CAS OpenIR
Tissue fractionation of corn stover through steam explosion-assisted mechanical carding: Its effect on enzymatic hydrolysis and pulping
Khatun, MHA; Wang, L; Zhao, JY; Chen, HZ; Khatun, M. H. A.; Wang, Lan; Zhao, Junying; Chen, Hongzhang
2019
Source PublicationBIOMASS & BIOENERGY
ISSN0961-9534
Volume122Pages:109
AbstractThe complication of bioconversion starts from corn stover's structural inhomogeneity resulting in low enzymatic hydrolysis and pulping efficiency. Contrarily, higher efficacy necessitates the homogeneity of raw material, which demands a better understanding of tissue and cell modules. The proposal "Tissue Fractionation through Steam Explosion-Assisted Mechanical Carding (SEME)" can effectively fractionate corn stover into vascular and parenchyma tissues without adding chemical and water, resulting in low pollution. The result showed that the enzymatic hydrolysis yield of parenchyma tissue fraction (PTF) was 1.33 and 1.16 times higher than that of vascular tissue fraction (VTF) and the whole steam-exploded corn stover, respectively. It also revealed that each part of corn stover, namely, pith, rind, and leaf, showed higher enzymatic hydrolysis performance 1.09, 1.77, and 1.37 times, respectively, in the case of PTF than that of VTF. By characterizing with Brunauer-Emmett-Teller low-field nuclear magnetic resonance and analyzing with multiple-factor regression, it was found that the higher yield of enzymatic hydrolysis was attributed to the homogeneity improvement of interface properties instead of cellulose content. Furthermore, with the ethanol self-catalyzed pulping method, VTF was used to prepare unbleached pulp whose strength properties fulfilled the indexes of grade A corrugated medium, and the yield reached up to 57.6%, which is 1.26 times higher than that of cornstalk. This study provides a new method of tissue fractionation to improve the degree of usability of total corn stover for enzymatic hydrolysis and pulping considering the cost competitiveness in the economical stage.
KeywordCorn stover WHEAT-STRAW Steam explosion BIOMASS RECALCITRANCE Mechanical carding equipment PRETREATMENT Tissue fractionation OPTIMIZATION Enzymatic hydrolysis Non-woods pulping
SubtypeArticle
DOI10.1016/j.biombioe.2019.01.028
WOS IDWOS:000459461800012
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/28332
Collection中国科学院过程工程研究所
Recommended Citation
GB/T 7714
Khatun, MHA,Wang, L,Zhao, JY,et al. Tissue fractionation of corn stover through steam explosion-assisted mechanical carding: Its effect on enzymatic hydrolysis and pulping[J]. BIOMASS & BIOENERGY,2019,122:109, 116.
APA Khatun, MHA.,Wang, L.,Zhao, JY.,Chen, HZ.,Khatun, M. H. A..,...&Chen, Hongzhang.(2019).Tissue fractionation of corn stover through steam explosion-assisted mechanical carding: Its effect on enzymatic hydrolysis and pulping.BIOMASS & BIOENERGY,122,109.
MLA Khatun, MHA,et al."Tissue fractionation of corn stover through steam explosion-assisted mechanical carding: Its effect on enzymatic hydrolysis and pulping".BIOMASS & BIOENERGY 122(2019):109.
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