{"id":26470,"date":"2024-09-10T10:39:26","date_gmt":"2024-09-10T05:09:26","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=26470"},"modified":"2025-04-08T02:22:56","modified_gmt":"2025-04-07T20:52:56","slug":"yellow-food-dye","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/yellow-food-dye\/","title":{"rendered":"Yellow Food Dye"},"content":{"rendered":"<h2><strong>About Yellow Food Dye:<\/strong><\/h2>\n<ul>\n<li>It is also known as\u00a0<strong>tartrazine\u00a0<\/strong>and is a\u00a0<strong>synthetic food colorant<\/strong>\u00a0classified as an azo dye.<\/li>\n<li>It is lemon yellow in color and\u00a0<strong>water soluble.<\/strong><\/li>\n<li>It is used in many dairy products, beverages, desserts and confectioneries etc.<\/li>\n<\/ul>\n<p><strong>Highlight of the study<\/strong><\/p>\n<ul>\n<li>This dye absorbs blue light strongly, which yields its characteristic\u00a0<strong>orange-to-red color<\/strong>\u00a0when dissolved in water.<\/li>\n<li>This happens because the blue part of the light is absorbed, leaving\u00a0<strong>only the orange-to-red part visible.<\/strong><\/li>\n<li>Normally, biological tissues scatter light due to their diverse composition of proteins, fats, and liquids.<\/li>\n<li>Researchers found that a\u00a0<strong>concentrated tartrazine solution<\/strong>\u00a0can match the\u00a0<strong>refractive indices\u00a0<\/strong>of these components, reducing light scattering and allowing light to pass through. This makes the skin appear transparent.<\/li>\n<li>When applied,\u00a0<strong>tartrazine absorbs certain wavelengths<\/strong>\u00a0of light, especially red light, changing how light interacts with the tissue.<\/li>\n<li>This effect enabled the researchers to see blood vessels, internal organs, and muscle contractions in real-time.<\/li>\n<\/ul>\n<p><strong>Potential Applications<\/strong><\/p>\n<p>This technique could simplify blood draws, improve laser tattoo removal, and aid in\u00a0<strong>early cancer detection.<\/strong><\/p>\n<hr \/>\n<h3>Q1: What is the Refractive index?<\/h3>\n<p>It is a measure of the bending of a ray of light when passing from one medium into another.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/economictimes.indiatimes.com\/news\/science\/scientists-use-common-yellow-food-dye-tartrazine-to-make-skin-transparent-see-internal-organs-inside-body\/articleshow\/113123317.cms?from=mdr\" target=\"_blank\" rel=\"nofollow noopener\">Scientists use common yellow food dye tartrazine to make skin transparent, see internal organs inside body<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Yellow Food Dye is also known as tartrazine and is a synthetic food colorant classified as an azo dye.<\/p>\n","protected":false},"author":5,"featured_media":26471,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-26470","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/26470","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=26470"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/26470\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/26471"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=26470"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=26470"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=26470"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}