提高微藻的甲产量:无生物应激和细胞破坏与石英粉
Marek Klin1, Andrzej Lewicki2, Filip Pniewski1
1University of Gdańsk, Department of Oceanography and Geography al. Marszałka Piłsudskiego 46, 81-378 Gdynia, Poland.
Bioresource technology
|September 22, 2024
概括
这项研究通过使用一种新的石英粉末细胞破坏方法来增强微藻生物质甲生产. 这种方法显著提高了Chlorella vulgaris和Monoraphidium contortum中的甲产量.
科学领域:
- 生物技术是生物技术.
- 可再生能源可再生能源是可再生能源.
- 环境科学 环境科学
背景情况:
- 微藻生物质是生产生物气体的有希望的基质.
- 有效提取细胞内成分对于最大限度地提高甲产量至关重要.
- 目前的细胞破坏方法可能耗费大量能量或效率低下.
研究的目的:
- 为了研究微藻生物质的生物化学甲潜力 (BMP).
- 引入和评估一种使用石英粉 (SiO2) 的新型机械细胞破坏方法.
- 为了增强来自Chlorella vulgaris和Monoraphidium contortum的甲 (CH4) 生产.
主要方法:
- 两阶段的藻类培养,涉及和盐度转移.
- 微藻生物质的生物化学修饰.
- 使用石英粉 (SiO2) 的机械细胞破坏.
- 测量甲 (CH4) 产量 (mL CH4/g 挥发性固体 - VS).
主要成果:
- 新的细胞破坏方法显著增加了BMP.
- 菌产生了305毫升CH4/gVS (51%的增长).
- 莫诺拉菲迪亚 (Monoraphidium contortum) 的产量为324毫升CH4/g VS (86%的增长).
结论:
- 基于压力培养和机械细胞破坏的综合方法有效地提高了微藻甲产量.
- 这种方法为优化从微藻生物质生产生物气的生产提供了一个有希望的策略.
- 该研究强调了SiO2辅助破坏在工业规模应用中的潜力.
相关概念视频
Microorganisms in Agriculture and Food industry
2.0K
Microorganisms play a crucial role in agriculture and the food industry, contributing to soil fertility, crop protection, and food production. Their functions range from nitrogen fixation and biopesticide production to fermentation and food preservation, making them indispensable to sustainable farming and food safety.Role in AgricultureNitrogen-fixing bacteria, such as Rhizobium (symbiotic) and Azotobacter (free-living), convert atmospheric nitrogen into ammonia through biological nitrogen...
2.0K
Microbe-Plant Interactions
140
Microbe-plant interactions represent a dynamic spectrum of associations shaped by intricate chemical signaling. These interactions can be neutral, beneficial, or detrimental, and profoundly influence plant physiology, growth, and ecosystem function. The plant microbiome, comprising bacteria, fungi, archaea, protists, and viruses, plays a pivotal role in mediating these effects through surface colonization, internal colonization, or systemic symbiosis.Mutualistic associations, particularly with...
140
Microbial Leaching
227
Microbial leaching, also known as bioleaching, is an environmentally favorable method for extracting metals from low-grade ores using specific microorganisms. This biotechnological approach is particularly valuable for mining operations targeting copper, gold, and uranium, where traditional extraction methods may be economically or environmentally impractical.Copper Leaching and Microbial CatalysisIn copper bioleaching, crushed ore is arranged into heaps and irrigated with a dilute sulfuric...
227
Microbial Corrosion
93
Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
93
Production of Antibiotics
265
Penicillin, one of the earliest and most widely used antibiotics, is produced industrially by the filamentous fungus Penicillium chrysogenum. Large stirred-tank bioreactors ranging from tens to hundreds of thousands of liters maintain tightly controlled temperature, pH, and dissolved oxygen conditions to support fungal metabolism and maximize antibiotic yield. Penicillin is a secondary metabolite, synthesized primarily during the stationary growth phase, which requires a carefully managed...
265
Production of Biopesticides
108
Biopesticides offer a sustainable alternative to chemical pesticides, utilizing microbial agents to control agricultural pests. Bacillus thuringiensis (Bt) is a widely employed bacterium known for its potent insecticidal activity. Bt biopesticides are favored for their specificity to insect pests, minimal environmental impact, and natural degradability.Mechanism of Bt Toxin Action Bt produces insecticidal crystal (Cry) proteins during its sporulation phase. These proteins form parasporal...
108


