相关实验视频
Updated: May 7, 2026
07:44
Analysis of Fatty Acid Content and Composition in Microalgae
Published on: October 1, 2013
59.8K
在PEF处理后从微藻中提取双相脂质,可降低下游工艺的能源需求
Ioannis Papachristou1, Natalja Nazarova2, Rüdiger Wüstner2
1Institute for Pulsed Power and Microwave Technology (IHM), Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany. ipapachristou@hotmail.gr.
Biotechnology for biofuels and bioproducts
|January 28, 2025
概括
脉冲电场 (PEF) 处理后的化显著提高了微藻脂质提取产量. 在化后的双相溶剂系统大大减少了溶剂和能源的使用,改善了生物炼油商业化前景.
科学领域:
- 生物技术是生物技术.
- 生物炼油厂 是一个生物炼油厂.
- 处理藻类生物质 处理藻类生物质
背景情况:
- 脉冲电场 (PEF) 处理导致微藻中水溶性成分挤出.
- 在生物炼油厂中,可以利用这种现象,在脂质提取之前加入一个潜伏期.
- 这项研究研究了通过PEF后化优化脂质提取.
研究的目的:
- 为了评估化时间对PEF处理后微藻脂质提取效率的影响.
- 探索和调整溶剂系统,以改善化微藻生物质的脂质回收.
- 评估优化脂质提取方法的经济和能源可行性.
主要方法:
- 辅菌原始体被用PEF (0.25或1.5MJ/kgDW) 治疗,并在24小时内化.
- 使用单相和双相溶剂系统 (乙醇::水) 进行了脂质提取.
- 分析了提取动力学,尼罗河红色染色与显微镜相结合可视化了细胞变化.
主要成果:
- 在10分钟内化显著增加了脂质产量 (31.2%的DW对1.81%的DW).
- 一个双相溶剂系统 (1:6:0.4vol/vol/vol) 从化生物质获得了27%的DW产量,效率为69%.
- 双相方法使用37毫升溶剂/g生物质,而单相方法使用75.6毫升,能量比为1.6比9.9.
结论:
- 在化后的PEF治疗大大提高了微藻脂质产量.
- 双相溶剂系统可显著降低溶剂消耗和溶剂回收的能源需求.
- 这些优化的提取策略增强了微藻生物炼油厂的商业化潜力.
相关概念视频
01:25Lipid Catabolism
1.5K
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...
1.5K
01:27Upstream Processing
103
Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
103
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