E224 is a food additive
approved by the European Union (EU) and used as an antimicrobial, antioxidant
food preservative and bleaching agent in food products.
The common name of E224 is potassium metabisulphite.
Other names include:
pyrosulfurous acid, dipotassium salt and potassium
E224 is a potassium salt of sulphurous acid. As with other sulphurous
acid salts, the chemical’s oxidising effect has the disadvantage
of reducing the vitamin content of the food containing it.
Added sulphites (E221 – E228) should
be avoided if an individual is intolerant to natural sulphites. Such
chemicals have been known to irritate
the skin, eyes and respiratory system - but are also believed by some
to alleviate hangover symptoms !
Examples of food/drink products that may include E224:
Wine, frozen vegetables and shellfish, fruit juice, pickles.