Ultrasonic extraction is mainly based on cavitation effect and mechanical vibration. When ultrasonic waves propagate in a liquid, a series of periodic changes in compression and rarefaction will occur, resulting in tiny bubbles in the liquid that rapidly expand and close. This process generates high temperature, high pressure and strong impact force, which can effectively destroy the plant cell wall and release the target components within the cells into the extraction solution.
Rose essential oil polyphenols and total saponins are natural products with high biological activity and have various pharmacological effects such as antioxidant, anti-inflammatory, and anti-tumor. Using ultrasonic extraction technology, it can be extracted from rose petals efficiently and quickly.
Compared with traditional extraction methods, ultrasonic extraction has the following advantages:
1. High extraction efficiency: The cavitation effect and mechanical vibration generated by ultrasonic waves can quickly destroy plant cell walls, allowing the target components to be quickly released into the extraction solution, improving the extraction efficiency.
2. Short extraction time: Ultrasonic extraction can be completed within a few minutes to tens of minutes, greatly shortening the extraction time.
3. Low extraction temperature: Ultrasonic extraction can be carried out at a lower temperature, avoiding damage to target components at high temperatures.
4. Environmental protection and energy saving: Ultrasonic extraction does not require heating or pressurization, saving energy, and there is no need to use harmful solvents during the extraction process, which is environmentally friendly.
As people's demand for natural products continues to increase, the application prospects of ultrasonic extraction technology in the field of plant extraction are very broad. This technology is not only suitable for the extraction of rose essential oil polyphenols and total saponins, but can also be applied to the extraction of active ingredients in other plants. In addition, ultrasonic extraction technology can also be combined with other separation and purification technologies to further improve the purity and activity of the extracted products.
Ultrasonic extraction of rose essential oil polyphenols and total saponins is an efficient and environmentally friendly extraction technology with broad application prospects. With the continuous advancement of science and technology and people's in-depth research on natural products, it is believed that ultrasonic extraction technology will play a greater role in the field of plant extraction.