Optimizing Process Research of Ultrasonic Assisted Extraction in the Using of Extracting Pigment from Orange Peel by the Response Surface Method

In this article, we have studied how the ultrasonic assist ethyl alcohol extract the pigment from orange peel. By adopting the orthogonal experiment and response surface method to investigate the affection of the extraction time, extraction temperature, extraction agent to the crude extraction yield of pigment. It`s result show that under the condition of the extraction temperature is 60 , the optimum conditions of ultrasonic assisted ethanol extract pigment:60% ethanol concentration, one hours of extraction time, Material liquid than 1:15g/mL. Under these conditions, the orange peel pigment crude yield up to 54.97%--the highest.