Solvent extraction is a highly efficient and environmentally friendly separation and purification technology, which realizes the green separation of target compounds through selective solvents. As a company dedicated to green chemistry research, CD BioSciences-GreenChemistry provides professional and customized solvent extraction separation and purification services to help clients extract and purify target compounds in an efficient and environmentally friendly manner.
Solvent extraction is a technique for separating substances based on differences in their solubility in a solvent, which is based on the principle of utilizing the differences in the solubility of each component of a sample in a specific solvent to separate them completely or partially. The solvent extraction method can be used to extract the active ingredients in solid, liquid, and semi-fluid samples, such as the active ingredients in herbal medicine and the nutrients in food. According to the different extraction objects, the solvent extraction method can be divided into the leaching method and extraction method. Leaching is mainly used for the extraction of solid samples, while extraction is used to extract a component from a solution.
Fig.1 Green solvents for the extraction of natural products. (Chemat, et al., 2019)
| Green Solvent Name | Characteristics | Applications |
| Water | Cheap, easy to obtain, safe, non-toxic, volatile, easy to recycle green solvent | For the separation of a wide range of chemical components in plants |
| Ethanol | Inexpensive, readily available, safe, volatile green solvents | For the separation of alkaloids, saponins, flavonoids, lactones, volatile oils, organic acids, and chlorophylls |
| Ionic liquid | Designable, low volatility, high thermal and chemical stability green solvents | For chemical reactions and separation processes |
| Carbon dioxide | Green supercritical solvents that are non-toxic, non-hazardous, readily available and inexpensive | For the separation of organic substances |
As a leading company focusing on green chemistry separation technology, CD BioSciences-GreenChemistry strives to provide clients with efficient and environmentally friendly separation and purification services by solvent extraction method. We use selected green solvents combined with advanced extraction processes and equipment to achieve efficient extraction and purification of target compounds.
To improve solvent permeability and extraction efficiency, we finely pulverize solid samples and homogenize liquid or semi-fluid samples. Next, the most suitable solvents are selected from our green solvent library (including but not limited to supercritical carbon dioxide, ethanol, water, etc.) to ensure the environmental friendliness of the extraction process.
We provide optimized extraction conditions such as temperature, pressure (for supercritical CO₂), solvent ratio, etc. to ensure efficient and selective transfer of target compounds from the sample to the solvent.
We use a combination of green purification techniques such as crystallization, distillation, and chromatographic separation to further remove impurities and improve the purity of target compounds. We assess the purity of target compounds using spectroscopy and mass spectrometry to ensure that the products meet quality standards.
With superior technological advantages and a strong background in green chemistry, CD BioSciences-GreenChemistry provides clients with high-quality solvent extraction, separation, and purification services. We invite clients to contact us at any time to discuss opportunities for collaboration in the field of solvent extraction, separation, and purification.
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Our products and services are for research use only and cannot be used for any clinical purposes.