监管机制,同时进行快速碳捕集和优质生物质生产
Xiaorong Wei1, Nengwu Zhu2, Mingyi Xu1
1School of Environment and Energy, South China University of Technology, Guangzhou 510006, PR China.
Bioresource technology
|December 29, 2025
概括
这项研究使用一种新的策略增强了微藻碳固定,显著提高了Chlorella pyrenoidosa的二氧化碳捕获和生物质生产. 该方法还改善了生物质质量,为工业碳利用提供了可持续的途径.
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:
- 生物碳利用系统依赖于高效的碳固定来提高性能和经济可行性.
- 微藻附着系统对高碳固定效率和生物质产量产生有希望.
- 在微藻碳利用方面,机械的理解和生物质质量控制仍然是挑战.
研究的目的:
- 制定积极的监管策略,以加强 Chlorella pyrenoidosa 的碳固定和生物质生产.
- 阐明碳分配机制是微藻生长和生产率提高的基础.
- 评估战略对生物质质量,包括蛋白质和脂质含量的影响.
主要方法:
- 实施了积极监管战略,包括控制二氧化碳水平和微藻附着.
- 量化碳固定率,二氧化碳固定效率和干燥生物质产量.
- 分析了蛋白质和脂质含量,叶绿素,光系统II活性和活性氧物种水平.
主要成果:
- 达到9.68μg CO2/L/d的峰值碳固定率,27%的CO2固定效率和10.26g/L的干燥生物质产量.
- 与对照组相比,在固定速率,效率和产量上分别增加了38倍,5倍和81倍.
- 显著增加蛋白质 (1.30倍) 和脂质 (2.06倍) 含量,以及增强的光合作用效率.
结论:
- 积极监管战略有效地促进了Chlorella pyrenoidosa的碳固定和生物质生产.
- 增强的光合作用效率和受控的氧化还原平衡有助于改善生物质质量.
- 这种方法为将工业烟气转化为有价值的微藻产品提供了一种可行的方法,促进可持续的碳利用.
更多相关视频
07:22Author Spotlight: Unraveling the Role of Earthworms in Enhancing Mineral Weathering for CO2 Removal
Published on: November 10, 2023
4.2K
09:38Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures
Published on: January 7, 2019
9.1K
相关概念视频
C4 Pathway and CAM
48.5K
Most plants use the C3 pathway for carbon fixation. However, some plants, such as sugar cane, corn, and cacti that grow in hot conditions, use alternative pathways to fix carbon and conserve energy loss due to photorespiration. Photorespiration is the process that occurs when the oxygen concentration is high. Under such conditions, the rubisco enzyme in the Calvin cycle binds O2 instead of CO2, which halts photosynthesis and consumes energy.
C4 Pathway
The C4 pathway is used by plants such as...
C4 Pathway
The C4 pathway is used by plants such as...
48.5K
The Calvin Benson Cycle
5.7K
Ribulose 1,5- bisphosphate carboxylase/oxygenase (RuBisCo) is a critical enzyme that catalyzes carbon dioxide assimilation during photosynthesis. However, it is an inefficient enzyme, having an extremely slow catalytic rate. A typical enzyme can process about a thousand molecules per second; however, RuBisCo fixes only around three-carbon dioxides per second. Photosynthetic cells compensate for this slow rate by synthesizing very high amounts of RuBisCo, making it the most abundant single...
5.7K
Bioremediation
22.0K
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.
22.0K
Global Regulatory Systems
545
Global regulatory systems in bacteria enable rapid and coordinated responses to environmental changes by integrating sensory inputs with gene expression, ensuring efficient adaptation to fluctuating conditions. Key global regulatory mechanisms include regulons, two-component systems, sigma factors, and secondary messengers.Regulons and Global RegulatorsA regulon is a collection of genes and operons controlled by a common global regulator. These regulators enable bacteria to prioritize resource...
545
Carbon-dioxide Fixation
584
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
584
Environmental Applications of Microorganisms
901
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...
901
