Carbon dioxide (E290) – what is it?
Carbon dioxide, also designated as E290, is a colorless, odorless gas that occurs naturally in the Earth’s atmosphere. In the context of food, carbon dioxide is also used as a food additive.
Carbon dioxide can be produced artificially by various industrial processes, but its natural source is the respiration process of living organisms, including humans and animals, and fermentation processes.
Properties of carbon dioxide (E290)
Carbon dioxide is a gas that is stable under normal pressure and temperature conditions. It is soluble in water, forming carbonic acid, which makes it acidic in polar solvents.
Uses of carbon dioxide (E290)
Carbon dioxide is widely used in the food industry. It is often used as a preservative, as its antibacterial properties can help extend the shelf life of food products. In addition, it is also used to aerate carbonated beverages, such as sodas and mineral waters, to give them the right texture and taste.
Where to buy carbon dioxide (E290)?
Carbon dioxide (E290) is available in grocery stores, especially in sections offering preservatives and food additives. It can also be found in online stores specializing in raw foodstuffs.
Carbon dioxide (E290) and its functions in foods
As a food additive, carbon dioxide (E290) plays a key role in maintaining the freshness and safety of many food products. Its preservative properties help reduce microbial growth, which contributes to extending the shelf life of various foods. In addition, the addition of carbon dioxide can affect the sensory properties of products, such as taste and texture, especially in the case of carbonated beverages, where it is responsible for giving them their characteristic bubbly feel.
