Sulfite

<p >Sulfites are used as a food&nbsp;<a href="http://en.wikipedia.org/wiki/Preservative" title="Preservative" >preservative</a>&nbsp;or enhancer. They may come in various forms, such as:<sup id="cite_ref-webmd_0-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Sulfite#cite_note-webmd-0" >[1]</a></sup></p>

<ul >

<li ><a href="http://en.wikipedia.org/wiki/Sulfur_dioxide" title="Sulfur dioxide" >Sulfur dioxide</a>, which is not a sulfite, but a closely related chemical oxide.</li>

<li ><a href="http://en.wikipedia.org/wiki/Potassium_bisulfite" title="Potassium bisulfite" >Potassium bisulfite</a>&nbsp;or&nbsp;<a href="http://en.wikipedia.org/wiki/Potassium_metabisulfite" title="Potassium metabisulfite" >potassium metabisulfite</a></li>

<li ><a href="http://en.wikipedia.org/wiki/Sodium_bisulfite" title="Sodium bisulfite" >Sodium bisulfite</a>,&nbsp;<a href="http://en.wikipedia.org/wiki/Sodium_metabisulfite" title="Sodium metabisulfite" >sodium metabisulfite</a>&nbsp;or&nbsp;<a href="http://en.wikipedia.org/wiki/Sodium_sulfite" title="Sodium sulfite" >sodium sulfite</a></li>

</ul>

<p>&nbsp;

Sulfites are often used as&nbsp;<a href="http://en.wikipedia.org/wiki/Preservative" title="Preservative" >preservatives</a>&nbsp;in&nbsp;<a href="http://en.wikipedia.org/wiki/Dried_fruit" title="Dried fruit" >dried fruits</a>, preserved&nbsp;<a href="http://en.wikipedia.org/wiki/Radish" title="Radish" >radish</a>, and dried&nbsp;<a href="http://en.wikipedia.org/wiki/Potato" title="Potato" >potato</a>&nbsp;products.</p>

<p>

Most&nbsp;<a href="http://en.wikipedia.org/wiki/Beer" title="Beer" >beers</a>&nbsp;no longer contain sulfites. Although&nbsp;<a href="http://en.wikipedia.org/wiki/Shrimp" title="Shrimp" class="mw-redirect" >shrimp</a>&nbsp;are sometimes treated with sulfites on fishing vessels, the chemical may not appear on the label. In 1986, the&nbsp;<a href="http://en.wikipedia.org/wiki/Food_and_Drug_Administration" title="Food and Drug Administration" >Food and Drug Administration</a>&nbsp;in the United States banned the addition of sulfites to all fresh fruit and vegetables that are eaten raw.<sup id="cite_ref-Fortin_ND.Food_Regulation_2009.2C_p.288_6-0" class="reference" ><a href="http://en.wikipedia.org/wiki/Sulfite#cite_note-Fortin_ND.Food_Regulation_2009.2C_p.288-6" >[7]</a></sup>

<sup id="cite_ref-Fortin_ND.Food_Regulation_2009.2C_p.288_6-0" class="reference" >&nbsp;</sup>

<a href="http://en.wikipedia.org/wiki/E_numbers" title="E numbers" class="mw-redirect" >E numbers</a>&nbsp;for sulfites as&nbsp;<a href="http://en.wikipedia.org/wiki/Food_additives" title="Food additives" class="mw-redirect" >food additives</a>&nbsp;are:</p>

<table class="wikitable" ><tbody>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E150b" title="E150b" class="mw-redirect" >E150b</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Caramel_coloring" title="Caramel coloring" class="mw-redirect" >Caustic sulphite caramel</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E150d" title="E150d" class="mw-redirect" >E150d</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Caramel_coloring" title="Caramel coloring" class="mw-redirect" >Sulphite ammonia caramel</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E220" title="E220" >E220</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Sulfur_dioxide" title="Sulfur dioxide" >Sulfur dioxide</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E221" title="E221" class="mw-redirect" >E221</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Sodium_sulphite" title="Sodium sulphite" class="mw-redirect" >Sodium sulphite</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E222" title="E222" class="mw-redirect" >E222</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Sodium_bisulphite" title="Sodium bisulphite" class="mw-redirect" >Sodium bisulphite</a>&nbsp;(sodium hydrogen sulphite)</td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E223" title="E223" class="mw-redirect" >E223</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Sodium_metabisulphite" title="Sodium metabisulphite" class="mw-redirect" >Sodium metabisulphite</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E224" title="E224" class="mw-redirect" >E224</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Potassium_metabisulphite" title="Potassium metabisulphite" class="mw-redirect" >Potassium metabisulphite</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E225" title="E225" class="mw-redirect" >E225</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Potassium_sulphite" title="Potassium sulphite" class="mw-redirect" >Potassium sulphite</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E226" title="E226" class="mw-redirect" >E226</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Calcium_sulphite" title="Calcium sulphite" class="mw-redirect" >Calcium sulphite</a></td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E227" title="E227" class="mw-redirect" >E227</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Calcium_hydrogen_sulphite" title="Calcium hydrogen sulphite" class="mw-redirect" >Calcium hydrogen sulphite</a>&nbsp;(<a href="http://en.wikipedia.org/wiki/Preservative" title="Preservative" >preservative</a>)</td>

</tr>

<tr>

<td ><a href="http://en.wikipedia.org/wiki/E228" title="E228" class="mw-redirect" >E228</a></td>

<td ><a href="http://en.wikipedia.org/wiki/Potassium_hydrogen_sulphite" title="Potassium hydrogen sulphite" class="mw-redirect" >Potassium hydrogen sulphite</a></td>

</tr>

</tbody></table>

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