Difference:
1, different substances: raw flour is mostly used for thickening, starch is polysaccharide, and starch is polysaccharide.
2. Different uses: In Chinese cooking, raw flour is often used as one of the cured meat materials to soften the meat quality, except food. Starch is used to make dextrin, maltose, glucose, alcohol, etc. In industry, this characteristic of starch is used to indirectly heat vegetables.
3. Different ingredients: starch is an important part of food, and it feels a little sweet to chew rice. Raw flour also belongs to starch, and starch is not completely raw flour. Because starch is insoluble in water, it is gelatinized into a colloidal solution when heated to 60℃ with water. Best for cooking.
Function: Because of the gelatinization of starch, starch has a transparent colloidal luster, which can more vividly reflect the color of dishes and seasonings, making the colors of dishes more vivid and beautiful. Starch is a high molecular polymer of glucose, which is hydrolyzed into maltose in disaccharide stage, and glucose will be obtained after complete hydrolysis. Raw flour can make food taste smooth, and raw flour is also one of the raw materials for softening meat.
Extended data:
Precautions:
1, moisture-proof: starch is easy to absorb moisture, swell and even rot and mildew. Therefore, it must be kept dry during storage to prevent moisture. If you encounter high temperature under high humidity, starch may gelatinize. Therefore, the general indoor temperature should be kept below 65438 05℃, the relative humidity should not exceed 70%, and attention should be paid to ventilation.
2, to prevent odor: because of the strong water absorption of starch, while absorbing water, the performance of absorbing odor is also very strong. Therefore, when storing, it should be prevented from being stored with articles with peculiar smell. If it is contaminated by odor, it can be dried to reduce or eliminate odor.
3, prevent insect bites: starch, like all kinds of foods, is easy to cause insect bites or mouse bites. Therefore, in addition to keeping the warehouse clean during preservation, it is also necessary to do a good job of pest control and rodent control.
Baidu encyclopedia-raw flour
Baidu encyclopedia-starch
Baidu encyclopedia-starch