Abstract:

With an orthogonal experiment, ultrasonic extraction of com silk flavonoids was optimized, meanwhile mathematic simulation was done, The results showed that, the optimum ultrasonic extraction conditions were:50% ethanol, the ratio of material to liquid 1︰84 (g︰ml), the extracting temperature 75℃ and the extracting time 75 min. In these conditions, the extracting rate of flavonoids was 1.51%. Compared with the tradition water extraction method, the extraction time shortens by 25%, the extraction rate increases by about 20%. Mathematical simulation values based on ultrasonic extraction was consistent with experiment values.