数字农科院2.0

Electron transfer and microbial mechanism of synergistic degradation of lignocellulose by hydrochar and aerobic fermentation

文献类型: 外文期刊

作者: Yu C.;Li M.;Huang H.;Yan J.;Zhang X.;Luo T.;Ye M.;Meng F.;Sun T.;Hou J.;Xi B.

作者机构:

关键词: Hydrochar production;Lignocellulose pretreatment;Microbial community;Walnut husk degradation

期刊名称: Bioresource Technology

ISSN: 0960-8524

年卷期: 2024 年 394 卷

页码:

收录情况: SCIE(2024版) ; ; EI(2024版)

摘要: In response to the problem of asynchronous fermentation between lignocellulose and perishable materials in compost, the combined technology of low-temperature hydrochar and compost has been studied. Hydrochar was prepared through low-temperature hydrothermal reactions and applied to aerobic fermentation. The response relationship between lignocellulose content, electron transfer capability, and microbes was explored. The results showed that a pore structure with oxygen-containing functional groups was formed in hydrochar, promoting electron transfer during composting. With the rapid increase in composting temperature, the lignocellulose content decreased by 64.36 mg/g. Oceanobacillus, Cerasibacillus, Marinimicrobium, and Gracilibacillus promoted the degradation of lignocellulose and the carbon/nitrogen cycle during aerobic fermentation, and there was a significant response relationship between electron transfer capability and functional microbes. The combined application of hydrochar and aerobic fermentation accelerated the degradation of lignocellulose. This study provides technical support for the treatment of heterogeneous organic waste. © 2023 Elsevier Ltd

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