通过源操纵,在异性的auxenochlorella原体中进行更高效的铁丰富
Byron Perez1, Yanmeng Yang2, Daniel Roxby2
1Sustainable Food Processing Laboratory, Institute of Food Nutrition and Health, ETH Zurich, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; Singapore-ETH Centre, 1 Create Way, 138602 Singapore, Singapore.
Bioresource technology
|February 1, 2026
概括
在微藻中最大化铁的生物积累需要特定的培养策略. 通过去除有机物和控制含量,可显著提高可持续食品和料应用中的铁含量.
科学领域:
- 生物技术是生物技术.
- 营养科学 营养科学
- 可持续农业 可持续农业
背景情况:
- 微藻类,像Auxenochlorella protothecoides一样,对微量营养素的输送有希望,特别是铁的丰富.
- 微藻的异质培养是有效的,但由于溶解性差和与有机物复合,对铁的吸收构成挑战.
研究的目的:
- 调查源和可用性对异质培养的微藻中铁积累的影响.
- 确定最佳的培养条件,以增强Auxenochlorella protothecoides中的铁生物积累.
主要方法:
- 四种不同的Auxenochlorella protothecoides种植策略的比较.
- 补充铁氨酸酸盐在200μg/mL.
- 使用酸微磁共振放松计 (酸μMRR) 和感应合等离子体质谱 (ICP-MS) 量化细胞内铁的量化.
主要成果:
- 通过铁补充将微藻转移到无和无有机介质中,导致高效的铁积累.
- 达到了 3170 ± 254 毫克/公斤干重的细胞内铁含量,比标准条件增加 25 倍.
- 酸μMRR与ICP-MS在铁量化方面表现出强烈一致,提供了更快,更简单的分析.
结论:
- 消除溶解的有机物和控制的剥夺是增强微藻中铁生物积累的关键策略.
- 这种方法显著改善了微藻作为食品,料和农业铁的来源.
- 酸μMRR是分析可持续应用中富含营养的微藻类的一个有价值的工具.
相关概念视频
The Nitrogen Cycle
60.2K
Nitrogen atoms, present in all proteins and DNA, are recycled between abiotic and biotic components of the ecosystem. However, the primary form of nitrogen on Earth is nitrogen gas, which cannot be used by most animals and plants. Thus, nitrogen gas must first be converted into a usable form by nitrogen-fixing bacteria before it can be cycled through other living organisms. The use of nitrogen-containing fertilizers and animal waste products in human agriculture has greatly influenced the...
60.2K
Overview of Nitrogen Metabolism
11.4K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of ammonia, ammonium ions, nitrate, nitrite, or nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
11.4K
Inorganic Nitrogen Assimilation
529
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
529
Chirality at Nitrogen, Phosphorus, and Sulfur
7.0K
Chirality is most prevalent in carbon-based tetrahedral compounds, but this important facet of molecular symmetry extends to sp3-hybridized nitrogen, phosphorus and sulfur centers, including trivalent molecules with lone pairs. Here, the lone pair behaves as a functional group in addition to the other three substituents to form an analogous tetrahedral center that can be chiral.
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
7.0K
Manipulation and Analysis
301
GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
301
Sinusoidal Sources
1.2K
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
1.2K


