{"id":11972,"date":"2022-03-16T10:58:17","date_gmt":"2022-03-16T10:58:17","guid":{"rendered":"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk"},"modified":"2022-03-16T11:22:36","modified_gmt":"2022-03-16T11:22:36","slug":"a-simple-way-to-test-cow-milk","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk","title":{"rendered":"A simple way to test cow milk"},"content":{"rendered":"

Africa-Press – Mauritius. <\/strong><\/span>MOEKETSI Ntakatsane, a National University of Lesotho (NUL) science graduate, has an interesting method that can test if a cow\u2019s milk has antibiotics in just nine to 15 hours.<\/p>\n

Antibiotics are substances that fight bacteria in sick cows. But they may not be good for your health if found in the cow\u2019s milk you eat. \u201cThis method is very simple so farmers can use it to test their milk directly on their farms,\u201d Ntakatsane said.<\/p>\n

His new method is so good that it has just been published in the prestigious Journal of Food Measurement and Characterization supported by the world renowned Springer Publishing.<\/p>\n

Ntakatsane is best known for the work he has done to support the development of two dairy brands which are changing the landscape of Lesotho\u2019s dairy industry: Sebabatso and, recently, Molleloa yoghurts.<\/p>\n

His passion and commitment to the development of dairy products in Lesotho is unmatched. Now he has come up with this interesting idea. What is it all about?<\/p>\n

We all love milk and milk products, don\u2019t we? Who on earth haven\u2019t found themselves delighting in chocolates, indulging in yoghurts, swallowing papa (hardened maize porridge) with mafi (sour milk) and enjoying a cup of fresh milk? But here is the catch.<\/p>\n

Just like us, cows do get sick. \u201cDairy cows often catch a disease called mastitis, one of the most common diseases in the dairy industry,\u201d Ntakatsane said.<\/p>\n

Farmers are advised to practise good hygiene to avoid this disease but when it does happen, the cows are given antibiotics. Antibiotics are all kinds of drugs that fight bacteria which cause disease.<\/p>\n

So, farmers will need to have a quick and cheap way to know if the milk still has some remains of the antibiotics after being given some. This is to avoid getting the antibiotics into humans through milk.<\/p>\n

Here are the reasons: [1] some antibiotics can cause allergies in some people, [2] bacteria affecting humans might develop resistance to the antibiotics, making it harder for humans to be treated with antibiotics later and [3] since dairy products such as yogurt are developed using bacteria, the antibiotics in milk may actually kill that helpful bacteria, making it harder for such milk to turn into yogurts or similar stuff.<\/p>\n

The challenge is that present methods to check the presence of antibiotics in milk are still a bit complex and expensive for an average farmer. So, Ntakatsane came up with a means to a quick and simple test which he calls screening.<\/p>\n

It is screening in the sense that it shows whether the milk does have the antibiotics or not, without necessarily saying how much of those antibiotics are there in the milk.<\/p>\n

He said his method just shows if \u201cthe content of antibiotics is beyond a certain measure, to be of concern. \u201d So how does it work? To better understand it, we have to remember that the job of antibiotics is to kill bacteria or prevent it from growing.<\/p>\n

So the best way to find if milk has antibiotics is to bring that milk against the bacteria. Sounds simple? It is not as easy as it sounds. First you have to find the right environment over which the bacteria will grow.<\/p>\n

That environment is called a growth medium. The common medium used is known as agar gel plus necessary nutrients. Bacteria is put on the gel so that it can grow\u2014scientists call that process the culturing of bacteria.<\/p>\n

The problem with the agar is that it is processed in high temperatures and that makes it less suitable for the simple use by farmers. So Ntakatsane explained: \u201cWe choose a different growth medium\u201d.<\/p>\n

He reported this work in the academic journal, \u201ca cold-water soluble compound gelling agent composed of guar gum (GG) and konjac glucomannan (KG) was prepared and its properties were optimized for enhancing performance of the test plate.<\/p>\n

\u201d There we go! He meant that another growth medium, easy to use under normal temperatures, was created.<\/p>\n

The medium was then improved to ensure that it gave the best results possible in terms of allowing the bacteria to grow on it. Like all good things, it took years to nail it.<\/p>\n

Once the bacteria are on the medium, it is time to bring the milk and put it on a particular spot on the medium. If the milk still contains the antibiotics, it will prevent the bacteria to grow around that particular spot where the milk is.<\/p>\n

Another way is to put the milk on a paper disk and put the disk on the medium, with the same effect. How will we know? A colouring material is added to the medium to determine the growth of bacteria.<\/p>\n

If there is colour, bacteria are growing. If the milk contains antibiotics \u201cthere will be a colourless circle around the spot where the milk containing antibiotics was dropped or where the disk was placed. If that spot has a diameter of more than two mm, then we know the presence of antibiotics in the milk is more than allowed,\u201d he said.<\/p>\n

For More News And Analysis About Mauritius<\/a> Follow Africa-Press<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Africa-Press – Mauritius. MOEKETSI Ntakatsane, a National University of Lesotho (NUL) science graduate, has an interesting method that can test if a cow\u2019s milk has antibiotics in just nine to 15 hours. Antibiotics are substances that fight bacteria in sick cows. But they may not be good for your health if found in the cow\u2019s […]<\/p>\n","protected":false},"author":84,"featured_media":11971,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,8,9,16],"tags":[233,245,1846,241],"class_list":["post-11972","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-all-news","category-homepage-english","category-miscellaneous","category-twitter","tag-africa-press","tag-africa-press-mauritius","tag-cow","tag-mauritius"],"yoast_head":"\nA simple way to test cow milk - Mauritius<\/title>\n<meta name=\"description\" content=\"MOEKETSI Ntakatsane, a National University of Lesotho (NUL) science graduate, has an interesting method that can test if ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"A simple way to test cow milk\" \/>\n<meta property=\"og:description\" content=\"MOEKETSI Ntakatsane, a National University of Lesotho (NUL) science graduate, has an interesting method that can test if ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\" \/>\n<meta property=\"og:site_name\" content=\"Mauritius\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/AfricaPressTunisiaa\" \/>\n<meta property=\"article:published_time\" content=\"2022-03-16T10:58:17+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-03-16T11:22:36+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/mauritius\/sites\/61\/2022\/03\/img-6231c85c38ba2.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"900\" \/>\n\t<meta property=\"og:image:height\" content=\"507\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditoren\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditoren\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\"},\"author\":{\"name\":\"cfeditoren\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/#\/schema\/person\/068c7ab4e9634ae78ec5d54ec46598bb\"},\"headline\":\"A simple way to test cow milk\",\"datePublished\":\"2022-03-16T10:58:17+00:00\",\"dateModified\":\"2022-03-16T11:22:36+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\"},\"wordCount\":861,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/mauritius\/sites\/61\/2022\/03\/img-6231c85c38ba2.jpg\",\"keywords\":[\"Africa Press\",\"Africa Press-Mauritius\",\"cow\",\"Mauritius\"],\"articleSection\":[\"all news\",\"homepage-english\",\"miscellaneous\",\"twitter\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\",\"url\":\"https:\/\/www.africa-press.net\/mauritius\/all-news\/a-simple-way-to-test-cow-milk\",\"name\":\"A simple way to test cow milk - 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