Ultrasound-Assisted Extraction (UAE) uses the cavitation effect generated by ultrasound to destroy the cell walls of plants and promote solvent penetration, thereby improving the dissolution efficiency of target ingredients (e.g. phenolic compounds). This ultrasound assisted extraction of phenolic method has the advantages of short time, low temperature, high yield, energy saving and environmental protection, etc. compared to traditional extraction (e.g. Soho extraction, heat reflux).

The ultrasound assisted extraction of phenolic is significantly superior to conventional extraction methods: in almost all studies, the ultrasound assisted extraction of phenolic  was able to obtain higher phenol levels and stronger antioxidant activity in a shorter period of time.
Key influencing factors include: ultrasonic power/amplitude, extraction time, solid-liquid ratio, solvent concentration (especially ethanol ratio), and temperature.
Wide range of raw materials: not limited to main crops, more focus on agricultural / forestry processing by-products (such as nut shell, fruit bark, needle leaves, leaf slag), with high value-added development potential

ultrasound microwave herbal Solvent vacuum concentration system