The combination of rosemary and solvent extraction technology provides an efficient and environmentally friendly method for the extraction and purification of rosemary's active ingredients. Solvent extraction technology can achieve rapid separation and purification of a variety of biologically active substances in rosemary, providing strong technical support for the development and utilization of rosemary.
Extraction process: The active ingredients of rosemary can be extracted from rosemary leaves by solvent extraction. After the dried rosemary leaves are crushed, they are soaked in a suitable solvent (such as ethanol) and then extracted by a centrifugal extractor. Under the action of centrifugal force, the solvent and the active ingredients in rosemary are fully mixed and mass transferred, thereby achieving the extraction of the active ingredients. The solvent extractor is equipped with a drum and a shell. The mixed liquid rotates at a high speed in the drum, and the light and heavy phase solutions are quickly separated by the action of centrifugal force. The heavy phase liquid (extracted liquid rich in active ingredients) and the light phase liquid (extractant) are discharged through different outlets, respectively, thereby achieving the preliminary separation of the active ingredients.
Purification process: The extracted extract may also contain some impurities and incompletely separated solvents. In order to further improve the purity of the active ingredients, it can be processed by multi-stage centrifugal extraction or combined with other purification techniques (such as distillation, filtration, etc.). In the multi-stage centrifugal extraction process, each stage can further separate and purify the extract. The purification effect can be optimized by adjusting the centrifuge speed, temperature, solvent ratio and other parameters.
Advantages and applications: Solvent extraction technology can quickly and efficiently extract and purify the active ingredients in rosemary, while reducing solvent consumption and waste generation. The extracted rosemary extract can be widely used in food, medicine, cosmetics and other fields, and has broad market prospects and application value.