Study on technology of extracting protein from sunflower seed meal by ultrasonic assisted alkali solution and acid precipitation
Using sunflower seed meal as raw material,the effects of pH value,extraction time,solid-liquid ratio and extraction temperature on ultrasonic assisted protein extraction were investigated by single factor test and orthogonal test,so as to optimize the extraction process and improve the extraction rate of protein.The results showed that the influence of each single factor on ultrasonic assisted protein extraction was the ratio of solid to liq-uid,pH value,extraction temperature and extraction time in descending order.The optimal process conditions were pH value of 8.5,extraction time of 85 min,solid-liquid ratio of 1∶25(g/mL),extraction temperature of 50 ℃,and the extraction rate of protein was 72.58％.This study provided technical reference for the efficient ex-traction of protein from sunflower seed meal.
ultrasonicalkali solution and acid precipitationsunflower seed mealprotein
万方数据
维普
