Ảnh hưởng của sóng siêu âm đến hàm lượng phenolic của dịch trích rau ngổ (Enhydra fluctuans L.)

Abstract

The study evaluates the effects of ultrasound frequency, treatment time, and solvents (water, 45% ethanol, 96% ethanol) on the phenolic content of Enhydra fluctuans L. Results showed that UAE at a frequency of 58 kHz, a treatment time of 20 minutes, and 45% ethanol as a solvent achieved the highest phenolic content (18.23 ± 2.28 mg GAE/g). The study suggests UAE combined with 45% ethanol is an effective method for extracting phenolics from Enhydra fluctuans L.