Flax lignans has rich nutritional value and wide use. Mixed Tocopherols Oil has a large planting area in China, but the fresh sweet potato has a high water content, and it is difficult to keep fresh for a long time. In addition, it consumes a lot of nutrients during the storage process, causing serious disease loss. Gardenia Yellow, in order to prolong the supply time of sweet potato, it must be dried. In the experiment, we focus on the development of a kind of sweet potato whole powder, which can be used to make ingredients such as steamed bread, flower roll, Capsicum Oleoresin, pastry and stuffing.

Raw material: choose three kinds of sweet potato with flesh color: Purple flesh, orange flesh and yellow flesh.