{"id":4003,"date":"2022-05-06T18:15:16","date_gmt":"2022-05-06T16:15:16","guid":{"rendered":"http:\/\/iescarlosiii.es\/wordpressnew\/?p=4003"},"modified":"2022-05-08T19:04:42","modified_gmt":"2022-05-08T17:04:42","slug":"conservantes-si-o-no","status":"publish","type":"post","link":"https:\/\/iescarlosiii.es\/wordpressnew\/conservantes-si-o-no\/","title":{"rendered":"CONSERVANTES: \u00bfS\u00cd O NO?"},"content":{"rendered":"<h1 style=\"text-align: justify;\">Experimentando en el laboratorio de CCNN.<\/h1>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Hoy en d\u00eda se hace a\u00fan m\u00e1s evidente la importancia de la qu\u00edmica en la sociedad, pudiendo encontrarla en medicamentos, aditivos, carburantes, conservantes y un largo etc\u00e9tera. As\u00ed, hemos querido reflexionar acerca de esta realidad y\u00a0abordarla en\u00a0el aula para que el\u00a0 alumnado observe, descubra e infiera. En un momento coyuntural tan complejo como el que vivimos, inundados de <em>fake news<\/em>, de supercher\u00edas, de gur\u00fas e <em>influencers<\/em>\u00a0que han ascendido a la categor\u00eda de \u00abpol\u00edmatas\u00bb a golpe de<em> likes<\/em>\u00a0por defender posturas absurdas\u00a0en multitud de tem\u00e1ticas, como el fomento de la\u00a0quimiofobia,\u00a0nuestros estudiantes, abanderados con\u00a0el\u00a0 m\u00e9todo cient\u00edfico, han apostado por evolucionar hasta un estadio superior de conocimiento basado en la evidencia.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1.jpg\" rel=\"attachment wp-att-4008\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-4008\" src=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1.jpg\" alt=\"ppt1\" width=\"1280\" height=\"720\" srcset=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1.jpg 1280w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1-300x169.jpg 300w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1-768x432.jpg 768w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1-1024x576.jpg 1024w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt1-150x84.jpg 150w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><!--more--><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Una\u00a0 forma de evidenciar la\u00a0 realidad es poner a prueba lo aprendido, as\u00ed que\u00a0se les\u00a0propuso realizar un trabajo de investigaci\u00f3n sobre la evoluci\u00f3n de los conservantes\u00a0 desde\u00a0 la\u00a0 Antig\u00fcedad,\u00a0 pasando\u00a0 por\u00a0 los\u00a0 persas,\u00a0 romanos,\u00a0 \u00e1rabes\u2026 hasta\u00a0 hoy. Tomando como ejemplos el az\u00facar, la sal, la salmuera, la miel, el lim\u00f3n, el vinagre\u00a0y los procesos de\u00a0 secado\u00a0o\u00a0 ahumado hasta el estudio de aditivos alimentarios como el E-200,\u00a0 E-201,\u00a0 E-202,\u00a0 E-203,\u00a0 E-\u00a0 210, etc. <\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Mientras\u00a0 explicaba \u00a0 c\u00f3mo\u00a0 ten\u00eda\u00a0 que\u00a0 buscarse\u00a0 la\u00a0 informaci\u00f3n\u00a0 y\u00a0 realizar\u00a0 el\u00a0 trabajo,\u00a0 acert\u00e9 a escuchar\u00a0a un alumno que dec\u00eda: \u201cqu\u00e9 atrevida es la ignorancia\u201d.\u00a0\u00a0<\/span><span style=\"font-weight: 400;\">Y al igual que le pas\u00f3 a Proust con su\u00a0 famosa magdalena, inmediatamente, lleg\u00f3 a mi mente mi infancia\u00a0 y, con ella, aquella ignorancia de anta\u00f1o con\u00a0el consumo de carne de matanza y de caza\u00a0sin an\u00e1lisis\u00a0 de\u00a0 triquinosis,\u00a0 con\u00a0 panes\u00a0 de los que ahora se han puesto\u00a0tan\u00a0 de\u00a0 moda a partir de la\u00a0 llamada\u00a0 \u201cmasa\u00a0 madre\u201d,\u00a0 el\u00a0 queso\u00a0 fresco\u00a0 que\u00a0 hac\u00eda mi\u00a0 abuelo\u00a0 en\u00a0 pleitas\u00a0 de\u00a0 esparto\u00a0 sin\u00a0 control sanitario alguno, los lomos en orza\u00a0conservados\u00a0con manteca en tinajas de barro\u2026 Y relacion\u00e1ndolo con los conservantes, llegu\u00e9 a la conclusi\u00f3n de que no sab\u00eda si \u00e9ramos m\u00e1s ignorantes entonces o ahora;\u00a0 antes, no hab\u00eda\u00a0 tantos controles sanitarios ni conservantes qu\u00edmicos\u00a0pero, hoy, hay\u00a0innumerables\u00a0E-conservantes\u00a0 y\u00a0 falsos\u00a0 t\u00edtulos\u00a0 <em>sin\u00a0 conservantes<\/em>\u00a0 impresos\u00a0 en los\u00a0 envoltorios como\u00a0reclamos publicitarios que atraen a compradores como la miel a las moscas.\u00a0 Para\u00a0 ello,\u00a0 propuse\u00a0 a\u00a0 mi\u00a0 alumnado realizar un experimento:\u00a0 pasar\u00a0 por\u00a0 sitios prol\u00edferos de bacterias, tales como pomos de puertas, barandillas, mesas, grifos del\u00a0 ba\u00f1o&#8230;, distintos tipos de pan, realizando una comparativa entre panes de origen industrial\u00a0 (tipo\u00a0 molde, pan de hamburguesa o de perritos calientes) que no llevan ning\u00fan tipo de\u00a0 conservante a\u00f1adido\u00a0(a tenor del fabricante), y panes artesanos (realizados solo con\u00a0 harina de espelta o centeno, levadura, masa madre, agua y sal).