Study on optimizing conditions for anthocyanins extraction from Camellia ptilophylla chang

In this experiment, optimization for anthocyanins extraction from purple leaves of Camellia ptilophylla chang was investigated using response surface methodology.The optimization strategy used was a three-factor three-level quadratic regression rotary combination design.The importance of three process parameters affecting extraction yield of anthocyanins in the order from highest to lowest was:ultrasonic treatment time, ultrasonic power, liquid-to-solid ratio.Ultrasonic treatment time of 25min, ultrasonic power 158W, liquid-to-solid ratio 1∶33 (g/mL) were found optimum for anthocyanins extraction from Camellia ptilophylla chang.Under the optimum technology, the extraction of anthocyanins was 8.092mg/g.