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Title: Conversion of lignocellulosic agave residues into liquid biofuels using an AFEX™-based biorefinery

Journal Article · · Biotechnology for Biofuels

Agave-based alcoholic beverage companies generate thousands of tons of solid residues per year in Mexico. These agave residues might be used for biofuel production due to their abundance and favorable sustainability characteristics. In this work, agave leaf and bagasse residues from species Agave tequilana and Agave salmiana were subjected to pretreatment using the ammonia fiber expansion (AFEX) process. The pretreatment conditions were optimized using a response surface design methodology. We also identified commercial enzyme mixtures that maximize sugar yields for AFEX-pretreated agave bagasse and leaf matter, at ~ 6% glucan (w/w) loading enzymatic hydrolysis. Finally, the pretreated agave hydrolysates (at a total solids loading of ~ 20%) were used for ethanol fermentation using the glucose- and xylose-consuming strain Saccharomyces cerevisiae 424A (LNH-ST), to determine ethanol yields at industrially relevant conditions.

Research Organization:
Univ. of Wisconsin, Madison, WI (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
FC02-07ER64494
OSTI ID:
1618714
Alternate ID(s):
OSTI ID: 1504761
Journal Information:
Biotechnology for Biofuels, Journal Name: Biotechnology for Biofuels Vol. 11 Journal Issue: 1; ISSN 1754-6834
Publisher:
Springer Science + Business MediaCopyright Statement
Country of Publication:
Netherlands
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (2)

Use of Euphorbia sp. (Euphorbiaceae) as biofuel feedstock for semi-arid and arid lands journal December 2018
The Role of Sustainability Analysis in the Revalorization of Tequila Residues and Wastes Using Biorefineries journal July 2019