{"id":50548,"date":"2019-12-29T10:55:48","date_gmt":"2019-12-29T18:55:48","guid":{"rendered":"https:\/\/world.edu\/?p=50548"},"modified":"2019-12-29T10:55:48","modified_gmt":"2019-12-29T18:55:48","slug":"how-to-better-preserve-food-with-smart-lighting","status":"publish","type":"post","link":"https:\/\/world.edu\/how-to-better-preserve-food-with-smart-lighting\/","title":{"rendered":"How to better preserve food with smart lighting"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/world.edu\/wp-content\/uploads\/2019\/12\/vegetables.jpg\" alt=\"\" width=\"680\" height=\"453\" class=\"aligncenter size-full wp-image-50549\" srcset=\"https:\/\/world.edu\/wp-content\/uploads\/2019\/12\/vegetables.jpg 680w, https:\/\/world.edu\/wp-content\/uploads\/2019\/12\/vegetables-250x167.jpg 250w\" sizes=\"(max-width: 680px) 100vw, 680px\" \/><br \/>\nAutumn has given way to winter.\u00a0And with it, the colors of the season that we have fired are gone: the green that covered the deciduous trees becomes a fan of colors, ranging from ocher to orange.<\/p>\n<p>The pigments responsible for these colors are essential for human health.\u00a0In addition, the quality of food is related to the preservation of these compounds and, therefore, knowing how they work helps reduce\u00a0<a href=\"https:\/\/theconversation.com\/las-consecuencias-sociales-nutricionales-y-ambientales-de-desperdiciar-comida-122576\">food waste<\/a>\u00a0.<\/p>\n<p>Through new technologies we can achieve substantial improvements in two aspects: nutritional quality and the preservation of vegetable vegetables.<\/p>\n<h4><strong>The pigments of plants, our vitamins<\/strong><\/h4>\n<p>Both the green color and the range of typically autumnal colors are due to the physical-chemical properties of the leaf pigments:<\/p>\n<ul>\n<li>Chlorophylls are the pigments responsible for green tones.<\/li>\n<li>Carotenoids of yellow-orange colors.<\/li>\n<\/ul>\n<p>These pigments are key in plant functioning and survival.\u00a0They participate in such important processes as photosynthesis and\u00a0<a href=\"https:\/\/www.sciencedirect.com\/science\/article\/abs\/pii\/S0098847215000829\">tolerance to adverse conditions<\/a>\u00a0.<\/p>\n<p>Do you remember when your grandmother told you to eat carrots to preserve your eyesight?\u00a0Well, I was part of the reason.\u00a0Carotenoids are essential for eyesight.<\/p>\n<p>Beta carotene, the majority of carrots, is provitamin A, which is part of the retina of the eyes.\u00a0Yellows such as\u00a0<a href=\"https:\/\/es.wikipedia.org\/wiki\/Lute%C3%ADna\">lutein<\/a>\u00a0and\u00a0<a href=\"https:\/\/es.wikipedia.org\/wiki\/Zeaxantina\">zeaxanthin<\/a>\u00a0are in the macula and are responsible for dissipating reactive oxygen species from our eyes.<\/p>\n<p>In addition, due to their antioxidant properties, these pigments provide other health benefits, such as improving cognitive ability and preventing degenerative diseases.<\/p>\n<p>As humans are unable to synthesize carotenoids, we must incorporate them into the diet through the intake of fruits, vegetables and legumes, mainly.\u00a0They are part of the vitamins.<\/p>\n<h4><strong>This changes the nutritional value of vegetables<\/strong><\/h4>\n<p>A quality that defines plants is that, although we harvest them, they are still alive.\u00a0That is, they continue to perform physiological processes such as photosynthesis and breathing.<\/p>\n<p>All the vegetables we see in the supermarket displays are alive.\u00a0This is due to the modular characteristic of their organs and their ability to maintain physiological autonomy.<\/p>\n<p>Although apparently inactive, in reality your machinery is fully active.\u00a0They respond to the environmental conditions that occur since they are collected until they end up in the refrigerator of our homes.<\/p>\n<p>The content of carotenoids and, therefore, of vitamins or antioxidant compounds, is very variable.\u00a0It will respond to the conditions to which the products are exposed, increasing or decreasing their concentration.<\/p>\n<p>In other words: the nutritional content of a vegetable (based on the carotenoid content) varies throughout the day.<\/p>\n<p>For example, the carotenoid zeaxanthin &#8211; related, together with lutein, with the decrease in the risk of age-related macular degeneration &#8211; has maximum values \u200b\u200bduring the day and minimum values \u200b\u200bat night.<\/p>\n<h4><strong>The role of fridges<\/strong><\/h4>\n<p>Fridges, either in our home, or in a supermarket, usually keep food under conditions of continuous darkness or continuous light.<\/p>\n<p>In homes, for example, the first thing usually happens: the vegetable doesn&#8217;t see the light, except for the few seconds in which we open the door.\u00a0In many supermarkets, however, the lighting is continuous and the product in the display never experiences darkness.<\/p>\n<p><a href=\"https:\/\/www.mdpi.com\/2072-6643\/11\/7\/1519\">Our studies<\/a>\u00a0indicate that keeping vegetables under these extreme light conditions shortens your life.<\/p>\n<p>Carotenoids and other foliar pigments degrade more rapidly under these rhythms of artificial light, which causes visual changes (color changes in the leaves from green to yellowish).\u00a0It decreases the quality of food and makes it more easily wasted.<\/p>\n<p>If we incorporate light \/ dark cycles in the refrigeration systems, so that we reproduce the day \/ night cycles that the vegetable experiences when it grows in the field, we will achieve substantial improvements in food preservation.<\/p>\n<h4><strong>Measure carotenoid contents<\/strong><\/h4>\n<p>To better understand the nutritional value of vegetables, and to improve their preservation, we need to quantify how many carotenoids and chlorophylls have the foods we eat.<\/p>\n<p>The most precise, but at the same time expensive, technique of quantification is analysis by chromatography in a laboratory.\u00a0This is an expensive and complex procedure.<\/p>\n<p>A much simpler alternative is the use of techniques based on the analysis of light reflectance.\u00a0They consist in evaluating the quantity of each type of light reflected by the surface of the food in question, that is, in quantifying the color.