{ "@context": "https://schema.org", "@graph": [ { "@context" : "http://schema.org", "@type" : "Organization", "@id": "/#Organization", "name": "Ciência do Leite", "url": "/", "logo": "/images/1706565350principal_271_x_97.png", "sameAs": ["https:\/\/www.facebook.com\/portalcienciadoleite","https:\/\/www.instagram.com\/cienciadoleite\/","https:\/\/twitter.com\/ricanata_on"] }, { "@type": "BreadcrumbList", "@id": "/#Breadcrumb", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Ciência do Leite", "item": "/" }, { "@type": "ListItem", "position": 2, "name": "Notícias", "item": "/ver-noticia/123/noticias" }, { "@type": "ListItem", "position": 3, "name": "Científicos encuentran cómo hacer que la leche dure más" } ] }, { "@context" : "http://schema.org", "@type" : "Website", "@id": "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas#Website", "name" : "Científicos encuentran cómo hacer que la leche dure más", "description": "Seu portal de conhecimento sobre o mundo do leite e seus derivados. ", "image" : "https://img.cmswebsg.com.br/cienciadoleite-br.informativomineiro.com/image?src=/images/noticias/4516/03102018093823_328b404646.jpg&w=1200&h=630&output=jpg", "url" : "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas" }, { "@context": "https://schema.org", "@type": "NewsMediaOrganization", "@id": "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas#NewsMediaOrganization", "name": "Ciência do Leite", "alternateName": "Ciência do Leite", "url": "/", "logo": "app_imgdefault_facebook", "sameAs": ["https:\/\/www.facebook.com\/portalcienciadoleite","https:\/\/www.instagram.com\/cienciadoleite\/","https:\/\/twitter.com\/ricanata_on"] }, { "@context": "https://schema.org", "@type": "NewsArticle", "@id": "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas#NewsArticle", "mainEntityOfPage": { "@type": "WebPage", "@id": "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas" }, "headline": "Científicos encuentran cómo hacer que la leche dure más", "description": "Seu portal de conhecimento sobre o mundo do leite e seus derivados. ", "image": ["https://img.cmswebsg.com.br/cienciadoleite-br.informativomineiro.com/image?src=/images/noticias/4516/03102018093823_328b404646.jpg&w=1200&h=630&output=jpg"], "datePublished": "2018-09-07T09:36:45", "dateModified": "2018-09-07T09:36:45", "author": { "@type": "Person", "name": "cienciadoleite-br.informativomineiro.com", "url": "/" }, "publisher": { "@type": "Organization", "@id": "/noticia/4516/cientificos-encuentran-como-hacer-que-la-leche-dure-mas#Organization", "name": "Ciência do Leite", "logo": { "@type": "ImageObject", "url": "app_imgdefault_facebook" } } } ] }body { font-family: 'Roboto', sans-serif; }.font_class_sidebar *{ font-family: 'Roboto', sans-serif; }.font_class_menu *{ font-family: 'Roboto', sans-serif; } /* Render 2025-05-24 20:12:39 */ /* ##################### BOX NCAT123 */ /*NOVO BOX - 9*/ .box9_idnoticia_NCAT123{width:100%;height:auto;display:block;float:left;padding:40px 5px;margin:0;border-bottom:solid 1px rgba(0,0,0,0.20);}.box9_idnoticia_NCAT123 #col-img{margin:0;padding:0;}@media screen and (min-width:768px){}.box9_idnoticia_NCAT123 a:hover *{color:rgba(59,59,59,1);text-decoration:none;}.box9_idnoticia_NCAT123 .img_shadow img{background-color:#555;box-shadow:0 1px 2px rgba(0,0,0,0.4);border-radius:8px;text-align:center;width:100%;}.box9_idnoticia_NCAT123 .img_shadow .shadow{background:-webkit-gradient(linear,left top,left bottom,color-stop(0%,rgba(255,255,255,0)),color-stop(29%,rgba(255,255,255,0.01)),color-stop(30%,rgba(0,0,0,0.01)),color-stop(33%,rgba(0,0,0,0.01)),color-stop(62%,rgba(0,0,0,0.17)),color-stop(68%,rgba(0,0,0,0.24)),color-stop(90%,rgba(0,0,0,0.62)),color-stop(100%,rgba(0,0,0,0.73)));background:-webkit-linear-gradient(top,rgba(255,255,255,0) 0%,rgba(255,255,255,0.01) 29%,rgba(0,0,0,0.01) 30%,rgba(0,0,0,0.01) 33%,rgba(0,0,0,0.17) 62%,rgba(0,0,0,0.24) 68%,rgba(0,0,0,0.62) 90%,rgba(0,0,0,0.73) 