影响从自然资源中提取 (多) 的因素,使用深度阳光溶剂与超声波辅助提取相结合
Shahida Anusha Siddiqui1,2, Ali Ali Redha3,4, Molla Salauddin5
1Campus Straubing for Biotechnology and Sustainability, Technical University of Munich, Straubing, Germany.
Critical reviews in analytical chemistry
|October 18, 2023
概括
结合超声波辅助提取 (UAE) 的深度欧溶剂 (DES) 显著增强了从自然来源提取 (多) 的效果. 优化超声波频率和DES组成等参数是最大限度地提高产量的关键.
科学领域:
- 绿色化学和可持续的提取技术
- 自然产品化学和植物化学
- 分析化学和分离科学 分析化学和分离科学
背景情况:
- 对于 (多) 的传统溶剂提取方法通常面临效率和环境影响的局限性.
- 由于它们的可调性特性和生物降解性,深度环氧溶剂 (DES) 提供了一个有前途的替代品.
- 超声波辅助提取 (UAE) 是一种技术,可以加强提取过程,提高产量和缩短时间.
研究的目的:
- 审查和讨论影响利用DES与阿联结合提取 (多) 的关键因素.
- 确定DES和阿联的最佳参数,以最大限度地提高自然资源 (多) 提取效率.
- 为改进 (多) 回收和应用提供未来研究信息.
主要方法:
- 关于 (多) 提取的深溶解剂 (DES) 和超声辅助提取 (UAE) 的文献综述.
- 对DES的关键参数分析:组成,溶剂与样品的比率,温度和持续时间.
- 对阿联的关键参数分析:频率,功率,强度,工作周期,温度和持续时间.
主要成果:
- 最佳的阿联参数包括: 20-50 kHz 频率, 60-120 W/cm2 强度, 40-80% 工作周期, 10-30 分钟的持续时间和 25-50°C 的温度.
- 有效的DES系统包括胆化物与甘油或乳酸,以10-30:1的溶剂对样本质量比.
- 由于DES的高粘度存在重大限制,因此需要根据目标化合物和原材料进行仔细的选择.
结论:
- 将DES与阿联结合,为 (多) 提取提供了一种高效的方法,超越了传统技术.
- 仔细优化DES和阿联参数对于最大限度地提高开采产量和实现更广泛的应用至关重要.
- 进一步的研究应解决DES粘度挑战,以提高过程可扩展性和效率.
相关概念视频
Extraction: Advanced Methods
463
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...
463
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
Extraction: Effects of pH
509
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...
509


