新型真菌和细菌联合体促进稻草降解条件优化与降解特性

IF 4.1 2区 环境科学与生态学 Q2 BIOTECHNOLOGY & APPLIED MICROBIOLOGY
Liuzhou Chen, Tian Tang, Zheng Wang, Nan Zhao, Shu Wu, Yangsheng Liu
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引用次数: 0

摘要

农业的快速发展导致了大量农作物秸秆的产生,因此有必要制定有效的秸秆管理策略。微生物降解是一种很有前景的方法。本研究构建了一个新型微生物联合体,由具有强大木质纤维素降解能力的、、和组成,用于降解水稻秸秆。该微生物群的建立基于生长曲线和拮抗试验。正交优化结果表明,在降解水稻秸秆的过程中," "发挥了主导作用。确定的最佳降解条件为:氮源浓度为 2.5 gL,料液比为 40 gL,接种量为 3%,pH 值为 9。秸秆中木质纤维素成分的分解已通过各种表征方法得到证实。此外,随着降解过程的进行,降解液中的蛋白质类物质明显减少,腐殖酸类物质增加。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A novel fungal and bacterial consortium promotes the degradation of rice straw: Conditions optimization and degradation properties

The rapid development of agriculture has led to the production of a large amount of crop straw, necessitating effective strategies for its management. Microbial degradation offers a promising method. In this study, a novel microbial consortium composed of Phanerochaete chrysosporium, Aspergillus niger, and Streptomyces griseorubens, known for their robust lignocellulose degradation capabilities, was constructed for rice straw degradation. The establishment of this microbial consortium was based on the growth curve and antagonistic tests. Orthogonal optimization revealed that Streptomyces griseorubens played a predominant role in the degradation of rice straw. The optimal degradation conditions were determined as follows: nitrogen source concentration of 2.5 gL−1, material-liquid ratio of 40 g L−1, inoculum size of 3%, and pH value of 9. Under these conditions, the degradation efficiency reached 42% within 15 days. The decomposition of lignocellulosic components in the straw was confirmed through various characterization methods. Additionally, as the degradation process progressed, there was a noticeable decrease in protein-like substances and an increase in humic acid-like substances in the degradation solution.

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来源期刊
CiteScore
9.60
自引率
10.40%
发文量
107
审稿时长
21 days
期刊介绍: International Biodeterioration and Biodegradation publishes original research papers and reviews on the biological causes of deterioration or degradation.
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