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Effect of Novel Pretreatment of Steam Explosion Associated with Ammonium Sulfite Process on Enzymatic Hydrolysis of Corn Straw
Zhao, Qihong1,2; Wang, Lan1; Chen, Hongzhang1
2019-10-01
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
ISSN0273-2289
Volume189Issue:2Pages:485-497
AbstractEffective pretreatment process to improve enzymatic saccharification and decrease inhibitors generation is a key operation involved in the lignocellulosic bioconversion. The pretreatment of steam explosion associated with ammonium sulfite (SEAS) process was carried out to investigate the effect on enzymatic hydrolysis and fermentation production as a combinatorial pretreatment. Results showed that after pretreatment (1.0 MPa, 30 min, 20%w/w ammonium sulfite added), the phenolic inhibitors derived from lignin significantly removed (37.8%), which transformed to chemical humic acid (humic acid and fulvic acid) mostly. Sugar conversion (glucan (77.8%) and xylan (73.3%)) and ethanol concentration (40.8 g/L) of combinatorial pretreated samples were increased by 24.7% and 33.8%, respectively, compared with steam explosion (SE) pretreated samples. FT-IR and elemental analysis results indicated that the lignin structure changed and aromatization degree increased after SEAS pretreatment. In addition, the ratio of C/N decreased and compost maturity degree increased with the holding time. The effect on the growth of wheat seedlings of soluble fulvic acid solution from combinatorial pretreatment was investigated, where below 1% (w/w) concentration did contribute to growth. Therefore, one-step chemical pretreatment process could be provided for inhibitors removal, enzymatic saccharification increase, and chemical humic acid formation as well.
KeywordSteam explosion Ammonium sulfite Inhibitors removal Enzymatic hydrolysis Chemical humic acid
DOI10.1007/s12010-019-03018-w
Language英语
WOS KeywordPSEUDO-LIGNIN FORMATION ; STRUCTURAL-CHARACTERIZATION ; LIGNOCELLULOSIC BIOMASS ; WHEAT-STRAW ; SACCHARIFICATION ; ACID ; DETOXIFICATION ; FERMENTATION ; PRODUCTS ; SIZE
Funding ProjectTransformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences)[XDA 21060300] ; National Key Research and Development Program of China[2018YFB1501702]
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
Funding OrganizationTransformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences) ; National Key Research and Development Program of China
WOS IDWOS:000487133300012
PublisherSPRINGER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/30928
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Lan
Affiliation1.Chinese Acad Sci, Beijing Key Lab Biomass Refining Engn, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Qihong,Wang, Lan,Chen, Hongzhang. Effect of Novel Pretreatment of Steam Explosion Associated with Ammonium Sulfite Process on Enzymatic Hydrolysis of Corn Straw[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2019,189(2):485-497.
APA Zhao, Qihong,Wang, Lan,&Chen, Hongzhang.(2019).Effect of Novel Pretreatment of Steam Explosion Associated with Ammonium Sulfite Process on Enzymatic Hydrolysis of Corn Straw.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,189(2),485-497.
MLA Zhao, Qihong,et al."Effect of Novel Pretreatment of Steam Explosion Associated with Ammonium Sulfite Process on Enzymatic Hydrolysis of Corn Straw".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 189.2(2019):485-497.
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