First, the materials are different.
Starch can be made from corn, sweet potato, wild acorn, kudzu root, etc. Sweet potato powder is made from sweet potato.
Second, the production process is different.
Starch is extracted from substances containing starch, and the production process is more complicated and refined than sweet potato powder. Sweet potato powder is made by mashing raw sweet potato, filtering the residue and drying the filtered juice containing sweet potato powder.
Third, the usage is different.
1, starch can be used as thickening agent for vegetables. Besides being used in food, it can also be used in chemical experiments, because starch is polymerized from glucose molecules and is the most common storage form of carbohydrates in cells.
2. Sweet potato flour is widely used to make Chinese dim sum. Sweet potato powder can also be used for cooking. After the marinated ribs are dipped in coarse sweet potato powder and fried, the sweet potato powder can present a crisp taste, and the granular skin can also bring visual effects.
Extended data:
Types of starch
1, mung bean starch
Mung bean starch is the best starch and seldom used. It is made by soaking mung beans in water, grinding and precipitating. Features: enough viscosity, small water absorption, white and shiny color.
2. Potato starch
At present, potato starch is widely used in families. It is made by grinding potatoes, washing them and precipitating them. The characteristics are: enough viscosity, fine texture, white color, luster better than mung bean starch, but poor water absorption.
3. Wheat starch
Wheat starch is precipitated or made of flour after gluten is washed out of dough. The characteristics are: white color, but poor luster, not as good as potato powder, easy to precipitate after thickening.
4. Sweet potato starch
Sweet potato starch is characterized by strong water absorption, but poor viscosity, dull color and dark red with black. It is made of fresh potatoes through grinding, cleaning and precipitation. In addition, there are corn starch, water chestnut starch, lotus root starch, water chestnut starch and so on.
5. Cassava starch
Cassava starch is a powder obtained by extracting cassava starch, dewatering and drying. Cassava starch can be divided into raw starch and various modified starches, which are widely used in food industry and non-food industry. Modified starch can be customized according to the specific requirements put forward by users to adapt to special purposes.
References:
Baidu encyclopedia-raw flour
References:
Baidu encyclopedia-sweet potato powder