Sweet potato powder, Xiushui specialty

Sweet potato is rich in nutritional value, widely used in our country acreage is large, but the high water content of fresh sweet potatoes, larger storage and preservation difficult time and consume more nutrients during storage, serious disease losses. Therefore, in order to extend the sweet potato is served, it must be dried. Experiments focused on the development of a sweet potato flour to make storage easy, and extend the storage time, the sweet potato flour can be used for the ingredients of bread, rolls, breads, pastries, fillings and the like. (A) Procedure ingredients: choice of three colors of sweet potato flesh: purple flesh, orange flesh, yellow flesh (ii) the process will be three kinds of raw sweet potato, peeled cleaning → → → cut sheet Ding protecting color → drying → smash ( measuring moisture) → Packing ① Cleaning: Always clean, related to the quality of the final product. ② peeled: the sweet potato skin with a bamboo knife to the net, especially potato skin recessed portion. ③ sliced ??or silk: the sweet potato peeled vegetable slicer cut to specifications chips or potato Ding. ④ color protection: with salt formulated as a 0.5% solution, chopped sweet potato crisps or potato small bubble where a few minutes. ⑤ Drying: The drying drying equipment to ensure product hygiene, and attention to the temperature, generally between 45 ~ 50 ℃, drying time can be potato chips, potato wire size is determined to make a final moisture below 6%. ⑥ crushing, packing: dried sweet potato, with a hammer mill grinding, make potato powder fineness of about 80 mesh. (C) the results and analysis of three dried sweet potato powder in color with purple and orange sweet potato flour was excellent, yellow sweet dark color. So choose purple and orange sweet potato varieties as raw materials. Sweet potato powder prepared by the method described above can be used as food ingredients in many foods. Such as sweet potato pie, sweet potato cake, sweet rolls, sweet bread, production methods, steaming, boiling, frying can be.