巴西红叶提取物的制备分离,使用渐变逆流色谱
Begoña Gimenez-Cassina Lopez1, Maria Cristina Marcucci2, Silvana Aparecida Rocco3
1Faculty of Pharmaceutical Science, State University of Campinas (UNICAMP), Campinas 13083-871, SP, Brazil.
Molecules (Basel, Switzerland)
|June 27, 2024
概括
研究人员开发了一种新方法,从巴西红色中分离出关键化合物. 这种技术有效地分离生物活性分子,使其能够进一步研究其治疗性质并作为标准使用.
科学领域:
- 自然产品 化学 化学
- 植物化学 植物化学
- 染色图学技术 染色图学技术
背景情况:
- 蜂是一种复杂的蜜蜂产品,其成分基于植物来源而变化.
- 巴西红色石表现出有前途的抗菌活性,需要确定其活性化合物.
- 许多关键化合物负责的生物活性是商业上不可用的.
研究的目的:
- 开发一种高效,准备规模的方法,从巴西红色中分离生物活性化合物.
- 为此目的,将逆流色谱 (CCC) 和准备性高性能液体色谱 (HPLC) 结合起来.
- 为了获得足够数量的标记化合物用于进一步的生物测试和作为标准的使用.
主要方法:
- 开发了一种CCC方法,使用步骤梯度化来去除干扰.
- 优化样品注入和移动相流,以提高效率和柱子稳定性.
- 使用准备HPLC从CCC丰富分数中分离化合物.
主要成果:
- 成功地将2.5克原始巴西红色提取物装载到Midi CCC柱上.
- 隔离并鉴定出三个关键化合物:复星素A,3(R) -7-O-methylvestitol,以及xantochymol/isoxanthochymol异构体.
- 这些化合物被确定为红色的标记物,并有助于其治疗作用.
结论:
- 开发的CCC准备HPLC方法有效地将生物活性化合物从复杂的提取物中分离出来.
- 隔离的化合物可以作为未来研究和治疗应用的有价值的标准.
- 这种方法通过提供纯的标记化合物来促进研究红色的药用特性.
更多相关视频
相关概念视频
01:05High-Performance Liquid Chromatography: Elution Process
455
In High-Performance Liquid Chromatography (HPLC), the elution process is critical to the separation of analytes and the quality of chromatographic results. Elution describes how compounds move through the column and separate based on their interactions with the mobile and stationary phases. This process determines the resolution, peak shape, and retention times in the chromatogram, which are essential for identifying and quantifying components in complex mixtures. Understanding the elution...
455
01:29Types Of Column Chromatography
11.1K
The stability and compatibility of column material with samples are crucial for efficient purification in chromatographic techniques. Various operating parameters such as pH, temperature, or solvent affect the packing of the column material, thereby determining the purification efficiency. The choice of column material also plays an essential role in deciding the operating parameters and can be modified based on the proteins that need to be purified.
Gel Filtration Chromatography
When the...
Gel Filtration Chromatography
When the...
11.1K
01:11High-Performance Liquid Chromatography: Introduction
2.0K
High-performance liquid chromatography(HPLC), formerly referred to as High-pressure liquid chromatography, is a powerful technique used to separate, identify, and quantify components in complex mixtures. The term "high pressure" refers to using high pressure to push the liquid mobile phase through the tightly packed columns.
In HPLC, two phases play a critical role in the separation process:
In HPLC, two phases play a critical role in the separation process:
2.0K
01:10Silica Gel Column Chromatography: Overview
1.1K
Silica gel column chromatography is a technique for separating compounds using a column packed with silica gel as the stationary phase. This method relies on differences in the polarity of compounds. Based on their polarities, compounds move between the stationary phase (silica gel) and the mobile phase (the solvent), forming discrete bands in the column.
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
1.1K
01:13Principles Of Column Chromatography
6.8K
The chromatography technique was first invented in 1901 by Michael S. Tswett, a Russian botanist, to separate plant pigments using organic solvents. Further, in 1941, Archer John Porter Martin and R. L. M. Synge modified the technique by packing silica gel into a column. A mixture of amino acids was then separated on the packed column using chloroform and water mixture as the mobile phase. This was the first report on column chromatography. At present, column chromatography is a widely used...
6.8K
01:10Chromatography: Introduction
4.3K
Chromatography is a technique used to separate compounds based on differences of partitioning between two phases, the stationary phase and the mobile phase.
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
The phase in which the compounds linger or on which the compounds adsorb is called the stationary phase, whereas the mobile phase is the solvent that carries the solutes to be analyzed. In traditional column chromatography, the mixture flows through the stationary phase, and the compounds partition between the stationary and mobile phases...
4.3K