{"id":28453,"date":"2018-10-24T12:30:00","date_gmt":"2018-10-24T07:00:00","guid":{"rendered":"https:\/\/blog.forumias.com\/?p=28453"},"modified":"2018-10-24T12:30:00","modified_gmt":"2018-10-24T07:00:00","slug":"fish-samples-in-chennai-test-positive-for-formalin","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/fish-samples-in-chennai-test-positive-for-formalin\/","title":{"rendered":"Fish samples in Chennai test positive for formalin"},"content":{"rendered":"<p><a href=\"https:\/\/www.thehindu.com\/news\/national\/tamil-nadu\/fish-samples-in-chennai-test-positive-for-formalin\/article24367321.ece\">Fish samples in Chennai test positive for formalin<\/a><\/p>\n<p><strong><u>News:<\/u><\/strong><\/p>\n<ol>\n<li>Fish species purchased from Chinthadripet and Kasimedu, the two major fish markets in Chennai, have tested positive for formalin.<\/li>\n<\/ol>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-22769 size-full\" src=\"https:\/\/i0.wp.com\/blog.forumias.com\/wp-content\/uploads\/2018\/07\/FISHY.jpg?resize=436%2C346\" alt=\"\" width=\"436\" height=\"346\" srcset=\"https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2018\/07\/FISHY.jpg?w=436&amp;ssl=1 436w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2018\/07\/FISHY.jpg?resize=150%2C119&amp;ssl=1 150w, https:\/\/i0.wp.com\/forumias.com\/blog\/wp-content\/uploads\/2018\/07\/FISHY.jpg?resize=300%2C238&amp;ssl=1 300w\" sizes=\"auto, (max-width: 436px) 100vw, 436px\" \/><\/p>\n<p><strong><u>Important facts:<\/u><\/strong><\/p>\n<p>2. The fish were tested by scientist of the Tamil Nadu Dr J. Jayalaithaa Fisheries University.<\/p>\n<p>3. This is the first time samples of fish in Tamil Nadu have tested positive for formalin.<\/p>\n<p>4. A low-cost formalin detection kit developed by researchers of the state-run university was used to test the samples.<\/p>\n<p>5. The test was conducted for ascertaining if they contained the carcinogen that is used widely as a preservative and disinfectant.<\/p>\n<p>6. 13 samples of fish purchased from the Chinthadripet, Velachery and Neelankarai markets tested positive at the university\u2019s referral laboratory in Madhavaram.<\/p>\n<p>7. While, 10 of the 17 fish samples purchased from Chinthadripet and Kasimedu markets tested positive for the carcinogen, causing alarm.<\/p>\n<p>8. The Food Safety and Standard Authority of India (FSSAI) officials have been undertaking tests at fish markets and harbours across the State to test for formalin.<\/p>\n<p><strong><u>9. Formalin:<\/u><\/strong><\/p>\n<ul>\n<li>Formalin is a cancer-inducing chemical used illegally to preserve fish.<\/li>\n<li>Formalin causes irritation in the eyes, throat, skin and stomach.<\/li>\n<li>In the long run continued exposure causes harm to the kidneys, liver and can even cause cancers.<\/li>\n<\/ul>\n<p><strong><u>10. Procedure followed:<\/u><\/strong><\/p>\n<ul>\n<li>For the test, a two gram piece of meat from the fish was taken and put inside four ml of diluent and shaken so that the formalin will get into it.<\/li>\n<li>Then this diluent was poured into the bottle containing the reagent that turned yellow revealing that it had tested positive.<\/li>\n<li>It is a very sensitive reagent and can detect up to 0.5 milligram per kilo.<\/li>\n<li>Formalin or formaldehyde is sprayed on the fish or injected into the fish or the fish is dipped into the solution. This helps keep the fish fresh for a longer time.<\/li>\n<li>Usually people who buy fish check the gills for freshness, if it is red it denotes freshness, when formalin is used the gills remain red for longer periods.<\/li>\n<li>In some cases, fishermen also apply kumkum to retain redness.<\/li>\n<\/ul>\n<p><strong><u>11. Findings of the test:<\/u><\/strong><\/p>\n<ul>\n<li>Both big and small lizard fish or panna or kezhanga and paarai (<em>Malabar trevally<\/em>) were found to have formalin content of above 20 ppm (parts per million).<\/li>\n<li>Other varieties such as sura, octopus, eri vavvaal, ottu kanava, peikanava and kelithi had formalin of around 5 ppm.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Fish samples in Chennai test positive for formalin News: Fish species purchased from Chinthadripet and Kasimedu, the two major fish markets in Chennai, have tested positive for formalin. Important facts: 2. The fish were tested by scientist of the Tamil Nadu Dr J. Jayalaithaa Fisheries University. 3. This is the first time samples of fish&hellip; <a class=\"more-link\" href=\"https:\/\/forumias.com\/blog\/fish-samples-in-chennai-test-positive-for-formalin\/\">Continue reading <span class=\"screen-reader-text\">Fish samples in Chennai test positive for formalin<\/span><\/a><\/p>\n","protected":false},"author":61,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[555],"tags":[],"class_list":["post-28453","post","type-post","status-publish","format-standard","hentry","category-test-1","entry"],"jetpack_featured_media_url":"","views":{"total":0,"cached_at":"","cached_date":1704886219},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/28453","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/61"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=28453"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/28453\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=28453"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=28453"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=28453"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}