关键词: 泥鳅, 多糖, 超声波, 提取, loach, polysaccharides, ultrasound, extract

Abstract: Using loach as a raw material,adopting ultrasound-assisted extraction technique of polysaccharide loach, and using sulfuric acid - phenol assay of polysaccharide, the orthogonal experimental were designed through single factor to explore the effect of solid-liquid ratio, ultrasonic time and ultrasonic power on loach polysaccharide extraction rate. Through process optimization, the optimal technique by ultrasonic extraction of loach polysaccharide was obtained that material liquid ratio 1∶20, ultrasonic time 20 min, ultrasonic power 100 w. The extraction rate of loach polysaccharide was the highest under the optimum conditions, reaching 2.79%.