\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">As\u00ed\u00a0 lo\u00a0 hicieron\u00a0 y al\u00a0 cabo de\u00a0 solo tres\u00a0semanas ten\u00edamos\u00a0unos\u00a0panes dignos de aparecer en un bodeg\u00f3n de van Dijck, como campos florecidos en primavera, llenos de vida y de color.\u00a0Tambi\u00e9n, panes sin avistamiento de esos hongos tan\u00a0 t\u00edpicos llamados \u201cmoho negro del pan\u201d.\u00a0\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">Y\u2026 \u00bfadivin\u00e1is qu\u00e9 panes ten\u00edan hongos y cu\u00e1les no? Os invito a revisar las im\u00e1genes\u00a0 de nuestro experimento para ver si lo descubr\u00eds.\u00a0<\/span><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3.jpg\" rel=\"attachment wp-att-4006\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4006 \" src=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3.jpg\" alt=\"moho, pan industrial de perrito caliente y sin corteza.\" width=\"782\" height=\"440\" srcset=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3.jpg 1280w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3-300x169.jpg 300w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3-768x432.jpg 768w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3-1024x576.jpg 1024w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt3-150x84.jpg 150w\" sizes=\"auto, (max-width: 782px) 100vw, 782px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><a href=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2.jpg\" rel=\"attachment wp-att-4007\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4007 size-full\" src=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2.jpg\" alt=\"Moho, pan artesanal de masa madre trigo y centeno\" width=\"1280\" height=\"720\" srcset=\"https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2.jpg 1280w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2-300x169.jpg 300w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2-768x432.jpg 768w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2-1024x576.jpg 1024w, https:\/\/iescarlosiii.es\/wordpressnew\/wp-content\/uploads\/2022\/05\/ppt2-150x84.jpg 150w\" sizes=\"auto, (max-width: 1280px) 100vw, 1280px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\">La ignorancia siempre ha sido un mal para la humanidad as\u00ed que, parafraseando a Einstein,\u00a0 \u201ctodos\u00a0 somos ignorantes, lo que ocurre, es que no todos ignoramos las mismas cosas\u201d.<\/span><\/p>\n<p>Cr\u00e9ditos de im\u00e1genes: departamento de ciencias naturales IES Carlos III &#8211; Aguadulce.<\/p>\n<p>Experimento: Profesora Mar\u00eda Dolores Capel Artero.<\/p>\n<p>Post: M\u00aa Dolores Capel y Javier Luque.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Experimentando en el laboratorio de CCNN. Hoy en d\u00eda se hace a\u00fan m\u00e1s evidente la importancia de la qu\u00edmica en la sociedad, pudiendo encontrarla en medicamentos, aditivos, carburantes, conservantes y un largo etc\u00e9tera. As\u00ed, hemos querido reflexionar acerca de esta realidad y\u00a0abordarla en\u00a0el aula para que el\u00a0 alumnado observe, descubra&#8230;<\/p>\n<p> <a class=\"continue-reading-link\" href=\"https:\/\/iescarlosiii.es\/wordpressnew\/conservantes-si-o-no\/\"><span>Seguir Leyendo<\/span><i class=\"crycon-right-dir\"><\/i><\/a> <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[129,147,131,148],"class_list":["post-4003","post","type-post","status-publish","format-standard","hentry","category-erasmus","tag-biologia","tag-experimentacion","tag-laboratorio","tag-moho"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v22.8 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>CONSERVANTES: \u00bfS\u00cd O NO? - IES Carlos III<\/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:\/\/iescarlosiii.es\/wordpressnew\/conservantes-si-o-no\/\" \/>\n<meta property=\"og:locale\" content=\"es_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CONSERVANTES: \u00bfS\u00cd O NO? - IES Carlos III\" \/>\n<meta property=\"og:description\" content=\"Experimentando en el laboratorio de CCNN. Hoy en d\u00eda se hace a\u00fan m\u00e1s evidente la importancia de la qu\u00edmica en la sociedad, pudiendo encontrarla en medicamentos, aditivos, carburantes, conservantes y un largo etc\u00e9tera. As\u00ed, hemos querido reflexionar acerca de esta realidad y\u00a0abordarla en\u00a0el aula para que el\u00a0 alumnado observe, descubra... 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- IES Carlos III","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/iescarlosiii.es\/wordpressnew\/conservantes-si-o-no\/","og_locale":"es_ES","og_type":"article","og_title":"CONSERVANTES: \u00bfS\u00cd O NO? - IES Carlos III","og_description":"Experimentando en el laboratorio de CCNN. 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