Objective: To optimize the extraction technology of total flavonoids from Albizia julibrissin flower by combining surfactant with ultrasonic technology.
Methods: Using Box-Behnken central composition design and response surface methodology, the effects of surfactant concentration, liquid-solid ratio and ultrasound time on the yield of total flavonoids were studied based on the extraction rate to determine the optimum extraction conditions of total flavonoids.
Results: Optimum conditions for extraction of Albizia julibrissin flower were as follows: mass percentage of 2. 5% SDS,15 times of 60% ethanol,ultrasonic time of 31 min. Under these conditions,the extraction rate of total flavonoids from Albizia julibrissin flower was 0. 853%. Using this technology, the extraction yield increased by 93. 0% as compared with that using ultrasonic technology alone.
Conclusion: The optimum extraction technology can be used for extraction of total flavonoids from Albizia julibrissin flower for its simplicity and responsibility.