The invention provides a flour product and a preparation method thereof, the flour product comprises flour,
whole egg liquid and
soybean protein isolate, the total weight of the
whole egg liquid and the
soybean protein isolate accounts for 0.977%-10.9% of the weight of the flour, the weight ratio of the
whole egg liquid to the
soybean protein isolate is (10-30): 2.7, and the total weight of the whole egg liquid and the
soybean protein isolate accounts for 0.977%-10.9% of the weight of the flour. The water-holding capacity of the
soybean protein isolate is 4 g / g-7 g / g. According to the present invention, the total amount of the whole egg liquid and the
soybean protein isolate is regulated, the weight ratio of the whole egg liquid to the soybean
protein isolate and the water-holding capacity of the soybean
protein isolate are respectively in the specific range, such that the prepared flour product has the balanced
nutrition while the low amount of the egg liquid is added so as to provide the rich
nutrition; the color is milky white or creamy yellow, the color is bright, the
surface structure is uniform and smooth, the
biting force is moderate, the tooth sticking is avoided, the
biting force is strong, the elasticity is high, and the taste is smooth.