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E223

Food additives

Group: E200–E299 (preservatives)
E223 is a food additive approved by the European Union (EU) and used as an antimicrobial, antioxidant synthetic food preservative and bleaching agent in food products.
The common name of E223 is sodium metabisulphite. It is also known as pyrosulphurous acid or disodium salt. As with other sulphurous acid salts, the chemical’s oxidising effect has the disadvantage of reducing the vitamin content of the food containing it.
E223 is a sodium salt of sulphurous acid. Added sulphites (E221 – E228) should be avoided if an individual is intolerant to natural sulphites. This chemical is diificult to metabolise in those with impaired function of the kidneys and is known to illicit asthma attacks in asthmatics.

Beta release v1.7
Under development