【摘要】 以玉米淀粉为原料,用α-淀粉酶对合成的辛烯基琥珀酸酐淀粉水解,研究酶法制备辛烯基琥珀酸酐水解淀粉的工艺条件,并通过响应面分析实验对工艺进行优化。确定合成的最佳工艺参数为:酶用量115U/g,水解温度95℃,水解时间49min,所得产品辛烯基琥珀酸酐水解淀粉的DE值为8.01。通过响应面方差分析可以得出,三个因素对辛烯基琥珀酸酐水解淀粉的DE值的影响显著,且加酶量与水解温度、水解温度与水解时间之间的交互影响作用也显著。更多还原

【Abstract】 The synthesis process condition of enzymatic octenyl succinic anhydride(OSA)corn starch was researched.Through hydrolysis response surface analysis,the results showed that the optimum condition of synthesizing enzymatic OSA corn starch(DE=8.01)was enzyme dosage 115U/g,hydrolysis temperature 95℃,hydrolysis time 49 minutes;enzyme dosage and hydrolysis temperature,hydrolysis temperature and hydrolysis time interacted significantly;DE value increased significantly higher in high temperature than in low temperature.更多还原