\u00a0This will be proportional to its pigment content.<\/p>\n<p>These methods are not as accurate, but cheaper.\u00a0Only the measuring device is needed and it usually exists in portable version.<\/p>\n<p>In a\u00a0<a href=\"https:\/\/www.mdpi.com\/2072-6643\/11\/7\/1519\">recent investigation<\/a>\u00a0, we have applied these techniques in a simulation of a supermarket environment.\u00a0We have managed to determine the approximate content of the carotenoids from the measure of their optical characteristics.\u00a0This fact opens an interesting line for the future and directs us to 2.0 supermarkets.<\/p>\n<p>In the near future it will be possible to measure the antioxidants in our food at the push of a button.\u00a0Even supermarket technology could include drones with sensors that indicate the approximate value of these compounds.<\/p>\n<p><em><strong>Author Bios:<\/strong> Rachel Esteban is Professor of Plant Physiology, Jos\u00e9 Ignacio Garc\u00eda Plazaola is Professor of Plant Physiology both at the University of the Basque Country \/ Euskal Herriko Unibertsitatea and Victor Resco de Dios is Professor of Forest Fires and Global Change at the University of Lleida<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Autumn has given way to winter.\u00a0And with it, the colors of the season that we have fired are gone: the green that covered the deciduous trees becomes a fan of colors, ranging from ocher to orange. The pigments responsible for these colors are essential for human health.\u00a0In addition, the quality of food is related to [&hellip;]\n&hellip; <a href=\"https:\/\/world.edu\/how-to-better-preserve-food-with-smart-lighting\/\" class=\"more\">learn more&rarr;<\/a><\/p>","protected":false},"author":33,"featured_media":50549,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[136893,95],"tags":[350649],"coauthors":[],"class_list":["post-50548","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-horticulture","category-lifestyle","tag-smart-lighting"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to better preserve food with smart lighting - World leading higher education information and services<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/world.edu\/how-to-better-preserve-food-with-smart-lighting\/\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:locale\" content=\"en_US\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:type\" content=\"article\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:title\" content=\"How to better preserve food with smart lighting - World leading higher education information and services\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:description\" content=\"Autumn has given way to winter.\u00a0And with it, the colors of the season that we have fired are gone: the green that covered the deciduous trees becomes a fan of colors, ranging from ocher to orange. The pigments responsible for these colors are essential for human health.\u00a0In addition, the quality of food is related to [&hellip;]\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:url\" content=\"https:\/\/world.edu\/how-to-better-preserve-food-with-smart-lighting\/\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:site_name\" content=\"World leading higher education information and services\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"article:published_time\" content=\"2019-12-29T18:55:48+00:00\" class=\"yoast-seo-meta-tag\" \/>\n<meta property=\"og:image\" content=\"https:\/\/world.edu\/wp-content\/uploads\/2019\/12\/vegetables.jpg\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta property=\"og:image:width\" content=\"680\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta property=\"og:image:height\" content=\"453\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" class=\"yoast-seo-meta-tag\" \/>\n<meta name=\"author\" content=\"Kevin\" class=\"yoast-seo-meta-tag\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kevin\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" class=\"yoast-seo-meta-tag\" \/>\n\t<meta name=\"twitter:data2\" content=\"4 minutes\" class=\"yoast-seo-meta-tag\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/\"},\"author\":{\"name\":\"Kevin\",\"@id\":\"https:\\\/\\\/world.edu\\\/#\\\/schema\\\/person\\\/42c1c1d5ff7ffbdf0bd50ed94c6ae6ee\"},\"headline\":\"How to better preserve food with smart lighting\",\"datePublished\":\"2019-12-29T18:55:48+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/\"},\"wordCount\":869,\"image\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/world.edu\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/vegetables.jpg\",\"keywords\":[\"smart lighting\"],\"articleSection\":[\"Horticulture\",\"Lifestyle\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/\",\"url\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/\",\"name\":\"How to better preserve food with smart lighting - World leading higher education information and services\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/world.edu\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/world.edu\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/vegetables.jpg\",\"datePublished\":\"2019-12-29T18:55:48+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/world.edu\\\/#\\\/schema\\\/person\\\/42c1c1d5ff7ffbdf0bd50ed94c6ae6ee\"},\"breadcrumb\":{\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#primaryimage\",\"url\":\"https:\\\/\\\/world.edu\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/vegetables.jpg\",\"contentUrl\":\"https:\\\/\\\/world.edu\\\/wp-content\\\/uploads\\\/2019\\\/12\\\/vegetables.jpg\",\"width\":680,\"height\":453},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/world.edu\\\/how-to-better-preserve-food-with-smart-lighting\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/world.edu\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"How to better preserve food with smart lighting\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/world.edu\\\/#website\",\"url\":\"https:\\\/\\\/world.edu\\\/\",\"name\":\"World leading higher education information and services\",\"description\":\"Global Higher Education Jobs, University jobs, Lecturer &amp; 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