Preparation method of Chinese yam nutrition powder

Abstract

The invention discloses a preparation method of Chinese yam nutrition powder. The preparation method comprises the following steps: (1) finely selecting Chinese yams which do not mildew and rot and do not go bad; (2) washing mud away from the surfaces of the Chinese yams; (3) peeling off until the Chinese yams have no black points or mildew spots and slicing to obtain slices with the thickness of 3mm-5mm; (4) drying with microwaves at 100-110 DEG C for 5-8 minutes; (5) crushing and sieving by using a 120-mesh sieve; (6) slowly adding water in a material blending process until materials are uniformly mixed; (7) puffing, wherein front-section temperature is 80-100 DEG C, the middle-section temperature is 100-110 DEG C and the back-section temperature is 100-90 DEG C; cutting discharged puffed materials into 8mm-10mm grains; (8) treating by using microwaves and removing moisture at 80-85 DEG C for 10-12 minutes till the water content is lower than 5%; (9) carrying out superfine grinding till the fineness is more than 200 meshes; (10) accurately weighing various auxiliary materials according to a material proportioning table; (11) mixing for 10-15 minutes until the materials are completely and uniformly mixed; (12) conveying the materials into a hot air dying box and keeping at 70 DEG C; carrying out sterilization treatment for 25 minutes; and (13) carrying out aseptic packaging.

Description

technical field [0001] The invention relates to a formula and production process of Chinese yam nutritional powder, especially maintaining the special functionality of Chinese yam, and compared with other brewing solid beverage processes, it can effectively save energy and reduce emissions compared with wet production processes , Compared with the dry process, the preparation method of the Chinese yam nutrition powder that can improve the instant property of the product. Background technique [0002] At present, the raw materials for the production of brewed solid beverages are generally protein raw materials, such as soybeans, peanuts, almonds, etc. There is no mature formula and process for the nutritional powder with Chinese yam as the main raw material. One of the original production processes adopts wet production, that is, the materials are dried, peeled, washed and soaked, then added with water to refine the pulp, and then spray-dried after batching and homogenizatio...

AI Technical Summary

Problems solved by technology

One of the original production processes adopts wet production, that is, the materials are dried, peeled, washed and soaked, then added with water to grind, and then spray-dried after batching and homogenization. The products produced by this process are characterized by good instant solubility, but in the production process A large amount of waste water is produced in the process, and a large amount of steam and electricity are consumed during spray drying

There are also products produced by dry process, which are mainly produced by superfine pulverization after the material is heated, matured and dried, but the product has poor instant solubility