开发功能性联盟,用于堆肥性纤维素废物的预处理:一个简单有效的解决方案,一个大规模的问题
J A López-González1, F Suárez-Estrella1, M M Jurado1
1Department of Biology and Geology, CITE II-B, University of Almería, Agrifood Campus of International Excellence, ceiA3, CIAIMBITAL, 04120, Almería, Spain.
Journal of environmental management
|March 22, 2024
概括
使用细菌菌株的微生物联盟,在植物废物堆肥中增强了纤维素蛋白降解. 与未经处理的对照组相比,这种生物激活策略改善了堆肥质量.
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:
- 微生物酶的多功能性驱动着有机物质的降解.
- 纤维素结构对堆肥微生物群构成了重大挑战.
- 提高红纤维素废物的生物降解性对于高效的堆肥至关重要.
研究的目的:
- 在早期堆肥阶段提高植物废物的生物降解性.
- 为了评估具有红细胞分解能力的微生物联盟的疗效.
- 识别和应用特定的微生物菌株用于菌素分解.
主要方法:
- 对可培养微生物群进行查,以检测其纤维细胞分解活性.
- 在蔬菜废物 (番茄植物和修剪残留物) 上应用精选的微生物菌株 (纯种植和联盟).
- 评估物理化学参数 (水分,有机物质,灰,C/N比率) 和降解速度 (纤维素,半纤维素,素),包括4天累积呼吸指数 (AT4).
主要成果:
- 他们选择了三种微生物菌株 (Bacillus safensis,Bacillus licheniformis,Fusarium oxysporum).
- 低剂量 (10^4 CFU g^-1) 应用的细菌菌株在10天内显著增加了与真菌应用或对照组相比的细菌纤维素降解率.
- 微生物联盟处理的结果是优越的农学质量的堆肥.
结论:
- 微生物联盟的应用,特别是Bacillus菌株,是生物激活纤维素废物的有效策略.
- 这种方法增强了纤维素的降解,并改善了最终的堆肥质量.
- 微生物联盟显示,作为一个工具,在堆肥之前预处理纤维素体废物具有潜力.
相关概念视频
00:46Bioremediation
17.5K
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.
17.5K
01:25Production of Organic Acids
111
Lactic acid, an important organic acid extensively applied in food, pharmaceutical, and biodegradable polymer industries, is primarily produced via microbial fermentation. This method is favored over chemical synthesis due to its environmental sustainability and capacity for enantiomerically pure product formation. Among various microbial processes, the fermentation of starch-based substrates stands out due to the abundance and renewability of raw materials like corn and potatoes.Hydrolysis of...
111
01:27Bioplastics
73
Bioplastics derived from microbial processes present a sustainable alternative to conventional petroleum-based plastics. Among these, polyhydroxyalkanoates (PHAs), particularly polyhydroxybutyrates (PHBs), have emerged as prominent candidates due to their biodegradability and biocompatibility. These polymers are synthesized by a variety of bacteria, such as Cupriavidus necator and Pseudomonas putida, which naturally accumulate PHAs as intracellular carbon and energy reserves, especially under...
73
01:25Biofuels
112
The microbial conversion of organic matter into biofuels holds potential as a renewable energy source. Among biofuel sources, microalgae are recognized as a highly efficient and adaptable feedstock for biodiesel production, owing to their rapid biomass accumulation, elevated lipid productivity, and capacity to proliferate in diverse aquatic systems, including freshwater, marine, and wastewater habitats. Unlike terrestrial crops, microalgae do not compete for land and can achieve significantly...
112
01:28Microbial Bioremediation of Plastics
144
Polyethylene terephthalate (PET) is a synthetic polymer widely utilized in the packaging industry, particularly for bottles and containers. Due to its chemical stability and durability, PET accumulates in the environment, contributing significantly to plastic pollution. It comprises repeating units of terephthalic acid and ethylene glycol, resulting in a semi-crystalline structure that is resistant to natural degradation processes.A notable breakthrough in plastic biodegradation came with the...
144