The invention relates to the field of flour production, particularly discloses nutritional flour rich in
wheat germ and high dietary fibers and a preparation method of the nutritional flour, and aims to solve the problems that the
wheat germ dietary fibers are sheared and damaged and are lost along with
bran, the
nutrient content is difficult to reach the standard, the distribution is non-uniform, and the shelf and dough texture are unstable in the conventional flour milling process. The
wheat germ dietary fiber noodles comprise the following components in parts by
mass: 80-94 parts of
wheat flour, 3-12 parts of wheat germ
dietary fiber, 1-6 parts of
kombucha dietary fiber and 12-14.5 parts of water. The preparation method comprises the following steps: cleaning and grading unprocessed grains, preparing a
kombucha dietary
fiber dispersion liquid,
wetting and blending wheat, carrying out temperature-controlled roller
grinding and crushing, sifting and purifying, adding germ
fine powder and correcting the proportion, synergistically adding
calcium salt, metering, blending and homogenizing, and calibrating and stabilizing
moisture. The
kombucha dietary fibers are added through wheat
wetting, temperature-controlled roller milling and germ dietary
fiber re-adding are carried out, so that germ dietary
fiber retention is improved, dough stability is promoted, and the
breakage rate of noodle products is reduced.