Enhanced Enzymatic Hydrolysis of Corncob by Synthesized Enzyme-Mimetic Magnetic Solid Acid Pretreatment in an Aqueous Phase

Autor:	Jinke Hu, Wei Yang, Zhiqiang Qi, Guifeng Liu, Wei Qi, Qiong Wang, Xu Qing, Si Lu, Cuiyi Liang
Rok vydání:	2019
Předmět:	inorganic chemicals chemistry.chemical_classification General Chemical Engineering Aqueous two-phase system Pentose General Chemistry Corncob Article Catalysis Chemistry Residue (chemistry) Hydrolysis chemistry.chemical_compound chemistry Enzymatic hydrolysis Hemicellulose QD1-999 Nuclear chemistry
Zdroj:	ACS Omega, Vol 4, Iss 18, Pp 17864-17873 (2019) ACS Omega
ISSN:	2470-1343
DOI:	10.1021/acsomega.9b02699
Popis:	A novel magnetic carbon-based solid acid catalyst (C350-Cl) was synthesized through a simple impregnation–carbonization process and used for the pretreatment of corncob in an aqueous medium. Under the optimized pretreatment reaction conditions, the yield of pentose reached 91.6% with a hemicellulose removal rate of 91.7%, and the subsequent enzymatic digestibility of the pretreated corncob residue reached 90.0% at 48 h. C350-Cl is a magnetic enzyme-mimetic solid acid catalyst, and its catalytic behavior is similar to those of enzymes. In addition, the catalyst is also an excellent carrier for Fe and Cl in that the Fe3+ and Cl–can be released slowly in the pretreatment to assist the hydrolysis of lignocellulose. Compared with the traditional method with other catalysts, this hydrolysis process is suitable for the effective and sustainable saccharification of lignocellulose for producing fermentable sugar.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::934e08259575b4e8cde0f96adccee99f https://doi.org/10.1021/acsomega.9b02699 Zobrazit plný text záznamu