{"id":564757,"date":"2023-03-17T00:09:23","date_gmt":"2023-03-16T21:09:23","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/tiny-ph-sensor-could-be-next-gen-freshness-predictor-for-packaged-food\/"},"modified":"2023-03-17T00:09:23","modified_gmt":"2023-03-16T21:09:23","slug":"tiny-ph-sensor-could-be-next-gen-freshness-predictor-for-packaged-food","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/tiny-ph-sensor-could-be-next-gen-freshness-predictor-for-packaged-food\/","title":{"rendered":"#Tiny pH sensor could be next-gen freshness predictor for packaged food"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a2924ca725fd\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a2924ca725fd\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/tiny-ph-sensor-could-be-next-gen-freshness-predictor-for-packaged-food\/#%E2%80%9CTiny_pH_sensor_could_be_next-gen_freshness_predictor_for_packaged_food%E2%80%9D\" >&#8220;Tiny pH sensor could be next-gen freshness predictor for packaged food&#8221;<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/tiny-ph-sensor-could-be-next-gen-freshness-predictor-for-packaged-food\/#How_it_works\" >How it works<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"%E2%80%9CTiny_pH_sensor_could_be_next-gen_freshness_predictor_for_packaged_food%E2%80%9D\"><\/span>&#8220;Tiny pH sensor could be next-gen freshness predictor for packaged food&#8221;<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<div>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/skeptical-about-the-us-1.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/skeptical-about-the-us-1.jpg\" data-sub-html=\"This flexible, miniature pH sensor can be put on food packaging using existing methods, such as plastic wrapping, to detect food wastage. Credit: SMU\">\n<figure class=\"article-img\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/skeptical-about-the-us-1.jpg\" alt=\"Skeptical about the \u201cuse by\u201d date on your groceries?\" title=\"This flexible, miniature pH sensor can be put on food packaging using existing methods, such as plastic wrapping, to detect food wastage. Credit: SMU\" width=\"800\" height=\"530\"\/><figcaption class=\"text-darken text-low-up text-truncate-js text-truncate mt-3\">\n                This flexible, miniature pH sensor can be put on food packaging using existing methods, such as plastic wr<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>ing, to detect food wastage. Credit: SMU<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>Forget that expiration date on your salmon or yogurt. A graduate student at SMU (Southern Methodist University) has developed a miniature pH sensor that can tell when food has spoiled in real time.<\/p>\n<p>The flexible pH sensor is only 2 millimeters in length and 10 millimeters wide, making it possible to incorporate the sensor into current food packaging methods, such as plastic wrapping. Industries typically use much bulkier meters\u2014roughly 1 inch long by 5 inches tall\u2014to measure pH levels, so they are not suitable to be included in every package of food to monitor its freshness in real time.<\/p>\n<p>&#8220;The pH sensors we developed work like a small wireless radio-frequency identification device\u2014similar to what you find inside your luggage tag after it has been checked at airports or inside your SMU IDs. Every time a food package with our device passes a checkpoint, such as shipping logistics centers, harbors, gates or supermarkets&#8217; entrances, they could get scanned and the data could be sent back to a server tracking their pH levels,&#8221; said Khengdauliu Chawang, Ph.D. student at SMU&#8217;s Lyle School of Engineering and lead creator of the device. &#8220;Such configuration would allow continuous pH monitoring and accurately detect freshness limits along the entire journey\u2014from farms to consumers&#8217; houses.&#8221;<\/p>\n<p>Roughly 1.3 billion metric tons of food produced around the world go uneaten every year, according to the Food and Agriculture Organization of the United Nations. Nearly 40 percent of food\u2014approximately 130 billion meals\u2014is wasted in the United States, according to Feeding America estimates.<\/p>\n<p>Creating the device was personal for Chawang, an Electrical and Computer Engineering graduate student who is originally from Nagaland, a remote region in India where the population relies heavily on agricultural crops.<\/p>\n<p>&#8220;Food waste in Nagaland means undernourished children and extra fieldwork for the elderly to compensate for the loss,&#8221; Chawang said. &#8220;The need to prevent food waste motivated me to think of a device that is not expensive or labor-intensive to develop, is disposable and can detect freshness levels.&#8221;<\/p>\n<p>Not only does food waste contribute to food insecurity and lost profits to food manufacturers, but food wastage is also bad for the environment. Transporting all of that uneaten food in the U.S. puts about the same amount of carbon dioxide emissions into the atmosphere as 42 coal-fired power plants, the U.S. EPA reported in 2021.<\/p>\n<p>The Institute of Electrical and Electronics Engineer&#8217;s (IEEE) Big Ideas competition at the 2022 IEEE Sensors Conference honored Chawang with the Best Women-owned Business Pitch for her invention, which she built with the support of J.-C. Chiao, the Mary and Richard Templeton Centennial Chair and professor in the Lyle School&#8217;s Electrical and Computer Engineering Department.