Cao, W. and Sun, C. and Liu, R. and Yin, R. and Wu, X. (2012) Comparison of the effects of five pretreatment methods on enhancing the enzymatic digestibility and ethanol production from sweet sorghum bagasse. Bioresource Technology. pp. 1-7.
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Abstract
To improve the enzymatic digestibility of sweet sorghum bagasse and bioethanol production, five pretreatment methods have been investigated and compared, including (1) dilute NaOH solution autoclaving pretreatment, (2) high concentration NaOH solution immersing pretreatment, (3) dilute NaOH solution autoclaving and H2O2 immersing pretreatment, (4) alkaline peroxide pretreatment and (5) autoclaving pretreatment. Among them, the best result was obtained when sweet sorghum bagasse was dilute NaOH solution autoclaving and H2O2 immersing pretreatment. The highest cellulose hydrolysis yield, total sugar yield and ethanol concentration were 74.29%, 90.94 g sugar/100 g dry matter and 6.12 g/L, respectively, which were 5.88, 9.54 and 19.13 times higher than the control. Moreover, the FTIR and SEM analysis illustrated significant molecule and surface structure changes of the sweet sorghum bagasse after pretreatments.
| Item Type: | Article |
|---|---|
| Additional Information: | The authors are grateful for the support provided by the Ministry of Agriculture of the People’s Republic of China under the 948 Project entitled “Introduce and industrialization of advanced agriculture biomass energy technologies” (Grant No. 2008 G2) and Liaoning Natural Science Foundation (Grant No. 20092031). In addition, Yue Zhang from University of Southampton of UK is greatly acknowledged for her valuable suggestion and correction of the manuscript. |
| Uncontrolled Keywords: | Sweet sorghum bagasse; Enzymatic hydrolysis; Pretreatment; Bio-ethanol |
| Author Affiliation: | Biomass Energy Engineering Research Centre, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, People’s Republic of China |
| Subjects: | Plant Production Statistics and Experimentation > Experimentation |
| Divisions: | Sorghum |
| Depositing User: | Mr. SanatKumar Behera |
| Date Deposited: | 18 Mar 2012 05:45 |
| Last Modified: | 18 Mar 2012 05:45 |
| Official URL: | http://dx.doi.org/10.1016/j.biortech.2012.02.034 |
| URI: | http://eprints.icrisat.ac.in/id/eprint/3936 |
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