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. 2023 Jul 3;16(13):4793. doi: 10.3390/ma16134793

Table 6.

List of approved/permitted preservatives with a code assigned by the International Numbering System (INS) and E numbers (EU).

INS Number E Number Preservative
200 E200 Sorbic acid
201 Sodium sorbate
202 E202 Potassium sorbate
203 Calcium sorbate
209 Heptyl para-hydroxybenzoate
210 E210 Benzoic acid
211 E211 Sodium benzoate
212 E212 Potassium benzoate
213 E213 Calcium benzoate
214 E214 Ethyl p-hydroxybenzoate
215 E215 Sodium ethyl p-hydroxybenzoate
216 Propyl p-hydroxybenzoate
217 Sodium propyl p-hydroxybenzoate
218 E218 Methyl p-hydroxybenzoate
219 E219 Sodium methyl p-hydroxybenzoate
220 E220 Sulphur dioxide
221 E221 Sodium sulphite
222 E222 Sodium hydrogen sulphite
223 E223 Sodium metabisulphite
224 E224 Potassium metabisulphite
225 Potassium sulphite
226 E226 Calcium sulphite
227 E227 Calcium hydrogen sulphite
228 E228 Potassium hydrogen sulphite
230 Diphenyl
231 Ortho-phenylphenol
232 Sodium ortho-phenylphenol
233 Thiabendazole
234 E234 Nisin
235 E235 Natamycin (Pimaricin)
236 Formic acid
237 Sodium formate
238 Calcium formate
E239 Hexamethylene tetramine
240 Formaldehyde
241 Gum guaiacum
E242 Dimethyl dicarbonate
E243 Ethyl lauryl arginate
E249 Potassium nitrite
E250 Sodium nitrite
E251 Sodium nitrate
E252 Potassium nitrate
260 Acetic acid, glacial
261 Potassium acetates
262 Sodium acetates
263 Calcium acetates
264 Ammonium acetate
265 Dehydroacetic acid (DHA)
266 Sodium dehydroacetate
270 Lactic acid
280 E280 Propionic acid
281 E281 Sodium propionate
282 E282 Calcium propionate
283 E283 Potassium propionate
E284 Boric acid
E285 Sodium tetraborate; borax
290 Carbon dioxide
E1105 Lysozyme
344 Lecithin citrate
384 Isopropyl citrates
386 EDTA