{"id":17367,"date":"2025-05-03T00:00:29","date_gmt":"2025-05-03T00:00:29","guid":{"rendered":"https:\/\/fitolympia.com\/?p=17367"},"modified":"2025-05-03T16:47:31","modified_gmt":"2025-05-03T16:47:31","slug":"why-does-cutting-onions-make-our-eyes-tear","status":"publish","type":"post","link":"https:\/\/fitolympia.com\/it\/why-does-cutting-onions-make-our-eyes-tear\/","title":{"rendered":"Perch\u00e9 tagliare le cipolle ci fa lacrimare gli occhi?"},"content":{"rendered":"<h3 class=\"wp-block-heading\">Q. Perch\u00e9 tagliare le cipolle ci fa lacrimare gli occhi?<\/h3> <figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"576\" src=\"https:\/\/cdn.fitolympia.com\/file\/olympia-cdn\/wp-content\/uploads\/2022\/12\/o-1024x576.jpg\" alt=\"\" class=\"wp-image-17368\" srcset=\"https:\/\/fitolympia.com\/wp-content\/uploads\/2022\/12\/o-1024x576.jpg 1024w, https:\/\/fitolympia.com\/wp-content\/uploads\/2022\/12\/o-300x169.jpg 300w, https:\/\/fitolympia.com\/wp-content\/uploads\/2022\/12\/o-768x432.jpg 768w, https:\/\/fitolympia.com\/wp-content\/uploads\/2022\/12\/o.jpg 1200w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure> <p><strong>Un. Quando una cipolla viene tagliata, alcuni composti (lacrimatore) vengono rilasciati causando l&#8217;irritazione dei nervi intorno agli occhi (ghiandole lacrimali).<\/strong><\/p> <p>Questi composti sono costituiti da metionina e cistina che fanno parte della famiglia degli aminoacidi. (La proteina \u00e8 costituita da molti di questi aminoacidi raggruppati insieme.)<br\/>When an onion is sliced or diced, the onion&#8217;s cells release these compounds into the air. When this occurs, &#8220;enzyme&#8221; works to alter the amino acids into lachrymator compounds. This form of sulfuric acid irritates the nerves around the eyes making them tear.<\/p> <p>Come possiamo prevenire questa reazione?<\/p> <ol class=\"wp-block-list\"><li>Use a sharp knife to cut the onion to reduce the amount of damage to the onion cells.<\/li><li>Cool the onion in a refrigerator to suppress the scattering of the lachrymator.<\/li><li>Soak the onion in water to dissolve the amino acids. (Cutting the onions in half or quarters before soaking them is even more effective.)<\/li><li>Wear swimming goggles or ski goggles while cutting the onion.<\/li><li>Use a ventilator or fan to blow the allyl sulfide away.<\/li><\/ol> <h4 class=\"wp-block-heading\">Cos&#8217;\u00e8 il lacrimatore?<\/h4> <p>L&#8217;irritazione alle ghiandole lacrimali fa s\u00ec che secerna lacrime continuamente senza essere influenzato dall&#8217;intento e dall&#8217;emozione di piangere. I composti chimici rilasciati dalle cipolle sono solfuro di allile ed esistono anche nell&#8217;aglio e nei cipollotti.<\/p> <h4 class=\"wp-block-heading\">Cos&#8217;\u00e8 l&#8217;amminoacido?<\/h4> <p>Un composto organico contenente un gruppo amminico (-NH2), un gruppo acido carbossilico (-COOH), con oltre 80 gruppi collaterali naturali, di cui oltre 20 composti in grado di formare proteine.<\/p> <h4 class=\"wp-block-heading\">Cos&#8217;\u00e8 l&#8217;enzima?<\/h4> <p>Un alto polimero prodotto da organismi viventi e funzionante come catalizzatori biochimici. Esistono diversi tipi di enzimi con ciascuno di essi che mostra una reazione chimica definita.<\/p> <h4 class=\"wp-block-heading\">Cos&#8217;\u00e8 un catalizzatore?<\/h4> <p>Una sostanza che altera una reazione chimica senza essere influenzata essa stessa.<\/p> ","protected":false},"excerpt":{"rendered":"<p>Q. Perch\u00e9 tagliare le cipolle ci fa lacrimare gli occhi? Un. Quando una cipolla viene tagliata, alcuni composti (lacrimatore) vengono 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