Characterization and evaluation of a natural derived bacterial consortium for efficient lignocellulosic biomass valorization

文献类型： 外文期刊

第一作者： Du, Ran

作者： Du, Ran;Li, Chong;Pan, Peipei;Yan, Jianbin;Pan, Peipei;Lin, Carol Sze Ki

作者机构：

关键词： Agricultural residues; Balanced consortium structure; Cellulosic ethanol; Consolidated bioprocessing; Molecular mechanisms

期刊名称：BIORESOURCE TECHNOLOGY （ 影响因子：7.539； 五年影响因子：7.27 ）

ISSN： 0960-8524

年卷期： 2021 年 329 卷

页码：

收录情况： SCI

摘要： A consortium (HPP) with improved ability in biomass conversion was achieved by adjusting the proportion of Pseudoxanthomonas taiwanensis in a natural consortium (HP), but the mechanism behind was unknown. Herein, the diversities of microbial community structure and gene functions of the consortia were analyzed first, and found that HPP had a more balanced microbial structure with enriched gene pathways related to cellular processes, environmental information processing and metabolism. Then, key genes responsible for biomass conversion were further analyzed, finding that their abundance and distribution contributed to HPP's efficient biomass conversion. Finally, consolidated bioprocessing of agricultural wastes by HPP was carried out to verify its enhanced ability, and ethanol with the highest yield that was ever reported was achieved at 0.28 g/g. This is the first study which reported the underlying mechanisms for synergistic effects of microbial consortia, and will guide the artificial construction of complex microbial consortium for specific purpose.

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