Optimization of ultrasonic extraction process by response surface methodology of polysaccharides from Tussilago farfara L.

摘要

Polysaccharides from Tussilago farfara L.(TFPs) was extracted with the assistance of ultrasonic.Box-Behnken design(BBD) was employed to optimize extraction time; extraction temperature;ultrasonic extraction power and ratio of water to raw material to obtain a high TFPs yield.The optimum extraction conditions were as follows: extraction temperature 65.1°C, ultrasonic power 380.5W, extraction time 28.7 min and ratio of water to raw material 23.6ml/g.The yield of polysaccharide was 2.14% based on the above mentioned conditions.