麦酒厂废弃物降低了甲生产,改变了乳液发酵,微生物群组成和CAZymes概况
Pradeep Kumar Malik1, Shraddha Trivedi1, Archit Mohapatra1
1ICAR-National Institute of Animal Nutrition and Physiology, Bangalore 560030, India.
Microorganisms
|July 27, 2024
概括
麦酒厂废弃物 (OBW) 可以取代昂贵的缩物在牲畜料中,大大减少甲 (CH4) 产量. 然而,需要最佳水平来保持料发酵,同时减轻温室气体排放.
科学领域:
- 农业科学 农业科学
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 麦酒厂废物 (OBW) 由于积累而构成环境挑战.
- 在牲畜料中用OBW取代昂贵的缩物提供了经济和环境的好处.
- 在反动物的饮食中,OBW具有作为甲 (CH4) 缓解剂的潜力.
研究的目的:
- 调查用OBW取代缩剂对CH4生产的影响.
- 评估OBW对料发酵,微生物群和CAZymes的影响.
- 确定OBW包含的最佳水平,以减轻CH4排放而不会影响料质量.
主要方法:
- 进行了一项体外试验,使用了五种不同比例的OBW治疗方法.
- 评估总气体产量,CH4产量,微生物种群 (Firmicutes,Euryarchaeota,Methanobrevibacter) 和原生动物.
- 分析了料发酵参数和碳水化合物酶作用酶 (CAZymes).
主要成果:
- 观察到总天然气产量的线性下降随着OBW纳入的增加.
- 甲 (CH4) 产量减少了38-52%,当缩物被60-100%的OBW取代时.
- 包括OBW改变了特定微生物和原生动物的丰富性,并影响了发酵.
结论:
- 麦酒厂废弃物 (OBW) 可以部分取代缩物并有效地减轻CH4的产量.
- 发酵的同时下降需要仔细确定OBW含量水平.
- 在牲畜料中战略性使用OBW可以有助于减少温室气体 (GHG) 排放.
相关概念视频
01:26Microbes and Methanogenesis
Methanogenesis is a critical microbial process in anaerobic ecosystems responsible for the biological production of methane, a potent greenhouse gas and valuable biofuel. This metabolic pathway is primarily facilitated by methanogenic archaea, which thrive in anoxic environments such as wetlands, sediments, and animal gastrointestinal tracts. The absence of oxygen in these habitats prevents aerobic respiration, thereby favoring alternative biochemical pathways for organic matter degradation.In...
01:30Microbial Wastewater Treatment
Microbial communities in aquatic ecosystems play a key role in the natural breakdown of contaminants introduced through domestic and industrial effluents. Acting as biological catalysts, these microbes change and mineralize a wide range of organic and inorganic pollutants under different redox conditions.In oxygen-rich surface waters, aerobic heterotrophs lead organic matter breakdown, using oxygen as the terminal electron acceptor to efficiently oxidize substrates to carbon dioxide and water.
01:27Microbes and Climate Change
Microorganisms are pivotal agents in Earth's biogeochemical cycles, significantly influencing climate dynamics through their metabolic activities. These microbes modulate the levels of key greenhouse gases by both contributing to and helping mitigate climate change.Microbial Contributions to Greenhouse Gas EmissionsRising global temperatures accelerate microbial metabolism, which, in turn, speeds up the decomposition of organic matter. This process releases carbon dioxide (CO₂) through...
01:29Microbes in Food Production
Microbial fermentation is central to food biotechnology, enhancing flavor, texture, preservation, and stability. Fermentative microorganisms metabolize carbohydrates into organic acids, alcohols, and other metabolites that inhibit spoilage organisms and improve digestibility while contributing distinctive sensory qualities.In baking, amylases naturally present in flour hydrolyze starch into monosaccharides such as glucose, which Saccharomyces cerevisiae ferments anaerobically. Through...
01:27Microbes in the Production of Fermented Foods
Lactic acid bacteria (LAB) and molds are instrumental in fermenting plant-based foods to enhance preservation and ensure year-round availability. These microbial processes convert plant carbohydrates into organic acids and other metabolites that inhibit spoilage organisms and contribute to the sensory qualities of the final product.In sauerkraut production, cabbage goes through a microbial succession that starts with cocci such as Leuconostoc mesenteroides. These microbes begin fermentation by...
01:25Production of Organic Acids
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...