Carbon dioxide is a colorless and odorless gas with physical properties at room temperature. Its density is slightly higher than that of air and it can be dissolved in water. Starch is a high molecular polymer of glucose, which is also called starch in catering industry. The stage of hydrolysis to disaccharide is maltose.

Carbon dioxide is a gas, chemically acidic, and reacts with water to produce carbonic acid. Starch that can deteriorate sodium hydroxide and react with magnesium is generally solid, including amylose and amylopectin. Starch is a nutrient stored in plants, seeds and tubers.

Carbon dioxide is reduced to methanol by inorganic catalyst, then methanol is converted to three carbons, six carbons are synthesized, and finally starch is polymerized. The starch synthesis rate of this artificial way is 8.5 times that of corn starch, which is a big step towards the realization of natural design.