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The synergism of hot water pretreatment and enzymatic hydrolysis in depolymerization of lignocellulosic content of palm kernel cake
Mi, Shuofu1; Li, Hongqiang1; Li, Shuying1,2; Han, Yejun1,3
2016-12-01
Source PublicationJOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC
ISSN1381-1177
Volume134Issue:DECPages:37-42
Abstract

Palm kernel cake (PKC), mainly composed of mannan, lignin and protein, is abundant renewable resource with commercial value. To develop clean and efficient way for PKC refinery, the method based on the synergism of hot water pretreatment (HWP), steam pretreatment (SP) and enzymatic hydrolysis were developed. HWP of 180 degrees C, 20 min and SP of 121 degrees C, 20min showed similar performance for sugar release from PKC. The main saccharides produced from PKC by HWP and SP were mannose and manno-oligosaccharides, while no furfural formed. The surface structure analyzed by SEM showed that HWP enhanced the microporosity of PKC, and the accessibility of which was increased thereafter. When HWP pretreated PKC was further hydrolyzed with enzyme cocktail (cellulase, xylanase, endo-mannanase), 45% of PKC was solubilized compared with the control. The manno-oligosaccharides produced by HWP and SP were converted to mannose and mannobiose by endo-mannanase. The results suggested that both HWP and SP promote enzymatic hydrolysis of PKC by releasing oligosaccharides and enhancing microporosity, and the synergism of which was effective for PKC decomposition. (C) 2016 Elsevier B.V. All rights reserved.

KeywordPalm Kernel Cake Hot Water Pretreatment Endo-mannanase Microporosity
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1016/j.molcatb.2016.09.004
Indexed BySCI
Language英语
WOS KeywordBUTANOL-ETHANOL FERMENTATION ; BED BIOREACTOR
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS SubjectBiochemistry & Molecular Biology ; Chemistry, Physical
Funding OrganizationNational High Technology Research and Development Program of China (863)(2014AA021905) ; 100 Talents Program of institute of process engineering ; Chinese Academy of Sciences ; State Key Laboratory of Motor Vehicle Biofuel Technology(KFKT2014007)
WOS IDWOS:000391074600006
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/21870
Collection生化工程国家重点实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Jilin Agr Univ, Changchun 130118, Peoples R China
3.State Key Lab Motor Vehicle Biofuel Technol, Nanyang 473000, Peoples R China
Recommended Citation
GB/T 7714
Mi, Shuofu,Li, Hongqiang,Li, Shuying,et al. The synergism of hot water pretreatment and enzymatic hydrolysis in depolymerization of lignocellulosic content of palm kernel cake[J]. JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC,2016,134(DEC):37-42.
APA Mi, Shuofu,Li, Hongqiang,Li, Shuying,&Han, Yejun.(2016).The synergism of hot water pretreatment and enzymatic hydrolysis in depolymerization of lignocellulosic content of palm kernel cake.JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC,134(DEC),37-42.
MLA Mi, Shuofu,et al."The synergism of hot water pretreatment and enzymatic hydrolysis in depolymerization of lignocellulosic content of palm kernel cake".JOURNAL OF MOLECULAR CATALYSIS B-ENZYMATIC 134.DEC(2016):37-42.
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