以玉米淀粉为原料,研究了玉米多孔淀粉制备过程中各种因素对产物成孔效果的影响,探讨了酶解成孔的机理,并对制备工艺进行了初步优化.在糖化酶和耐高温α-淀粉酶混合成的复合酶作用下,玉米淀粉水解制备玉米多孔淀粉的最佳工艺为:加酶量为按照理论水解55%淀粉的30倍加入量,糖化酶与耐高温α-淀粉酶的配比7∶1,反应体系pH值5.6,酶解温度60℃,淀粉浓度60%,反应时间20h.反应后玉米淀粉的吸油率由16.15%提高到了47.59%.This paper aims to have a discussion about the effect of the different conditions on the porosity of corn porous starch,and the possible mechanism.Optimal corn porous starch processing conditions are determined as follows: complex enzyme that could theoretically hydrolyze 30 times of 55% of the added raw starch;ratio of α-1,4-glucanglucohydrolase to α-amylase 7:1;pH 5.6;temperature 60℃;starch solid concentratio n(w/v) 60%;reation time 20h.The result shows that after the reaction the oil adsorption ratio of corn starch was increased from 16.15% to 47.59%
