Yes, vermicelli is actually the starch we usually talk about, just called differently.

According to the definition, starch is a kind of crop extract, because of the different raw materials used, starch is divided into: corn starch, tapioca starch, potato starch, sweet potato starch, etc., is a kind of high purity material.

And flour, its main ingredient is also starch, but because of the different uses, you can add a small amount of other substances, such as adding modified starch and so on.

In the northern part of China, vermicelli generally refers to sweet potato starch.

Extended information:

Starch is a polymerization of glucose molecules, and it is the most prevalent form of carbohydrate storage in cells.?

Starch, also known as gravy powder in the restaurant industry, has the general formula (C6H10O5)n, which is hydrolyzed to the disaccharide stage as maltose, with the chemical formula C12H22O11, and completely hydrolyzed to give the monosaccharide (glucose), with the chemical formula C6H12O6?

There are two types of starch, straight-chain starch and branched-chain starch.

The former is a spiral structure without branching; the latter is made of 24~30 glucose residues connected by α-1,4-glycosidic bonds, and α-1,6-glycosidic bonds at the branched chain. Straight-chain starch appears blue when exposed to iodine, and branched-chain starch appears purplish red when exposed to iodine.

This is not a chemical reaction between starch and iodine (reaction), resulting in interaction (interaction), but the central cavity of the starch helix can accommodate iodine molecules, through the van der Waals force, the two form a blue-black complex.

Experimentally, iodine molecules alone cannot make starch blue, but actually make starch blue is the iodine molecular ion (I3). Starch is a nutrient stored in the plant body, in seeds and tubers, and is high in all types of plants.

Starch can be viewed as a homopolymer of glucose. In addition to food, starch is used industrially to make dextrin, maltose, glucose, alcohol, etc. It is also used to make printing paste, sizing of textiles, gluing of paper, and pressing of pharmaceutical tablets. It can be extracted from starch-containing substances such as corn, sweet potato, wild acorn and kudzu.