Precautions for sweet potato starch production line

Sweet potato starch production line is favored by consumers, but many manufacturers are not clear about the specific operation of high-quality and durable sweet potato starch production line. The company introduces the precautions for the operation of sweet potato starch production line:

Precaution 1: Purification of fresh potatoes

Usually, the sweet potato starch production line adopts wet washing, that is, fresh potatoes are added to the washing conveyor for water washing. Since the potato pieces after the initial washing may be mixed with a small amount of fine sand, the rotating cage is designed as a grid structure, so that the potato pieces roll, rub and wash in the cage, and small pieces of sand and gravel are discharged from the gap of the rotating cage, thereby achieving the effect of cleaning and removing sand and gravel.

Precaution 2: Fine grinding

The purpose of fine grinding of sweet potato starch production line is to destroy the cells of fresh potatoes and free the starch granules in the cell wall so as to separate them from fibers and proteins. In order to further increase the starch release rate, the sweet potato starch production line needs to be finely ground, and it can be ground not too finely, which can reduce the difficulty of fiber separation.

Note 3: Separation of fiber and protein

Fiber separation adopts screening method, commonly used vibrating flat screen, rotary screen and conical centrifugal screen, pressure curved screen. In order to fully recover free starch, two or more screenings are generally used to make the free starch in the fiber residue reach the specified value on dry basis. Before separating protein, it is necessary to use cyclone desander and other sand removal to purify starch.

Note 4: Storage of powder milk

Due to the short processing period of fresh potatoes, the sweet potato starch production line of the factory usually concentrates the crushing and processing of fresh potatoes, stores the starch milk in multiple storage tanks, seals after starch precipitation, and then slowly dehydrates and dries. And it should be noted that the pH of the powder milk should be adjusted to a neutral range or other preservatives should be added before the sweet potato starch production line is stored.

This is conducive to consumers to better choose sweet potato starch production line equipment.