Abstract: This article studied on extraction technology condition of corn skin dietary fiber adopting the orthogonal design method,and defines optimum technology condition by means of the alkali treatment,bleaching treatment,and the acid treatment. The result indicated this edible fiber. By this method,the end product is the pale yellow color,the starch content ≤0.80%,each gram textile fiber increases the quantity of heat which add it into food ≤1.925kJ,possess the edible security,the multi- fibers,the low thermal characteristic

Key words:  , corn skin； dietary fiber； technology condition；