通过Methanothermobacter marburgensis生产甲的各种减少剂的比较
Maximilian Peter Mock1,2, Rayen Ochi1,3, Maria Bieringer1
1Technology Centre Energy, University of Applied Sciences Landshut, Wiesenweg 1, 94099 Ruhstorf an der Rott, Germany.
Microorganisms
|October 28, 2023
概括
与传统的硫化相比,替代性降解剂,如二化和L-Cysteine-HCl对生物甲化具有前景,提供与传统硫化相比较低的环境影响,具有相似的甲演化率.
科学领域:
- 厌氧微生物学 厌氧微生物学
- 生物技术是生物技术.
- 环境科学环境科学
背景情况:
- 生物甲化依赖于无氧古生物,需要特定的介质和减少剂.
- 硫化 (Na2S) 是常规的减少剂,但人们对其环境和危险影响存在担忧.
研究的目的:
- 为了研究生物甲化的替代还原剂,二酸盐 (Na2S2O4) 和L-Cysteine-HCl.
- 为了比较它们的有效性和对甲演化速率 (MER) 的影响,与硫化 (Na2S) 相比.
主要方法:
- 使用一种新的比较方法培养甲热菌marburgensis.
- 评估Na2S2O4和L-Cys-HCl作为不同度 (0.5,0.25,0.1g/L) 的降解剂.
- 测量连续批次中甲平均演化率 (MER).
主要成果:
- Na2S2O4和L-Cys-HCl产生了与Na2S可比的MER.
- 稳定的MER是通过0.25g/L Na2S2O4或0.1g/L L-Cys-HCl在多个批次中实现的.
- 降解剂的较低度与较高的MER相关.
结论:
- Na2S2O4和L-Cys-HCl是有效的,非腐蚀性和无毒的替代品,用于现场生物甲化.
- 对于大规模应用,Na2S2O4是一个具有成本效益的选择.
- 这些发现为生物甲化过程提供了更可持续的方法.
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