The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
Alkali‐based AFEX pretreatment for the conversion of sugarcane bagasse and cane leaf residues to ethanol
Abstract
Sugarcane is one of the major agricultural crops cultivated in tropical climate regions of the world. Each tonne of raw cane production is associated with the generation of 130 kg dry weight of bagasse after juice extraction and 250 kg dry weight of cane leaf residue postharvest. The annual world production of sugarcane is ∼1.6 billion tones, generating 279 MMT tones of biomass residues (bagasse and cane leaf matter) that would be available for cellulosic ethanol production. Here, we investigated the production of cellulosic ethanol from sugar cane bagasse and sugar cane leaf residue using an alkaline pretreatment: ammonia fiber expansion (AFEX). The AFEX pretreatment improved the accessibility of cellulose and hemicelluloses to enzymes during hydrolysis by breaking down the ester linkages and other lignin carbohydrate complex (LCC) bonds and the sugar produced by this process is found to be highly fermentable. The maximum glucan conversion of AFEX pretreated bagasse and cane leaf residue by cellulases was ∼85%. Supplementation with hemicellulases during enzymatic hydrolysis improved the xylan conversion up to 95–98%. Xylanase supplementation also contributed to a marginal improvement in the glucan conversion. AFEX‐treated cane leaf residue was found to have a greater enzymatic digestibility compared to AFEX‐treated bagasse. Co‐fermentation of glucose and xylose, produced from high solid loading (6% glucan) hydrolysis of AFEX‐treated bagasse and cane leaf residue, using the recombinant Saccharomyces cerevisiae (424A LNH‐ST) produced 34–36 g/L of ethanol with 92% theoretical yield. These results demonstrate that AFEX pretreatment is a viable process for conversion of bagasse and cane leaf residue into cellulosic ethanol. Biotechnol. Bioeng. 2010;107: 441–450. © 2010 Wiley Periodicals, Inc.
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Citations
Cites
Features of promising technologies for pretreatment of lignocellulosic biomass
MOSIER, N. (2005) · Bioresource Technology · doi:10.1016/j.biortech.2004.06.025 · Cited by 6,251
Ethanol production from biomass: technology and commercialization status
Mielenz, J. R. (2001) · Current Opinion in Microbiology · doi:10.1016/s1369-5274(00)00211-3 · Cited by 440
Enhanced enzymatic hydrolysis of sugarcane bagasse by N-methylmorpholine-N-oxide pretreatment
Kuo, C.-H., & Lee, C.-K. (2009) · Bioresource Technology · doi:10.1016/j.biortech.2008.07.001 · Cited by 156
Cited by
Rezende, C. A., de Lima, M. A., Maziero, P., deAzevedo, E. R., Garcia, W., & Polikarpov, I. (2011) · Biotechnology for Biofuels · doi:10.1186/1754-6834-4-54 · Cited by 593
Singh, J., Suhag, M., & Dhaka, A. (2015) · Carbohydrate Polymers · doi:10.1016/j.carbpol.2014.10.012 · Cited by 462
Room temperature ionic liquids as emerging solvents for the pretreatment of lignocellulosic biomass
Mora‐Pale, M., Meli, L., Doherty, T. V., Linhardt, R. J., & Dordick, J. S. (2011) · Biotechnology and Bioengineering · doi:10.1002/bit.23108 · Cited by 384
Ayodele, B. V., Alsaffar, M. A., & Mustapa, S. I. (2020) · Journal of Cleaner Production · doi:10.1016/j.jclepro.2019.118857 · Cited by 250
Sustainable valorization of sugar industry waste: status, opportunities, and challenges
Meghana, M., & Shastri, Y. (2020) · Bioresource Technology · doi:10.1016/j.biortech.2020.122929 · Cited by 201
Metadata
- Authors
- Krishnan, C., Sousa, L. D. C., Jin, M., Chang, L., Dale, B. E., & Balan, V.
- Venue
- Biotechnology and Bioengineering
- Publisher
- Wiley
- Published
- 2010-08-20
- Volume
- 107
- Issue
- 3
- Pages
- 441-450
- ISSN
- 0006-3592 (ISSN-L)
- 1097-0290
- OpenAlex
- W2154833471
- Cited by
- 202
- References
- 3
- FWCI
- 8.01
- Type
- journal article
- Language
- en
- Open access
- closed
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