在高油性食物废物的无氧消化过程中微生物群体的适应
Yangqing Hu1,2,3, Zhaozhi Zhou4, Ce Shen5
1Fair Friend Institute of Intelligent Manufacturing, Hangzhou Vocational and Technical College, Hangzhou, 310018, China. huyangqing@zju.edu.cn.
Scientific reports
|October 25, 2024
概括
适应性厌氧污泥显著增加了从高油性食品废弃物中产生甲的产量. 微生物群落的转变,包括特定细菌和甲基生物的扩散,推动了废物消化的提高效率.
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:
- 由于长链脂肪酸 (LCFA) 的积累,高油脂的食物浪费给无氧消化带来了挑战,抑制了效率.
- 无氧消化是生物降解废物管理的关键技术,具有能量回收的潜力.
研究的目的:
- 为了研究使无氧污泥适应高油度条件以改善食品废物消化的有效性.
- 用高通量测序分析微生物社区在适应适应过程中的变化.
主要方法:
- 无氧污泥与高油性食品废物的适应.
- 测量甲产量的方法.
- 16S rRNA基因的高通量测序 (HTS) 用于分析细菌和古生物群落.
- 监测挥发性脂肪酸 (VFA) 和pH值.
主要成果:
- 与原始污泥相比,与适应污泥相比,甲产量增加了24.9%.
- 主要的细菌系包括Bacteroidetes,Firmicutes,Chloroflexi和蛋白质细菌.
- 像Clostridium和Longilinea这样的功能性分类繁殖,降解LCFA.
- 在考古社区中,性甲细菌 (Hydrogenotrophic Methanobacterium) 在很大程度上取代了性甲菌 (Acetotrophic Methanosaeta).
结论:
- 泥适应是一种有效的策略,可以增强高油性食物废物的无氧消化.
- 微生物群落的动态,特别是特定细菌和甲原体的增加,对于改善LCFA降解和甲生产至关重要.
- 这项研究提供了关于管理高油性食物浪费以利用资源的见解.
相关概念视频
01:30Environmental Applications of Microorganisms
2
Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
2
00:46Bioremediation
18.2K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.2K
01:28Microbial Nutrition
1
Organisms exhibit remarkable metabolic diversity, categorized based on how they acquire energy and carbon. These strategies enable survival in various ecological niches and are essential for maintaining energy flow and nutrient cycling within ecosystems.Energy and Carbon SourcesOrganisms are classified as phototrophs or chemotrophs based on energy acquisition. Phototrophs use light as their energy source, while chemotrophs rely on oxidizing chemical compounds. Further differentiation arises...
1
01:25Lipid Catabolism
1
Triglycerides serve as crucial long-term energy storage molecules in microorganisms, providing a dense source of metabolic energy. Their breakdown is mediated by lipases, which hydrolyze triglycerides into glycerol and free fatty acids. Each of these components follows distinct metabolic pathways, ultimately contributing to ATP synthesis and cellular energy homeostasis.Glycerol MetabolismGlycerol, released from triglyceride hydrolysis, is phosphorylated by glycerol kinase to form...
1
01:23Microbial Fermentation
1
Fermentation is a crucial anaerobic metabolic process that enables microbes to derive energy from sugar without relying on oxygen or an electron transport chain. This process is fundamental to various biological and industrial applications and is classified based on the metabolic products generated.Role of Pyruvate in FermentationPyruvate and its derivatives serve as key electron acceptors in fermentative pathways. The oxidation of NADH to regenerate NAD+ is essential for the continuation of...
1