100%);background:linear-gradient(to bottom,rgba(255,255,255,0) 0%,rgba(255,255,255,0.01) 29%,rgba(0,0,0,0.01) 30%,rgba(0,0,0,0.01) 33%,rgba(0,0,0,0.17) 62%,rgba(0,0,0,0.24) 68%,rgba(0,0,0,0.62) 90%,rgba(0,0,0,0.73) 100%);border-radius:5px;bottom:0;left:0;position:absolute;right:0;top:0;}.box9_minititleNCAT123{color:rgba(126,121,121,1);font-size:1.0em;font-weight:bold;float:left;display:block;width:100%;padding:0;margin:0 0 3px 0;}.box9_tituloNCAT123 h2{width:100%;display:block;font-size:1.8em !important;line-height:32px !important;font-weight:bold;padding:0;margin:0 0 2px 0;margin:0;float:left;text-decoration:inherit;color:rgba(59,59,59,1);}.box9_subtituloNCAT123{width:100%;display:block;font-size:1.2em;float:left;margin:0 0 12px 0;color:rgba(114,114,114,1);}.box9_dataNCAT123{text-transform:uppercase;color:rgba(162,161,161,1);font-size:12px;font-weight:bold;float:left;display:block;width:100%;}/*BOX 2 - SOMBRAS*/ .box_2_contentNCAT123{width:100%;height:auto;display:block;float:left;padding:0;}.box_2_contentNCAT123 .box_primary{margin-right:10px;}.box_2_contentNCAT123 .box_secundary{margin-left:10px;margin-right:0;}.box_2_contentNCAT123 #col-img{margin:0;padding:0;}.box_2_contentNCAT123 .box_4_m img{height:280px;}.box_2_contentNCAT123 .box_4_m:nth-child(1){padding-right:20px;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(2){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(3){padding-right:20px;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(4){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m img{height:240px;}.box_2_contentNCAT123 .box_6_m{padding-left:5px;}.box_2_contentNCAT123 .box_6_m:first-child{padding-left:0;}.box_2_contentNCAT123 .box_6_m:last-child{padding-right:0;}.box_2_contentNCAT123 .box_6_m:nth-child(3){padding-right:0;}.box_2_contentNCAT123 .box_6_m:nth-child(4){padding-left:0;}.box_2NCAT123{border-radius:5px;color:#fff;display:block;position:relative;text-align:center;text-shadow:0 1px #000;margin:0 0 20px 0;overflow:hidden;}.box_2NCAT123:hover{display:block;}.box_2NCAT123 img{background-color:#555;box-shadow:0 1px 2px rgba(0,0,0,0.4);border-radius:5px;text-align:center;width:100%;-moz-transition:all 0.3s;-webkit-transition:all 0.3s;transition:all 0.3s;}.box_2NCAT123:hover img{-moz-transform:scale(1.1);-webkit-transform:scale(1.1);transform:scale(1.1);}.box_2NCAT123 .shadow{background:-webkit-linear-gradient(bottom,rgba(0,0,0,0.8) 0%,transparent 100%);background:-moz-linear-gradient(bottom,rgba(0,0,0,0.8) 0%,transparent 100%);background:-ms-linear-gradient(bottom,rgba(0,0,0,0.8) 0%,transparent 100%);background:-o-linear-gradient(bottom,rgba(0,0,0,0.8) 0%,transparent 100%);background:linear-gradient(bottom,rgba(0,0,0,0.8) 0%,transparent 100%);border-radius:5px;bottom:0;left:0;position:absolute;right:0;top:0;}.box_2NCAT123 .box_2_info{bottom:37px;left:0;margin:0 0 -17px;padding:0;position:absolute;right:0;text-align:left;}.box_2NCAT123 .divider{border-bottom:1px solid rgba(255,255,255,0.5);}.box_2NCAT123 .minititle{top:10px;left:0;margin:0 0 0 10px;padding:0;position:absolute;right:0;font-size:1.1em;font-weight:normal;text-align:left;letter-spacing:none;text-transform:uppercase;color:#ffffff;}.box_2NCAT123 .title_2x{bottom:46px;font-size:2.4em;font-weight:bold;margin:0 0 8px 0;text-align:left;padding:0 10px;letter-spacing:none;color:#ffffff;}.box_2NCAT123 .title_0x{bottom:46px;font-size:1.2em;font-weight:bold;margin:0 0 8px 0;text-align:left;padding:0 10px;letter-spacing:none;color:#ffffff;}.box_2NCAT123 .title{bottom:46px;font-size:1.6em;font-weight:bold;margin:0 0 8px 0;text-align:left;padding:0 10px;letter-spacing:none;color:#ffffff;}.box_2NCAT123 .description_2x{font-size:1.1em;text-align:left;padding:0 10px;letter-spacing:none;margin:8px 0 8px 0;color:rgba(255,255,255,1);}.box_2NCAT123 .description{font-size:1.0em;text-align:left;padding:0 10px;letter-spacing:none;margin:8px 0 8px 0;color:rgba(255,255,255,1);}.box_2NCAT123 .bg-hover{background:#fff;background:rgba(255,255,255,0.9);border-radius:5px;bottom:0;left:0;opacity:0;filter:alpha(opacity=0);position:absolute;right:0;top:0;-webkit-transition:all .2s ease-out;transition:all .2s ease-out;}/* FULL BREADCRUMB */ .breadcrumb-wrapperNCAT123{background-image:-webkit-gradient(linear,left 0%,left 100%,from(rgba(59,59,59,1)),to(rgba(59,59,59,1)));background-image:-webkit-linear-gradient(top,rgba(59,59,59,1) 0%,rgba(59,59,59,1) 100%);background-image:-moz-linear-gradient(top,rgba(59,59,59,1) 0%,rgba(59,59,59,1) 100%);background-image:linear-gradient(to bottom,rgba(59,59,59,1) 0%,rgba(59,59,59,1) 100%);background-repeat:repeat-x;filter:progid:DXImageTransform.Microsoft.gradient(startColorstr="rgba(59,59,59,1)",endColorstr="rgba(59,59,59,1)",GradientType=0);color:rgba(255,255,255,1);padding:5px 0;margin:0;float:left;width:100%;display:block;text-shadow:1px 1px 0 rgba(0,0,0,0.15);z-index:2;}@media (max-width:767px){.breadcrumb-wrapperNCAT123{padding:2px 0;}.breadcrumb-wrapperNCAT123 h1,.breadcrumb-wrapperNCAT123 h2{font-size:20px !important;line-height:30px !important;}}.breadcrumb-wrapperNCAT123 .breadcrump_view{padding:10px 0;}.breadcrumb-wrapperNCAT123 h1,.breadcrumb-wrapperNCAT123 h2{font-size:1.8em;margin:0;color:rgba(255,255,255,1);padding:0;text-transform:uppercase;text-align:center;line-height:50px;}.breadcrumb-wrapperNCAT123 .breadcrumb{float:right;margin:0;border-radius:0;background-color:transparent;padding:0;}.breadcrumb-wrapperNCAT123 .breadcrumb > li{font-size:12px;font-weight:600;line-height:50px;}.breadcrumb-wrapperNCAT123 .breadcrumb > li a{color:rgba(255,255,255,1);}.breadcrumb-wrapperNCAT123 .breadcrumb > li a:hover{color:rgba(255,255,255,1);}.breadcrumb-wrapperNCAT123 .breadcrumb > .active{color:rgba(255,255,255,0.60);}.breadcrumb-wrapperNCAT123 .breadcrumb > li + li:before{color:rgba(255,255,255,1) !important;content:"\f101";padding:0 8px;display:inline-block;font-family:FontAwesome;font-style:normal;font-weight:normal;line-height:1;}/*RESPONSIVE*/ /* Tablet Portrait (768px) */ @media only screen and (min-width:321px) and (max-width:1024px) and (orientation:portrait){.box_2_contentNCAT123 .box_primary{margin-right:0;}.box_2_contentNCAT123 .box_4_m img{height:auto;}.box_2_contentNCAT123 .box_4_m:nth-child(1){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(2){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(4){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m img{height:auto;}.box_2_contentNCAT123 .box_6_m{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:first-child{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:last-child{padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(4){padding-left:0;padding-right:0;}}/* Phone Landscape (480px) */ @media only screen and (min-width:321px) and (max-width:480px) and (orientation:landscape){.box_2NCAT123 .minititle{display:none;}.box_2NCAT123 .title_2x{font-size:1.2em;}.box_2NCAT123 .title_0x{font-size:0.9em;}.box_2NCAT123 .title{font-size:1.0em;}.box_2NCAT123 .description_2x{font-size:11px;}.box_2NCAT123 .description{font-size:11px;}.box_2_contentNCAT123 .box_primary{margin-right:0;}.box_2_contentNCAT123 .box_4_m img{height:auto;}.box_2_contentNCAT123 .box_4_m:nth-child(1){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(2){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(4){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m img{height:auto;}.box_2_contentNCAT123 .box_6_m{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:first-child{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:last-child{padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(4){padding-left:0;padding-right:0;}}/* Phone Portrait (320px) */ @media only screen and (max-width:320px){.box_2NCAT123 .minititle{display:none;}.box_2NCAT123 .title_2x{font-size:1.2em;}.box_2NCAT123 .title_0x{font-size:0.9em;}.box_2NCAT123 .title{font-size:1.0em;}.box_2NCAT123 .description_2x{font-size:11px;}.box_2NCAT123 .description{font-size:11px;}.box_2_contentNCAT123 .box_primary{margin-right:0;}.box_2_contentNCAT123 .box_4_m img{height:auto;}.box_2_contentNCAT123 .box_4_m:nth-child(1){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(2){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(4){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m img{height:auto;}.box_2_contentNCAT123 .box_6_m{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:first-child{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:last-child{padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(4){padding-left:0;padding-right:0;}}@media only screen and (max-width:420px){.box_2NCAT123 .minititle{display:none;}.box_2NCAT123 .title_2x{font-size:1.2em;}.box_2NCAT123 .title_0x{font-size:0.9em;}.box_2NCAT123 .title{font-size:1.0em;}.box_2NCAT123 .description_2x{font-size:10px;}.box_2NCAT123 .description{font-size:10px;}.box_2_contentNCAT123 .box_primary{margin-right:0;}.box_2_contentNCAT123 .box_4_m img{height:auto;}.box_2_contentNCAT123 .box_4_m:nth-child(1){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(2){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_4_m:nth-child(4){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m img{height:auto;}.box_2_contentNCAT123 .box_6_m{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:first-child{padding-left:0;padding-right:0;}.box_2_contentNCAT123 .box_6_m:last-child{padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(3){padding-right:0;padding-left:0;}.box_2_contentNCAT123 .box_6_m:nth-child(4){padding-left:0;padding-right:0;}}/*END*/ window.dataLayer = window.dataLayer || []; function gtag(){dataLayer.push(arguments);} gtag('js', new Date()); gtag('config', 'G-E7YFS7GCH4'); VideoAds = { play: function(id){ var videoSrc = document.querySelector(id); videoSrc.muted = true; videoSrc.loop = true; videoSrc.play(); }, pause: function(id){ var videoSrc = document.querySelector(id); videoSrc.loop = true; videoSrc.muted = true; videoSrc.pause(); } } 6cp2t
¿Se le pasó la leche y la debe botar? Bueno, científicos de Cornell University encontraron una manera de que dure mucho más en la nevera y se evite la pérdida de miles de litros cada día.
Los científicos explicaron en su artículo en el Journal of Dairy Science que se centraron en la bacteria psicrotolerante formadora de esporas, microorganismos que pueden resistir el proceso de pasteurización. Cuando esas bacterias germinan y se multiplican dentro del líquido cremoso, provocan acidez y mal olor, que se presenta cuando se vence la leche.
Una temperatura más baja frena el desarrollo de bacterias que dañan la leche y así dura más días.Foto Maxpixel
Los investigadores encontraron un conjunto de condiciones precisas que pueden regir la actividad dañina de esas bacterias.
¿Qué encontraron? Lo hallado no parece ser cosa del otro mundo pero sí que ayuda a preservar el vital alimento.
Enfriarla un poco más ayuda mucho. Cuando se almacena a 6° C, 66 % resistió 21 días. Pero si se pone a 2° C se redujo al pérdida a solo 9 % en el mismo periodo.
Esta diferencia sugiere que con solo enfriarla más, el ambiente no es propicio para que esos microorganismos prosperen. Enfriándola a la temperatura más baja prolonga su vida 9 días, un factor importante porque extiende el tiempo en el que la persona la puede consumir.
Los científicos identificaron 14 subtipos de bacterias formadoras de esporas y caracterizaron bien cómo podrían germinar y diseminarse a 6° C, encontrando que pequeñas variaciones en la temperatura son cruciales para que se desarrollen.
El estudio recuerda además que la evaluación de la frescura de la leche es muy subjetiva, sea que se emplee el olfato o la fecha de expiración en el empaque que no indica cuándo se daña la leche sino cuando debe ser vendida por los almacenes y tiendas.
Con lo hallado se puede reducir en un 20 % los productos lácteos que son descartados cada año en el mundo
Fuente: http://www.elcolombiano.com
