Efficient extraction method to collect sugar from sweet sorghum

Persistent Link:
http://hdl.handle.net/10150/610172
Title:
Efficient extraction method to collect sugar from sweet sorghum
Author:
Jia, Fei; Chawhuaymak, Jeerwan; Riley, Mark; Zimmt, Werner; Ogden, Kimberly
Affiliation:
Department of Agricultural and Biosystems Engineering, The University of Arizona, Tucson, AZ, 85721, USA; Department of Chemical and Environmental Engineering, The University of Arizona, Tucson, AZ, 85721, USA; Current address: Department of Biological Systems Engineering, University of Nebraska-Lincoln, 223 LW Chase Hall, Lincoln, NE, 68583-0726, USA
Issue Date:
2013
Publisher:
BioMed Central
Citation:
Jia et al. Journal of Biological Engineering 2013, 7:1 http://www.jbioleng.org/content/7/1/1
Journal:
Journal of Biological Engineering
Rights:
© 2013 Jia et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0)
Collection Information:
This item is part of the UA Faculty Publications collection. For more information this item or other items in the UA Campus Repository, contact the University of Arizona Libraries at repository@u.library.arizona.edu.
Abstract:
BACKGROUND:Sweet sorghum is a domesticated grass containing a sugar-rich juice that can be readily utilized for ethanol production. Most of the sugar is stored inside the cells of the stalk tissue and can be difficult to release, a necessary step before conventional fermentation. While this crop holds much promise as an arid land sugar source for biofuel production, a number of challenges must be overcome. One lies in the inherent labile nature of the sugars in the stalks leading to a short usable storage time. Also, collection of sugars from the sweet sorghum stalks is usually accomplished by mechanical squeezing, but generally does not collect all of the available sugars.RESULTS:In this paper, we present two methods that address these challenges for utilization of sweet sorghum for biofuel production. The first method demonstrates a means to store sweet sorghum stalks in the field under semi-arid conditions. The second provides an efficient water extraction method that can collect as much of the available sugar as feasible. Operating parameters investigated include temperature, stalk size, and solid-liquid ratio that impact both the rate of sugar release and the maximal amount recovered with a goal of low water use. The most desirable conditions include 30degreesC, 0.6 ratio of solid to liquid (w/w), which collects 90 % of the available sugar. Variations in extraction methods did not alter the efficiency of the eventual ethanol fermentation.CONCLUSIONS:The water extraction method has the potential to be used for sugar extraction from both fresh sweet sorghum stalks and dried ones. When combined with current sugar extraction methods, the overall ethanol production efficiency would increase compared to current field practices.
EISSN:
1754-1611
DOI:
10.1186/1754-1611-7-1
Keywords:
Sweet sorghum; Sugar extraction; Biomass storage; Ethanol fermentation
Version:
Final published version
Additional Links:
http://www.jbioleng.org/content/7/1/1

Full metadata record

DC FieldValue Language
dc.contributor.authorJia, Feien
dc.contributor.authorChawhuaymak, Jeerwanen
dc.contributor.authorRiley, Marken
dc.contributor.authorZimmt, Werneren
dc.contributor.authorOgden, Kimberlyen
dc.date.accessioned2016-05-20T09:00:16Z-
dc.date.available2016-05-20T09:00:16Z-
dc.date.issued2013en
dc.identifier.citationJia et al. Journal of Biological Engineering 2013, 7:1 http://www.jbioleng.org/content/7/1/1en
dc.identifier.doi10.1186/1754-1611-7-1en
dc.identifier.urihttp://hdl.handle.net/10150/610172-
dc.description.abstractBACKGROUND:Sweet sorghum is a domesticated grass containing a sugar-rich juice that can be readily utilized for ethanol production. Most of the sugar is stored inside the cells of the stalk tissue and can be difficult to release, a necessary step before conventional fermentation. While this crop holds much promise as an arid land sugar source for biofuel production, a number of challenges must be overcome. One lies in the inherent labile nature of the sugars in the stalks leading to a short usable storage time. Also, collection of sugars from the sweet sorghum stalks is usually accomplished by mechanical squeezing, but generally does not collect all of the available sugars.RESULTS:In this paper, we present two methods that address these challenges for utilization of sweet sorghum for biofuel production. The first method demonstrates a means to store sweet sorghum stalks in the field under semi-arid conditions. The second provides an efficient water extraction method that can collect as much of the available sugar as feasible. Operating parameters investigated include temperature, stalk size, and solid-liquid ratio that impact both the rate of sugar release and the maximal amount recovered with a goal of low water use. The most desirable conditions include 30degreesC, 0.6 ratio of solid to liquid (w/w), which collects 90 % of the available sugar. Variations in extraction methods did not alter the efficiency of the eventual ethanol fermentation.CONCLUSIONS:The water extraction method has the potential to be used for sugar extraction from both fresh sweet sorghum stalks and dried ones. When combined with current sugar extraction methods, the overall ethanol production efficiency would increase compared to current field practices.en
dc.language.isoenen
dc.publisherBioMed Centralen
dc.relation.urlhttp://www.jbioleng.org/content/7/1/1en
dc.rights© 2013 Jia et al.; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0)en
dc.subjectSweet sorghumen
dc.subjectSugar extractionen
dc.subjectBiomass storageen
dc.subjectEthanol fermentationen
dc.titleEfficient extraction method to collect sugar from sweet sorghumen
dc.typeArticleen
dc.identifier.eissn1754-1611en
dc.contributor.departmentDepartment of Agricultural and Biosystems Engineering, The University of Arizona, Tucson, AZ, 85721, USAen
dc.contributor.departmentDepartment of Chemical and Environmental Engineering, The University of Arizona, Tucson, AZ, 85721, USAen
dc.contributor.departmentCurrent address: Department of Biological Systems Engineering, University of Nebraska-Lincoln, 223 LW Chase Hall, Lincoln, NE, 68583-0726, USAen
dc.identifier.journalJournal of Biological Engineeringen
dc.description.collectioninformationThis item is part of the UA Faculty Publications collection. For more information this item or other items in the UA Campus Repository, contact the University of Arizona Libraries at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
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