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Improved Ethanol Production Based on High Solids Fed-Batch Simultaneous Saccharification and Fermentation with Alkali-Pretreated Sugarcane Bagasse
Liu, Yunyun1,2; Xu, Jingliang1; Zhang, Yu1; He, Minchao1; Liang, Cuiyi1; Yuan, Zhenhong1; Xie, Jun2
2016
Source PublicationBIORESOURCES
Volume11Issue:1Pages:2548-2556
AbstractAlkali-pretreated sugarcane bagasse fiber was subjected to fed-batch simultaneous saccharification and fermentation (SSF) with a pre-hydrolysis process to increase the solids loading and produce a high concentration of ethanol. The hydrolysis medium and yeast feeding modes were investigated to determine suitable conditions for high sugar yield and ethanol production. Batch addition resulted in a cumulative substrate concentration of up to 36% (w/v) and enhanced ethanol concentrations, while ethanol conversion efficiency gradually declined. Enzymatic pre-hydrolysis and fermentation with fed-batch mode contributed to the SSF process. The highest ethanol concentration was 66.915 g/L with the conversion efficiency of 72.89%, which was achieved at 30% (w/v) solids content after 96 h of fermentation. Hydrolyzed medium and yeast were added in batch mode at 24 h of enzymatic hydrolysis and fermentation, respectively. Thus, combining the fed-batch mode with pre-hydrolysis SSF produced a high yield of ethanol.
SubtypeArticle
KeywordSimultaneous Saccharification And Fermentation Pre-hydrolysis Fed-batch Process Bioethanol Sugarcane Bagasse
WOS HeadingsScience & Technology ; Technology
WOS Subject ExtendedMaterials Science
WOS KeywordCORN STOVER ; LIGNOCELLULOSE ; BIOETHANOL ; SSF ; HYDROLYSIS ; ACID
Indexed BySCI
Language英语
WOS SubjectMaterials Science, Paper & Wood
WOS IDWOS:000372321200052
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/11133
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.South China Agr Univ, Inst New Energy & New Mat, Guangzhou 510642, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Liu, Yunyun,Xu, Jingliang,Zhang, Yu,et al. Improved Ethanol Production Based on High Solids Fed-Batch Simultaneous Saccharification and Fermentation with Alkali-Pretreated Sugarcane Bagasse[J]. BIORESOURCES,2016,11(1):2548-2556.
APA Liu, Yunyun.,Xu, Jingliang.,Zhang, Yu.,He, Minchao.,Liang, Cuiyi.,...&Xie, Jun.(2016).Improved Ethanol Production Based on High Solids Fed-Batch Simultaneous Saccharification and Fermentation with Alkali-Pretreated Sugarcane Bagasse.BIORESOURCES,11(1),2548-2556.
MLA Liu, Yunyun,et al."Improved Ethanol Production Based on High Solids Fed-Batch Simultaneous Saccharification and Fermentation with Alkali-Pretreated Sugarcane Bagasse".BIORESOURCES 11.1(2016):2548-2556.
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