Study on ultrasonic extraction process of arecoline from betel nut
To use ultrasonic-assisted extraction process to extract arecoline from betel nut.The content of the arecoline which was used as evaluating criteria,was determined by HPLC.Based on the results of single factor experiments,the optimum extracting process of arecoline from betel nut was optimized by L9(34) orthogonal test.The optimized extraction process was as follows:the concentration of ethanol was 85%;the ratio of solid to liquid was 1:8;the extraction temperature was 65 ℃;the pH value of alkalization was 8.The extraction rate of arecoline was 0.1987%.The purity of arecoline extraction was 98.1%(W).