人間の排泄物のアップサイクリング:腸内微生物群と土壌微生物群の軸
Jeff Meilander1,2, Chloe Herman1,3, Andrew Manley1,2
1Center for Applied Microbiome Science, Pathogen and Microbiome Institute, Northern Arizona University, Flagstaff, AZ, United States.
ISME communications
|September 2, 2025
まとめ
人間の排泄物の堆肥化 (HEC) は,廃棄物を土壌のような物質に変えて,病原体指標を1年以内に削減します. この持続可能な方法は 腸に関連した微生物から 環境に関連した微生物へと移行し 栄養素のリサイクルを促進します
科学分野:
- 環境微生物学
- 廃棄物管理科学
- 持続可能な衛生
背景:
- 人間の排泄物の堆肥化 (HEC) は,廃棄物の管理,栄養素のリサイクル,淡水と肥料への依存を減らすための持続可能なアプローチを提供します.
- HEC中の微生物の動態を理解することは,安全性を確保し,プロセスを最適化するために不可欠です.
研究 の 目的:
- 1年間の人間の排泄物を堆肥化する際の微生物の順番を分析する.
- 糞便の指標生物が検出できず,微生物群が土壌や従来の堆肥に似ているかどうかを判断する.
- HECの最適化と生物探査のための高解像度の微生物群データを提供する.
主な方法:
- 人間の排泄物の堆肥化と,メソフィルの条件下で19リットルのバケツを複製する.
- 微生物コミュニティの分析による週2回のサンプル採取
- qPCRと培養を用いた便の指標 (Escherichia coli,Clostridium perfringens) の検出
主要な成果:
- 複製体内で独特の微生物の継承軌跡が観察されました.
- 大量の微生物コミュニティのシフトは25週ほどで発生し,糞と関連した分類は減少し,環境分類は増加した.
- 微生物群は腸のような状態から 土壌や従来の堆肥のような状態に 移行しました
結論:
- HECは微生物群を環境状態に効果的に変換し 堆肥化が成功していることを示します
- 病原体リスクの評価は,特に熱愛性温度が達成されない場合,依然として重要です.
- この研究は,HECの最適化,熱愛性堆肥の研究,および生物探査のための貴重なデータを提供します.
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