{"id":12963,"date":"2015-10-21T20:41:15","date_gmt":"2015-10-21T20:41:15","guid":{"rendered":"https:\/\/cnpem.staging.wpengine.com\/?p=12963"},"modified":"2022-01-21T16:50:48","modified_gmt":"2022-01-21T19:50:48","slug":"alternativas-as-gorduras-trans-sao-pesquisadas-no-lnls","status":"publish","type":"post","link":"https:\/\/cnpem.br\/en\/alternativas-as-gorduras-trans-sao-pesquisadas-no-lnls\/","title":{"rendered":"Alternativas \u00e0s gorduras trans s\u00e3o pesquisadas no LNLS"},"content":{"rendered":"

MCTI em 16\/10\/15<\/p>\n

Pesquisadores da Universidad de Buenos Aires e Universidad Nacional de San Mart\u00edn, na Argentina, e da Utah State University, nos Estados Unidos, utilizaram as esta\u00e7\u00f5es experimentais de espalhamento de raios-x do Laborat\u00f3rio Nacional de Luz S\u00edncrotron (LNLS) para investigar as propriedades de gorduras extra\u00eddas de um tipo particular de \u00f3leo de girassol como substitutas das gorduras trans em produtos aliment\u00edcios industrializados.<\/p>\n

As gorduras vegetais hidrogenadas, por serem de origem vegetal, s\u00e3o livres de colesterol. Mas elas cont\u00eam gorduras trans, apontadas como causadoras n\u00e3o s\u00f3 do aumento dos n\u00edveis de LDL, o “colesterol ruim”, como tamb\u00e9m da diminui\u00e7\u00e3o do HDL, o “colesterol bom”. Por isso, a utiliza\u00e7\u00e3o das gorduras trans t\u00eam sido alvo de restri\u00e7\u00f5es e proibi\u00e7\u00f5es ao redor do mundo.<\/p>\n

Para acompanhar este processo de cristaliza\u00e7\u00e3o, os pesquisadores utilizaram a t\u00e9cnica SAXS (sigla em ingl\u00eas para Espalhamento de Raios-X a Baixos \u00c2ngulos) na linha de luz SAXS1 do Laborat\u00f3rio Nacional de Luz S\u00edncrotron. Segundo a pesquisadora correspondente, Maria Lidia Herrera, “SAXS \u00e9 a melhor escolha quando o material \u00e9 de baixa cristalinidade. A \u00fanica forma de acompanhar a transi\u00e7\u00e3o polim\u00f3rfica da gordura em tempo real \u00e9 usando uma fonte de luz sincrotron, j\u00e1 que os padr\u00f5es de espalhamento podem ser obtidos em 10 segundos. N\u00e3o \u00e9 poss\u00edvel realizar esses experimentos com fontes de raios-X comuns de cobre”.<\/p>\n

Saiba mais,\u00a0clicando aqui<\/a>.<\/p>\n

Repercuss\u00e3o:\u00a0<\/b>NIT Mantiqueira<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

MCTI em 16\/10\/15 Pesquisadores da Universidad de Buenos Aires e Universidad Nacional de San Mart\u00edn, na Argentina, e da Utah State University, nos Estados Unidos, utilizaram as esta\u00e7\u00f5es experimentais de…<\/p>\n","protected":false},"author":17,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[1163,12],"tags":[],"class_list":["post-12963","post","type-post","status-publish","format-standard","hentry","category-clipping-cnpem","category-clipping-lnls","category-1163","category-12","description-off"],"acf":[],"yoast_head":"\nAlternativas \u00e0s gorduras trans s\u00e3o pesquisadas no LNLS - CNPEM<\/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:\/\/cnpem.br\/alternativas-as-gorduras-trans-sao-pesquisadas-no-lnls\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Alternativas \u00e0s gorduras trans s\u00e3o pesquisadas no LNLS - 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