木质素
半纤维素
纤维素
化学
发酵
微生物种群生物学
降级(电信)
稻草
微生物降解
微生物联合体
生化工程
制浆造纸工业
食品科学
生物技术
生物化学
微生物
生物
细菌
有机化学
计算机科学
无机化学
工程类
电信
遗传学
作者
Jinmeng Chen,Yafan Cai,Zhi Wang,Zhengzhong Xu,Jia Li,Xiaotian Ma,Wei Zhuang,Dong Liu,Shilei Wang,Andong Song,Jun Zhang,Hanjie Ying
标识
DOI:10.1016/j.biortech.2023.129799
摘要
The efficient degradation of lignocellulose is a bottleneck for its integrated utilization. This research performed species analysis and made functional predictions in various ecosystems using multiomics coupling to construct a core synthetic microbial community with efficient lignocellulose degradation function. The synthetic microbial community was employed to degrade corn straw via solid-state fermentation. The degradation mechanisms were resolved using proteomics. The optimum culture conditions included 10% inoculum level (w/v), 4% nitrogen source ratio and a fermentation time of 23 d. Under these conditions, the degradation rates of cellulose, hemicellulose, and lignin were 34.91%, 45.94%, and 23.34%, respectively. Proteomic analysis revealed that lignin 1,4-β-xylanase, β-xylosidase and endo-1,4-β-xylanase were closely related to lignocellulose degradation. The metabolic pathways involved in lignocellulose degradation and the functional roles of eight strains were obtained. The synthesis of a microbial community via multiomics linkage technology can effectively decompose lignocellulose, which is useful for their further utilization.
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