The difference in taste, the difference in water, the difference in daily use, and the difference in main ingredients.

(A) Taste different:

Lye noodles: because of the large amount of sodium carbonate in its composition, it tastes salty and bitter.

Starch: starch tastes like noodles.

(2) Different phenomenon in water:

Alkaline noodles: alkaline noodles will be completely dissolved in water.

Starch: starch does not dissolve in water and will be dispersed in water.

(3) different daily use:

Lye: edible alkali is not a commonly used condiment, it is just a kind of food loosening agent and meat tenderizer, can make the dry raw materials quickly rise, soften the fibers, to remove the sour taste of the dough, the appropriate use of the food can be excellent color, aroma, taste, shape, in order to enhance people's appetites.

Starch: starch can make the water porridge-like, also known as "gravy", can be eaten directly, can also be used for brewing, but also often in and out of the feast of cooking accessories, in cooking with irreplaceable utility.

(D) the main ingredients are different:

Lye: scientific name sodium carbonate, chemical formula na2co3 lye, is edible alkali, the English name is dietary alkali. edible alkali for soda ash (sodium carbonate) (chemical formula Na2CO3) and baking soda (sodium bicarbonate) (chemical formula NaHCO3) mixture, baking soda is made of soda solution or crystallized carbon dioxide absorption of manufactured products. manufactured product after crystallization to absorb carbon dioxide.

Starch: starch is a high polymer of glucose, also known as gravy powder in the catering industry, the general formula is (C6H10O5)n, hydrolyzed to the disaccharide stage of maltose, the chemical formula is (C12H22O11), and completely hydrolyzed to get glucose, the chemical formula is (C6H12O6 ).

Baidu Encyclopedia - Alkaline Noodles

Baidu Encyclopedia - Starch