Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues: Using Steam Explosion or AFEX™ to Produce Animal Feeds and Biofuel Feedstocks in a Biorefinery Based on Sugarcane Residues
Abstract
Abstract Sustainable integration of biofuel (primarily bioethanol) and highly digestible livestock feed in production systems is a potential way to increase the economic returns to agriculture and simultaneously promote energy security, particularly in developing countries. In this work we evaluated the efficacy of steam explosion (StEx) and ammonia fiber expansion (AFEX™) as potential processes for improving the in vitro rumen digestibility, metabolizable energy, and ethanol yields from sugarcane crop residues (bagasse and cane leaf matter, CLM). Ammonia fiber expansion pretreatment enhanced the in vitro true digestibility and metabolizable energy content of sugarcane crop residues by 69% and 26%, respectively compared to untreated controls. On the other hand, StEx increased the true digestibility and metabolizable energy content of the sugarcane residues by 54% and 7%, respectively. Ammonia fiber expansion also increased the total nitrogen content of both sugarcane bagasse and CLM to more than 20.2 g kg −1 dry forage, a more than 230% improvement relative to untreated controls. High solid‐loading enzymatic hydrolysis and fermentation of StEx‐ and AFEX™‐pretreated sugarcane crop residues generated yields of up to 3368 and 4360 L of ethanol per hectare of sugarcane cultivated, respectively, at a biomass‐degrading enzyme dosage of 20 mg protein per gram glucan. This research strongly suggestsmore »
- Authors:
-
- Stellenbosch University (South Africa); Michigan State Univ., East Lansing, MI (United States)
- Michigan State Univ., East Lansing, MI (United States)
- Michigan Biotechnology Institute, Lansing, MI (United States)
- Michigan Biotechnology Institute, Lansing, MI, USA; Univ. of Texas, Houston, TX (United States)
- Stellenbosch University (South Africa)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1609224
- Alternate Identifier(s):
- OSTI ID: 1467741
- Grant/Contract Number:
- FC02-07ER64494; DE‐FC02‐07ER64494
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Biofuels, Bioproducts & Biorefining
- Additional Journal Information:
- Journal Volume: 12; Journal Issue: 6; Journal ID: ISSN 1932-104X
- Publisher:
- Wiley
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 09 BIOMASS FUELS; Biotechnology & Applied Microbiology; Energy & Fuels
Citation Formats
Mokomele, Thapelo, da Costa Sousa, Leonardo, Bals, Bryan, Balan, Venkatesh, Goosen, Neill, Dale, Bruce E., and Görgens, Johann F. Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues: Using Steam Explosion or AFEX™ to Produce Animal Feeds and Biofuel Feedstocks in a Biorefinery Based on Sugarcane Residues. United States: N. p., 2018.
Web. doi:10.1002/bbb.1927.
Mokomele, Thapelo, da Costa Sousa, Leonardo, Bals, Bryan, Balan, Venkatesh, Goosen, Neill, Dale, Bruce E., & Görgens, Johann F. Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues: Using Steam Explosion or AFEX™ to Produce Animal Feeds and Biofuel Feedstocks in a Biorefinery Based on Sugarcane Residues. United States. https://doi.org/10.1002/bbb.1927
Mokomele, Thapelo, da Costa Sousa, Leonardo, Bals, Bryan, Balan, Venkatesh, Goosen, Neill, Dale, Bruce E., and Görgens, Johann F. 2018.
"Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues: Using Steam Explosion or AFEX™ to Produce Animal Feeds and Biofuel Feedstocks in a Biorefinery Based on Sugarcane Residues". United States. https://doi.org/10.1002/bbb.1927. https://www.osti.gov/servlets/purl/1609224.
@article{osti_1609224,
title = {Using steam explosion or AFEX™ to produce animal feeds and biofuel feedstocks in a biorefinery based on sugarcane residues: Using Steam Explosion or AFEX™ to Produce Animal Feeds and Biofuel Feedstocks in a Biorefinery Based on Sugarcane Residues},
author = {Mokomele, Thapelo and da Costa Sousa, Leonardo and Bals, Bryan and Balan, Venkatesh and Goosen, Neill and Dale, Bruce E. and Görgens, Johann F.},
abstractNote = {Abstract Sustainable integration of biofuel (primarily bioethanol) and highly digestible livestock feed in production systems is a potential way to increase the economic returns to agriculture and simultaneously promote energy security, particularly in developing countries. In this work we evaluated the efficacy of steam explosion (StEx) and ammonia fiber expansion (AFEX™) as potential processes for improving the in vitro rumen digestibility, metabolizable energy, and ethanol yields from sugarcane crop residues (bagasse and cane leaf matter, CLM). Ammonia fiber expansion pretreatment enhanced the in vitro true digestibility and metabolizable energy content of sugarcane crop residues by 69% and 26%, respectively compared to untreated controls. On the other hand, StEx increased the true digestibility and metabolizable energy content of the sugarcane residues by 54% and 7%, respectively. Ammonia fiber expansion also increased the total nitrogen content of both sugarcane bagasse and CLM to more than 20.2 g kg −1 dry forage, a more than 230% improvement relative to untreated controls. High solid‐loading enzymatic hydrolysis and fermentation of StEx‐ and AFEX™‐pretreated sugarcane crop residues generated yields of up to 3368 and 4360 L of ethanol per hectare of sugarcane cultivated, respectively, at a biomass‐degrading enzyme dosage of 20 mg protein per gram glucan. This research strongly suggests that the use of suitably pretreated sugarcane crop residues in integrated sugarcane biofuel‐livestock production systems can increase the total per hectare agricultural output without increasing the area of sugarcane cultivated. In effect, this integrated approach promotes more sustainable biofuel production and increased food production while avoiding the potential for indirect land use change. © 2018 Society of Chemical Industry and John Wiley & Sons, Ltd},
doi = {10.1002/bbb.1927},
url = {https://www.osti.gov/biblio/1609224},
journal = {Biofuels, Bioproducts & Biorefining},
issn = {1932-104X},
number = 6,
volume = 12,
place = {United States},
year = {Tue Aug 28 00:00:00 EDT 2018},
month = {Tue Aug 28 00:00:00 EDT 2018}
}
Web of Science
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