Carbon-Stimulated Bioaugmentation Enhances Thermogenesis, Lignocellulose Degradation, and Humification in Low-Temperature Cattle Manure Composting
炭素刺激によるバイオオーグメンテーションが低温下の牛糞堆肥化における発熱、リグノセルロース分解、および腐植化を促進 (AI 翻訳)
Mengke He, Doudou Jin, Yaowei Chi, Xianzhong Ma, Shunping Zhang, R J Zhou, Shaohua Chu, Pei Zhou, D Zhang
🤖 gxceed AI 要約
日本語
本研究は、低温環境下での牛糞堆肥化の課題に対し、糖蜜と機能性微生物（Streptomyces griseorubens JSD-1 および Paenarthrobacter nitroguajacolicus LDT1-8）の組合せが有効であることを示した。処理T7では最高温度62.1℃に達し、好熱期が2日延長、セルロース・ヘミセルロース分解が44.0%および49.3%向上、フミン酸含有量が33.4%増加した。微生物群集構造の解析から、リグノセルロース分解や腐植化に関与する分類群（Actinobacteriota、Mycothermusなど）が選択的に増加し、代謝ネットワークが強化されたことが明らかになった。
English
This study demonstrates that combining molasses (carbon source) with microbial inoculants (Streptomyces griseorubens JSD-1 and Paenarthrobacter nitroguajacolicus LDT1-8) overcomes the cold-start barrier in cattle manure composting at low temperatures. The treatment (T7) achieved peak temperature 62.1°C, extended thermophilic phase by 2 days, increased cellulose and hemicellulose degradation by 44.0% and 49.3%, and boosted humic acid by 33.4%. Microbial community analysis revealed enrichment of lignocellulose-degrading and humification-driving taxa, leading to a robust metabolic network.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本では北海道などの寒冷地域での畜産廃棄物管理に示唆を与える。堆肥化効率向上は有機廃棄物の温室効果ガス削減に寄与する可能性があるが、本論文は直接的なGX政策や開示には関連しない。
In the global GX context
The findings offer a practical strategy for improving composting efficiency in cold-climate regions, which can reduce methane emissions from open waste storage and improve soil carbon sequestration. However, the paper does not directly address climate disclosure or carbon accounting frameworks.
👥 読者別の含意
🔬研究者:Demonstrates a synergistic bioaugmentation approach for low-temperature composting, with mechanistic insights into microbial community dynamics.
🏢実務担当者:Provides a feasible additive combination (molasses + specific microbes) to accelerate composting in cold conditions, potentially reducing operational time and emissions.
📄 Abstract（原文）
Low ambient temperatures severely restrict the start-up efficiency and microbial bioconversion of livestock manure during aerobic composting. To overcome this “cold-start” barrier, this study investigated the coupled effects of an easily accessible carbon source (molasses) and functional microbial inoculants (Streptomyces griseorubens JSD-1 and Paenarthrobacter nitroguajacolicus LDT1-8) on cattle manure composting. Results demonstrated that the combined strategy significantly expedited thermogenesis, achieving a peak temperature of 62.1 °C and extending the thermophilic phase (>50 °C) by 2 days. This enhanced microbial activity accelerated organic matter stabilization, increasing cellulose and hemicellulose degradation by 44.0% and 49.3%, respectively, and boosting humic acid content by 33.4% in treatment T7 (molasses + JSD-1 + LDT1-8). Amplicon sequencing revealed that the amendments reshaped microbial community structure, selectively enriching lignocellulose degradation and humification-driving taxa (e.g., Actinobacteriota and Mycothermus), leading to a more robust and modular metabolic network. Redundancy analysis confirmed that this directed succession was primarily driven by organic matter degradation and humic fraction accumulation. Overall, the combined application of molasses and microbial inoculants promoted temperature rise, lignocellulose degradation, and humification by reshaping microbial community structure, providing an effective strategy for improving cattle manure composting efficiency under low-temperature conditions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/microorganisms14051077first seen 2026-05-17 06:00:20 · last seen 2026-06-08 04:53:51
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