从塔拉贡 (Artemisia dracunculus L.) 提取功能性化合物,采用不同性质的深层阳性溶剂
Yusuf Can Gerçek1,2, Naciye Kutlu3, Saffet Çelik4
1Department of Biology, Faculty of Science, Istanbul University, 34116, Istanbul, Turkey.
Chemistry & biodiversity
|August 13, 2023
概括
深度浸泡溶剂 (DES) 在从中提取生物活性化合物如和氨基酸方面表现出高效率. 这些绿色溶剂为制备药用植物提取物的传统有机溶剂提供了有希望的替代品.
科学领域:
- 绿色化学 绿色化学
- 植物化学 植物化学
- 分析化学 分析化学
背景情况:
- 龙 (Artemisia dracunculus L.) 是一种有价值的药用植物.
- 传统的有机溶剂对植物提取产生了环境问题.
- 深度环氧溶剂 (DES) 提供了一个可持续的替代品.
研究的目的:
- 为了评估不同DES组合的有效性,从中提取生物活性化合物.
- 为了比较DES提取产量与传统溶剂,如乙醇和甲醇.
- 分析提取物中的,黄类,,氨基酸和氨基酸概况.
主要方法:
- 制备不同组成的DESs.
- 使用DESs从中提取生物活性化合物.
- 总醇,黄类和益西安丁含量的量测量.
- 使用染色学技术分析单个和氨基酸样本.
- 对抗氧化剂和抗微生物活性进行评估.
主要成果:
- 对于个别的醇,DES10显示出更高的提取效率 (大约. 59毫克/100克) 和氨基酸 (大约. 2500毫克/公斤) 与乙醇和甲醇相比.
- 德斯提取物具有显著的总 (59.0977.50毫克GAE/100克),总黄 (28.6845.55毫克GAE/100克) 和抗氧化活性 (42.96146.86毫克TE/100克).
- 和氨基酸的DES提取产量超过了以乙醇和甲醇获得的产量.
结论:
- 深度欧性溶剂是有效和高效的替代物有机溶剂从提取生物活性化合物.
- 使用DES与绿色化学原则保持一致,提供一种环保的方法.
- 德斯具有可持续生产各种应用的提取物的潜力.
相关概念视频
Extraction: Advanced Methods
485
Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
485
Extraction: Partition and Distribution Coefficients
2.5K
The distribution law or Nernst's distribution law is the law that governs the distribution of a solute between two immiscible solvents. This law, also known as the partition law, states that if a solute is added to the mixture of two immiscible solvents at a constant temperature, the solute is distributed between the two solvents in such a way that the ratio of solute concentrations in the solvents remains constant at equilibrium.
For extracting a solute from an aqueous phase into an...
For extracting a solute from an aqueous phase into an...
2.5K
Sample Preparation for Analysis: Advanced Techniques
391
Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...
391
Extraction: Effects of pH
533
Consider a neutral form of an amine, B, with a partition coefficient, K, in a liquid mixture containing organic and aqueous phases. The pH of the aqueous phase affects the charge on acidic and basic solutes, and the charged form is usually more soluble in the aqueous phase. Suppose the conjugate acid form of the amine is soluble only in the aqueous phase while the base form is soluble in both phases. Then the distribution coefficient, D, can be given as the ratio of amine concentration in the...
533
Solvents
64.7K
A solvent is a substance, most often a liquid, that can dissolve other substances. Here, the substance being dissolved is called a solute. When a solvent and a solute combine, they form a solution - a homogenous mixture of both the solvent and the solute. Water is a universal biological solvent. Its polar structure allows it to dissolve many other polar compounds. The ability of water to dissolve is governed by a balance between water molecules binding to each other and binding to the solute.
A...
A...
64.7K


