Hacienda Aké, Tixkokob (Mexico)
OSTI Identifier:
1454746
Report Number(s):
NREL/JA-2700-71742
Journal ID: ISSN 1939-1234
DOE Contract Number:  
AC05-00OR22725; AC36-08-GO28308
Resource Type:
Journal Article
Journal Name:
BioEnergy Research
Additional Journal Information:
Journal Volume: 11; Journal Issue: 3; Journal ID: ISSN 1939-1234
Publisher:
Springer
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; agave; biofuels; characterization; crystallinity; S/G; saccharification

Citation Formats

Pérez-Pimienta, José A., Mojica-Álvarez, Reyna M., Sánchez-Herrera, Leticia M., Mittal, Ashutosh, and Sykes, Robert W. Recalcitrance Assessment of the Agro-industrial Residues from Five Agave Species: Ionic Liquid Pretreatment, Saccharification and Structural Characterization. United States: N. p., 2018. Web. doi:10.1007/s12155-018-9920-5.
Pérez-Pimienta, José A., Mojica-Álvarez, Reyna M., Sánchez-Herrera, Leticia M., Mittal, Ashutosh, & Sykes, Robert W. Recalcitrance Assessment of the Agro-industrial Residues from Five Agave Species: Ionic Liquid Pretreatment, Saccharification and Structural Characterization. United States. doi:10.1007/s12155-018-9920-5.
Pérez-Pimienta, José A., Mojica-Álvarez, Reyna M., Sánchez-Herrera, Leticia M., Mittal, Ashutosh, and Sykes, Robert W. Tue . "Recalcitrance Assessment of the Agro-industrial Residues from Five Agave Species: Ionic Liquid Pretreatment, Saccharification and Structural Characterization". United States. doi:10.1007/s12155-018-9920-5.
@article{osti_1454746,
title = {Recalcitrance Assessment of the Agro-industrial Residues from Five Agave Species: Ionic Liquid Pretreatment, Saccharification and Structural Characterization},
author = {Pérez-Pimienta, José A. and Mojica-Álvarez, Reyna M. and Sánchez-Herrera, Leticia M. and Mittal, Ashutosh and Sykes, Robert W.},
abstractNote = {Agave has recently shown its potential as a bioenergy feedstock with promising features such as higher biomass productivity than leading bioenergy feedstock while at the same time being drought-resistant with low water requirements and high sugar to ethanol conversion using ionic liquid (IL) pretreatment. IL pretreatment was studied to develop the first direct side-by-side comparative recalcitrance assessment of the agro-industrial residues from five Agave species [Agave americana (AME), A. angustifolia (ANG), A. fourcroydes (FOU), A. salmiana (SAL), and A. tequilana (TEQ)] using compositional analysis, X-ray diffraction, and the lignin syringyl/guaiacyl subunit ratio (S/G) by pyrolysis molecular beam mass spectrometry (PyMBMS). Prominent calcium oxalate peaks were found only in unpretreated AME, SAL, and TEQ. The S/G ratios of all five unpretreated Agave species were between 1.27 and 1.57 while the IL-pretreated samples were from 1.39 to 1.72. The highest overall sugar production was obtained with IL-pretreated FOU with 492 mg glucose/g biomass and 157 mg xylose/g biomass at 120 degrees C and 3 h using 1-ethyl-3-methylimidazolium acetate ([C2C1Im][OAc]). An estimated theoretical ethanol yield from the studied agro-industrial residues from the five Agave species was in the range of 1060 to 5800 L ethanol/ha/year. These comparison results demonstrate the potential of the Agave spp. as a suitable biofuel feedstock which can be employed within a biorefinery scheme.},
doi = {10.1007/s12155-018-9920-5},
journal = {BioEnergy Research},
issn = {1939-1234},
number = 3,
volume = 11,
place = {United States},
year = {2018},
month = {5}
}