Metatartaric acid explained

Metatartaric acid is a food additive. Chemically, it is a polymeric lactone of variable composition and different molecular weights obtained through a dehydration reaction by heating tartaric acid.[1]

Uses

As a food additive, it has the E number E353 and is classified as an acidity regulator.[2] It is added to wine to prevent the precipitation of potassium hydrogen tartrate and calcium tartrate.[3]

Notes and References

  1. Web site: Cold Stabilization . Australian Wine Research Institute .
  2. Younes M, Aquilina G, Castle L, Engel KH, Fowler P, Frutos Fernandez MJ, Fürst P, Gürtler R, Gundert-Remy U, Husøy T, Mennes W, Shah R, Waalkens-Berendsen I, Wölfle D, Boon P, Tobback P, Wright M, Rincon AM, Tard A, Moldeus P . 6 . Re-evaluation of metatartaric acid (E 353) as a food additive . EFSA Journal . 18 . 3 . e06031 . March 2020 . 32874249 . 7448071 . 10.2903/j.efsa.2020.6031 .
  3. Web site: 3.3.7 Treatment with Metatartaric Acid . International Code of Oenological Practices .

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