从农业工业残留物中高效地生产甲,使用无氧真菌丰富的联盟
Nitiya Thongbunrod1, Pawinee Chaiprasert2
1Biotechnology Program, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkok, 10150, Thailand.
World journal of microbiology & biotechnology
|June 11, 2024
概括
无氧真菌联盟增强了从纤维素生物质的沼气生产. 量身定制的微生物尾酒显著增加了麻和油棕残留物中的甲产量,提供了可持续的能源解决方案.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 微生物学 微生物学
背景情况:
- 无氧消化 (AD) 是通过生物气体生产减缓气候变化和可再生能源的关键.
- 研究传统上侧重于细菌和甲基生物,忽视了无氧真菌在纤维素酶降解中的作用.
- 细胞生物质为生物气生产提供了一个庞大的,未充分利用的资源.
研究的目的:
- 调查无氧细胞解菌在增强从细胞生物质的甲生产中的潜力.
- 开发和评估量身定制的微生物尾酒,以提高生物气产量.
- 评估真菌-细菌联盟在降解多种生物质基质方面的有效性.
主要方法:
- 布法罗的乳头注射剂被丰富,以创建一个无氧真菌联盟 (AFC) 和一个无氧纤维细胞分解性微生物联盟 (ALMC).
- 五种微生物尾酒 (AF0,AF20,AF50,AF80,AF100) 通过不同的AFC和ALMC比率 (w/w) 制定.
- 甲产量被评估使用麻和油棕残留物 (空果束,中石纤维) 作为基质.
主要成果:
- 最高的甲产量为337毫升/克VS (麻纸质),215毫升/克VS (空果束) 和54毫升/克VS (半角纤维).
- 与对照组相比,含真菌,水解细菌,合成细菌和甲基生物的尾酒增加了麻豆肉质的2.1-2.6倍和空果束的1.1-1.2倍的甲产量.
- 无氧真菌联盟有效地降解了无氧纤维素和粉生物质,而不会受到有机酸的抑制,与一些细菌联盟不同.
结论:
- 量身定制的微生物尾酒,特别是那些包含无氧真菌的尾酒,显著提高了从纤维素生物质中产生甲的产量.
- 该研究强调了无氧真菌在克服无氧消化过程中的降解限制方面的潜力.
- 优化的微生物联盟提供了一个有前途的战略,用于从各种农业残留物有效地产生生物气体.
相关概念视频
Environmental Applications of Microorganisms
1.5K
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...
1.5K
Microbial Interactions: Mutualism
99
Mutualism is a symbiotic interaction in which all participating organisms benefit. These relationships can be obligate or facultative and are fundamental to ecosystem functions across diverse biological systems.Plant–Fungi MutualismOne well-known example is the association between plant roots and mycorrhizal fungi, such as Rhizophagus species. The fungal hyphae penetrate the root hairs and the epidermis, forming an extensive hyphal network that establishes a symbiotic association. Through...
99
Microbes and Methanogenesis
108
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...
108
Microbes in Food Production
409
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...
409
Microbes in the Production of Fermented Foods
340
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...
340
Production 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