\n<\/p>\n<div class=\"article-gallery lightGallery\">\n<div data-thumb=\"https:\/\/scx1.b-cdn.net\/csz\/news\/tmb\/2023\/skeptical-about-the-us.jpg\" data-src=\"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/skeptical-about-the-us.jpg\" data-sub-html=\"SMU graduate student Khengdauliu Chawang has developed a miniature pH sensor that can tell when food has spoiled in real time. Creating the device was personal for Chawang. Credit: SMU\">\n<figure class=\"article-img text-center\"><img decoding=\"async\" src=\"https:\/\/scx1.b-cdn.net\/csz\/news\/800a\/2023\/skeptical-about-the-us.jpg\" alt=\"Skeptical about the \u201cuse by\u201d date on your groceries?\" title=\"SMU graduate student Khengdauliu Chawang has developed a miniature pH sensor that can tell when food has spoiled in real time. Creating the device was personal for Chawang. Credit: SMU\"\/><figcaption class=\"text-left text-darken text-truncate text-low-up mt-3\">\n                SMU graduate student Khengdauliu Chawang has developed a miniature pH sensor that can tell when food has spoiled in real time. Creating the device was personal for Chawang. Credit: SMU<br \/>\n            <\/figcaption><\/figure>\n<\/div>\n<\/div>\n<p>                                            <!-- Google middle Adsense block --><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_it_works\"><\/span>How it works<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Food freshness level is directly correlated to pH levels, Chawang explained. For example, food with a pH level higher than the normal range indicates spoiled food, as fungi and bacteria thrive in high-pH environments. So sudden pH changes in food storage during production and shipping can indicate possible food spoilage.<\/p>\n<p>The pH level is measured by the concentration of hydrogen ions found in a substance or solution.<\/p>\n<p>Because hydrogen ions are electrically-charged molecules, the electrodes within Chawang&#8217;s pH sensor can detect the electrical charge generated by the concentration of hydrogen ions inside food, converting the level to pH values using what is known as the Nernst equation.<\/p>\n<p>The pH sensor has successfully been tested on food items like fish, fruits, milk and honey, Chawang said. More testing is being done.<\/p>\n<p>The sensor is made with a very small amount of biocompatible materials and use printing technologies on flexible films.<\/p>\n<p>&#8220;The entire process is similar to printing <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/news\/\" data-internallinksmanager029f6b8e52c=\"2\" title=\"News\" target=\"_blank\" rel=\"noopener\">news<\/a>papers. The processing does not require expensive equipment or semiconductor cleanroom environment,&#8221; Professor Chiao said. &#8220;Thus, the costs are low and make the sensor disposable.&#8221;<\/p>\n<p>Chiao and graduate student Chawang are investigating whether the electrode device they have developed for monitoring food could also be used to ensure reliable fermentation for cheese and wine. In addition, the same <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/technology\/\" data-internallinksmanager029f6b8e52c=\"4\" title=\"Technology\" target=\"_blank\" rel=\"noopener\">technology<\/a> could have potential applications in detecting early warning signs of sepsis or wound infection when they are used on the skin, Chawang said.<\/p>\n<p>Chiao, who joined the SMU faculty in 2018, is widely recognized for his research in using electromagnetic waves in medical applications including closed-loop pain management systems and gastric motility management.<\/p>\n<div class=\"d-inline-block text-medium my-4\">\n                                                Provided by<br \/>\n                                                                                                    Southern Methodist University<br \/>\n                                                                                                        <a rel=\"nofollow noopener\" target=\"_blank\" class=\"icon_open\" href=\"http:\/\/www.smu.edu\/\"><br \/>\n                                                        <svg><use href=\"https:\/\/techx.b-cdn.net\/tmpl\/v2\/img\/svg\/sprite.svg#icon_open\" x=\"0\" y=\"0\"\/><\/svg><\/a><\/p><\/div>\n<p>                                        <!-- print only --><\/p>\n<div class=\"d-none d-print-block\">\n<p>\n                                                <strong>Citation<\/strong>:<br \/>\n                                                Tiny pH sensor could be next-gen freshness predictor for packaged food (2023, March 16)<br \/>\n                                                retrieved 16 March 2023<br \/>\n                                                from https:\/\/techxplore.com\/news\/2023-03-tiny-ph-sensor-next-gen-freshness.html<\/p>\n<p>                                            This document is subject to copyright. 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Credit: SMU Forget that expiration date on your salmon or yogurt. A graduate student at SMU (Southern Methodist University) has developed a&#8230;<\/p>\n","protected":false},"author":1,"featured_media":564758,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/scx2.b-cdn.net\/gfx\/news\/hires\/2023\/skeptical-about-the-us-1.jpg","fifu_image_alt":"","footnotes":""},"categories":[16],"tags":[],"class_list":["post-564757","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sciencee"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/564757","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=564757"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/564757\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/564758"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=564757"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=564757"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=564757"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}