An insight - A statistical investigation of consolidated bioprocessing of Allium ascalonicum leaves to ethanol using Hangateiclostridium thermocellum KSMK1203 and synthetic consortium

S. Kavitha, T. Gajendran, K. Saranya, P. Selvakumar, V. Manivasagan and S. Jeevitha

Renewable Energy, 2022, vol. 187, issue C, 403-416

Abstract: Bioethanol can be produced by cellulolytic and ethanogenic bacterial species could efficiently degrade lignocelluloses and have potential for biofuels production through consolidated bioprocessing (CBP). In this study, on-site cellulase production followed by saccharification and fermentation of pre-treated Allium ascalonicum leaves to bioethanol in a single reactor using Hangateiclostridium thermocellum KSMK1203 and consortium of Cellulomonas fimi MTCC 24 and Zymomonas mobilis MTCC 92. A. ascalonicum leaf pre-treatment with different alkalis and different pre-treatment conditions such as alkali dosage and time for proficient removal of hemicellulose and cellulose recovery was optimized using RSM method with the maximum hemicellulose removal of 85.25%. The essential medium components were screened through PBD and further optimized using RSM method for H. thermocellum KSMK1203 and the consortium for maximized bioethanol yield. Hence, this study proposed that wild-type H. thermocellum KSMK1203 strain and consortium could be used for cellulase secretion and simultaneous bioethanol conversion.

Keywords: Lignocellulose; Bioethanol; Optimization; Response surface methodology; Consolidated bioprocessing (search for similar items in EconPapers)
Date: 2022
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:187:y:2022:i:c:p:403-416

DOI: 10.1016/j.renene.2022.01.047

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