超声波辅助碱法制备豆渣大豆低聚糖的研究

Ultrasound-assisted Alkali Extraction of Soy Oligosaccharides from Soybean Dregs

研究豆渣制备大豆低聚木糖的工艺。采用超声波辅助碱法制备豆渣大豆低聚糖,并对大豆低聚糖的制备工艺进行优化。结果表明,最佳工艺条件为:超声波功率250W,温度50℃,时间50min,碱浓度2.0mol/L,料液比为1∶20(g/mL)。在该条件下豆渣大豆低聚糖提取率为10.19%。

Ultrasound-assisted alkali extraction of soy oligosaccharides from soybean dregs was studied. Result indicated that the optimal parameters were as follows： ultrasonic power 250 W, ultrasonic temperature 50 ℃, ultrasonic time 50 min, the sodium hydroxide amount of 2.0 tool/L, solid to liquid ratio of 1 ： 20 （g/mL）. Under the optimized conditions, the yield of soy oligosaccharides was about 10.19 %.