Article (Scientific journals)
Bioethanol potential of raw and hydrothermally pretreated banana bulbs biomass in simultaneous saccharification and fermentation process with Saccharomyces cerevisiae
Awedem Wobiwo, F.; Chaturvedi, T.; Boda, M. et al.
2019In Biomass Conversion and Biorefinery, 9 (3), p. 553-563
Peer reviewed
 

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Keywords :
Banana bulbs; Bioethanol; Biorefinery; Fermentation; Hydrothermal pretreatment; Cellulose; Feedstocks; Fruits; Saccharification; Starch; Yeast; Alternative feedstocks; Biorefineries; Enzymatic digestibility; Fermentable carbohydrate; Simultaneous saccharification and fermentation; Transportation requirements; Ethanol
Abstract :
[en] Residual banana bulbs (RBB) were characterized and assessed as a potential starch and cellulose-based feedstock for bioethanol production. To facilitate the enzymatic digestibility, hydrothermal pretreatment was performed on RBB prior to simultaneous saccharification and fermentation (SSF) with Saccharomyces cerevisiae. Composition of RBB was similar to traditional starch and cellulose-based feedstocks with high glucan (60 g/100 gDM) and relatively low lignin content (7 g/100 gDM). Both amylase and cellulase were needed to efficiently hydrolyze RBB. The highest ethanol yield (310 kg EtOH/ton_DM_RBB, 93% of theoretical production based on total available glucose) was obtained with non-pretreated RBB. SSF can be carried out at lower RBB concentrations. Hydrothermal pretreatment affected negatively the bioethanol potential due to the loss of fermentable carbohydrates. In a case study of an African leading producer of bananas and plantains (Cameroon), the energy derived from bioethanol was 80 GWh ethanol/year and corresponded to 1.6% of the annual transportation requirement. This study shows that RBB is a promising alternative feedstock for bioethanol production. © 2018, The Author(s).
Disciplines :
Biotechnology
Author, co-author :
Awedem Wobiwo, F.;  Laboratory of Bioengineering, Université Catholique de Louvain, Earth and Life Institute, Croix du Sud, 2-L7.05.19, Louvain-la-Neuve, 1348, Belgium, Department of Energy Technology, Aalborg University, Niels Bohrs vej 8, Esbjerg, 6700, Denmark
Chaturvedi, T.;  Department of Energy Technology, Aalborg University, Niels Bohrs vej 8, Esbjerg, 6700, Denmark
Boda, M.;  Laboratory of Microbiology, Department of Microbiology, University of Yaoundé I, P. O. Box 812, Yaoundé, Cameroon
Fokou, E.;  Laboratory for Food Science and Metabolism, Department of Biochemistry, University of Yaoundé I, P. O. Box 812, Yaoundé, Cameroon
Emaga, T. H.;  Post harvest Technology Laboratory, African Research Centre on Bananas and Plantains (CARBAP), Njombé, P. O. Box 832, Douala, Cameroon
Cybulska, I.;  Laboratory of Bioengineering, Université Catholique de Louvain, Earth and Life Institute, Croix du Sud, 2-L7.05.19, Louvain-la-Neuve, 1348, Belgium
Deleu, Magali  ;  Université de Liège - ULiège > Département GxABT > Chimie des agro-biosystèmes
Gerin, P. A.;  Laboratory of Bioengineering, Université Catholique de Louvain, Earth and Life Institute, Croix du Sud, 2-L7.05.19, Louvain-la-Neuve, 1348, Belgium
Thomsen, M. H.;  Department of Energy Technology, Aalborg University, Niels Bohrs vej 8, Esbjerg, 6700, Denmark
Language :
English
Title :
Bioethanol potential of raw and hydrothermally pretreated banana bulbs biomass in simultaneous saccharification and fermentation process with Saccharomyces cerevisiae
Publication date :
2019
Journal title :
Biomass Conversion and Biorefinery
ISSN :
2190-6815
eISSN :
2190-6823
Publisher :
Springer Verlag
Volume :
9
Issue :
3
Pages :
553-563
Peer reviewed :
Peer reviewed
Funders :
WBI - Wallonie-Bruxelles International [BE]
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since 08 January 2021

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