Difference:
1, different substances: raw flour is mostly used for thickening, starch is a polysaccharide, and starch is a 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 for food. Starch is used to make dextrin, maltose, glucose, alcohol, etc. In industry, starch is used to indirectly heat vegetables by using this characteristic of starch.
3. Different components: Starch is an important part of food, and it feels a little sweet when chewing rice, etc. 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. It is most suitable for cooking.
Function: because of the gelatinization of starch, the starch has a transparent colloidal luster, which can reflect the color of dishes and seasonings more vividly and make the color of dishes brighter and more beautiful. Starch is a high polymer of glucose, which is hydrolyzed to maltose in disaccharide stage, and glucose will be obtained after complete hydrolysis. Raw flour can make the taste of food smooth, and raw flour is also one of the cured meat materials that soften the meat quality.
Extended data:
Precautions:
1, moisture-proof: starch is easy to absorb moisture and expand or even rot and mildew. Therefore, it must be kept dry during storage to prevent moisture. If high temperature is encountered under high humidity, starch may gelatinize. Therefore, the general indoor temperature should be kept below 15℃, and 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 moisture, the performance of absorbing odor is also very strong. Therefore, when storing, it should be prevented from being stored with goods with peculiar smell. If it is contaminated with odor, it can be dried to reduce or eliminate the odor.
3, to prevent insect bites: starch, like all kinds of food, is easy to cause insect bites or rat bites. Therefore, in addition to keeping the warehouse clean during preservation, we should do a good job of pest control and rodent control.
Baidu encyclopedia-raw flour
Baidu encyclopedia-starch
Baidu encyclopedia-starch