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Screening of Highly Efficient Fungi for the Degradation of Lignocelluloses by Ionic Liquids-assisted Cellulase

文献类型： 外文期刊

作者： Hu, Xiao-Mei 1 ; Dong, Shi-Jia 1 ; Han, Hui-Ying 3 ; Gao, Yun-Fei 4 ; Zhang, Bi-Xian 4 ;

作者机构： 1.Harbin Univ, Harbin 150086, Peoples R China

2.Heilongjiang Prov Key Lab Cold Reg Wetland Ecol &, Harbin, Peoples R China

3.Northeast Agr Univ, Harbin 150030, Peoples R China

4.Heilongjiang Acad Agr Sci, Harbin 150086, Peoples R China

关键词： Lignocelluloses; Ionic liquids; Fungi; Cellulase; Degradation

期刊名称：BIORESOURCES （ 影响因子：1.747； 五年影响因子：2.005 ）

ISSN： 1930-2126

年卷期： 2022 年 17 卷 1 期

页码：

收录情况： SCI

摘要： A successful conversion of lignocellulosic biomass into biofuel could be achieved through an ionic liquids (ILs)-pretreatment and an enzyme saccharification. In this study, the fungal strains with high cellulase productions were isolated and identified as Penicillium janthinellum FHH1 and P. oxalicum FLY4. A high cellulase production was obtained at pH 4.0 and 30 degrees C for P. janthinellum FHH1 with corn stalk and beef extract for 9 days and for P. janthinellum FHH1 with corn stalk and peptone for 7 days. A pH range between 4.0 to 6.0 and a temperature range from 55 degrees C to 60 degrees C were applicable for cellulase with high activities during hydrolysis. A high NaCl-stability and a relatively high ILs-stability were found for cellulase obtained from P. oxalicum FLY4. High yields of reducing sugar were obtained by enzymatic hydrolysis of the original corn stalk and ILspretreated corn stalk. P. oxalicum FLY4 has a great potential for ILsassisted fungi in the degradation of lignocellulosic biomass into valueadded products.

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