简化注射剂在工业规模的牛堆肥过程中对性能和微生物群的影响
Weiwei Dong1, Rui Zhou2, Xudong Li3
1National Key Laboratory of Agricultural Microbiology and College of Life Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; College of Life Sciences, Hubei Normal University, Huangshi 435002, China.
Bioresource technology
|November 28, 2023
概括
简化的Bacillus subtilis和Aspergillus niger注射剂显著改善了工业牛堆肥. 它提高了热友温度,减少了有机物质,并增强了微生物活动,以加速分解.
科学领域:
- 环境微生物学 环境微生物学
- 生物技术是生物技术.
- 废物管理 废物管理
背景情况:
- 动物肥料的工业化堆肥对于废物管理和营养物质循环利用至关重要.
- 优化堆肥效率需要了解微生物动力学和增强热友性阶段.
- 简化微生物注射剂提供了一种改善堆肥过程的潜在策略.
研究的目的:
- 评估简化注射剂 (Bacillus subtilis和Aspergillus niger) 对工业牛堆肥的影响.
- 分析注射对堆肥性能的影响,包括温度,有机物降解和发芽指数.
- 为了研究微生物社区结构,功能和代谢途径的转变,诱导的注射剂.
主要方法:
- 工业规模的牛堆肥使用简化注射剂.
- 对堆肥参数的监测:温度,有机物含量和发芽指数.
- 使用高通量测序和元基因组方法进行微生物社区分析.
主要成果:
- 接种提高了热友的平均和峰值温度,分别为7°C和10°C.
- 50°C以上的堆肥持续时间从12天延长到26天,有机物减少,发芽指数增加.
- 微生物分析揭示了多样性的转变,其中阿斯伯吉勒斯在美索菲尔阶段占主导地位,而细菌,lysinibacillus和clostridium在热爱阶段得到丰富.
- 超基因组数据显示,与菌素降解和热生成相关的基因,特别是碳水化合物活性酶的丰富性增加.
结论:
- 简化的注射器有效地提高了工业牛堆肥的性能.
- 微生物的转变和功能基因的丰富,特别是对纤维素蛋白的降解,是推动改进堆肥的关键机制.
- 这种方法为加快堆肥和提高最终堆肥产品质量提供了一个可行的策略.
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