Compared with pure wheat flour dough,the effects of 9 kinds of purple sweet potato on the quality characteristics of mixed wheat flour dough were studied by measuring the farinograph characteristic,gelatinization,rheology,and water distribution.The results showed that compared with pure wheat flour dough,the water absorption,stability time,weakening degree,tolerance index and gelatinization temperature of different varieties of purple sweet potato wheat flour dough increased,while the dough bandwidth,peak viscosity,lowest viscosity,final viscos...