【摘要】 以马铃薯淀粉为原料,采用超声波辅助酶解法进行多孔淀粉的中试生产研究。通过测定多孔淀粉的吸油率和得率,对中试生产条件进行了优化。实验结果表明:最佳中试条件为淀粉浆浓度60%,超声时间30min,超声功率600W;α-淀粉酶与糖化酶质量比为1:2,总酶量为4%,α-淀粉酶酶解温度为55℃,pH6.0,水解8h;糖化酶水解温度为50℃,pH4.0,水解14h。生产的多孔淀粉得率为80.60%,吸油率为71.22%。更多还原

【Abstract】 Using ultrasonic-assisted enzyme hydrolysis method to study the pilot scale experiments condition of porosity starch production with potato starch as raw material.To optimize the experiments condition of porosity starch production by detecting the oil absorption and the yielding rate of porosity starch.The results showed that the optimized pilot scale condition of porosity starch production were:60% strarch brei concentration,ultrasonic time 30 min,ultrasonic power 600 W;The ratio of α-amylase and saccharifying enzyme quality was 1:2,the total enzyme was 4%,the optimum temperature of α-amylase was 55 ℃,pH6.0,hydrolysistime was 8 h;the optimum temperature of saccharifying enzyme was 50 ℃,pH4.0,hydrolysistime was 14 h;The final oil absorption and yielding rate of porosity starch were 71.22% and 80.60% respectively.更多还原