Special low-protein potato full flour noodle for patients with diabetic nephropathy and preparation method thereof

The present invention relates to a special low-protein potato full flour noodle for patients with diabetic nephropathy, and a preparation method thereof, belonging to the field of agricultural product processing. The noodle is composed of the following raw materials in parts by weight 10-30 parts of potato full flour, 10-20 parts of wheat flour, 5-10 parts of pre-gelatinized starch, 30-40 parts of potato starch, 20-30 parts of wheat starch, 20-30 parts of corn stigma, and 0.5-0.8 part of traditional Chinese medicine extract. The prepared noodle is high in forming rate, is low in cooking loss rate, is low in broken bar number, is good in noodle quality, and is good in palatability; the prepared noodle is suitable for a long-term consumption for patients with diabetic nephropathy, and is low in glycemic index. The low-protein potato full flour noodle is prepared by using a single screw extrusion technology, the technology process can be shortened, the time is saved, and the prepared noodle is good in quality.