The invention provides a low-
fructan glutinous millet sticky steamed bun food and a preparation method thereof. The low-
fructan glutinous millet sticky steamed bun comprises the following raw materials in parts by
mass: 1000 parts of flour, 500-1000 parts of water and 1-6 parts of a
leavening agent. According to the making method of the sticky steamed bun, on the basis of a single-factor optimization experiment,
fermentation process parameter optimization is carried out in combination with a Box-behnken response surface model, and experimental
verification is carried out, so that the sticky steamed bun is obtained. After optimization, the optimal
fermentation process parameters are as follows: the
fermentation temperature is 35 DEG C, the fermentation time is 14 hours, the inoculum size is 3 parts by
mass, the dough yield is 170, and the
fructan content in the glutinous millet sticky steamed bun is 0.4 mg / g under the conditions, is reduced by 99.2% compared with that of unfermented sour dough, and is far lower than the recommended
acceptable daily intake standard 3mg / g of low fructan food. The low-fructan glutinous millet sticky steamed bun food provided by the invention can provide an effective diet intervention way and a new prevention and treatment means for occurrence and development of diseases of
irritable bowel syndrome patients.