{"id":8915,"date":"2009-08-19T00:00:00","date_gmt":"2009-08-19T04:00:00","guid":{"rendered":"http:\/\/www.farmchemicalsinternational.com\/2009\/08\/19\/rutabagas-hold-biofuel-potential\/"},"modified":"2014-11-24T15:36:25","modified_gmt":"2014-11-24T20:36:25","slug":"rutabagas-hold-biofuel-potential","status":"publish","type":"post","link":"https:\/\/www.agribusinessglobal.com\/pt\/agrochemicals\/rutabagas-hold-biofuel-potential\/","title":{"rendered":"Rutabagas t\u00eam potencial para biocombust\u00edveis"},"content":{"rendered":"

Pesquisadores em Universidade Estadual de Michigan<\/a> est\u00e3o trabalhando para tornar a rutabaga, um vegetal semelhante ao nabo, uma melhor fonte de biocombust\u00edvel do que outras culturas alimentares, relata o Imprensa associada<\/a>. Os cientistas acreditam que a rutabaga, que armazena \u00f3leo em suas sementes como algumas outras culturas de biocombust\u00edveis, pode ser geneticamente modificada para produzir mais \u00f3leo e armazen\u00e1-lo na planta.<\/p>\n

\u201cSe pud\u00e9ssemos faz\u00ea-lo nos tecidos verdes, como as folhas, caules ou mesmo tecidos subterr\u00e2neos como ra\u00edzes de armazenamento, ent\u00e3o
achamos que podemos fazer muito mais\u201d, disse o professor Christoph Benning, do Departamento de Bioqu\u00edmica e Biologia Molecular da universidade.<\/p>\n

A rutabaga n\u00e3o \u00e9 uma cultura alimentar popular, o que pode ser uma vantagem em seu uso como biocombust\u00edvel. O uso de milho, soja e outras culturas alimentares como combust\u00edvel em vez de alimentos levantou o espectro da escassez, e alguns culpam o boom dos biocombust\u00edveis pela alta dos pre\u00e7os dos alimentos. A pesquisa de Benning \u00e9 um dos muitos esfor\u00e7os nacionais para obter biocombust\u00edvel de fontes que n\u00e3o sejam as principais culturas alimentares. Benning decidiu se concentrar na rutabaga porque a raiz vegetal j\u00e1 possui o "maquin\u00e1rio" de produzir \u00f3leo e cresce bem nos estados do norte. \u00c9 resistente ao frio e, devido \u00e0 forma como floresce, disse ele, n\u00e3o h\u00e1 risco de rutabagas modificadas se tornarem invasoras. Benning e seus colegas pesquisadores da Michigan State em East Lansing inseriram um gene em rutabagas para tentar faz\u00ea-las acumular \u00f3leo em vez de amido em toda a planta.<\/p>\n

Levou cerca de um ano para cultivar a primeira gera\u00e7\u00e3o de rutabaga geneticamente modificada em uma estufa da universidade, disse Benning. Os cientistas analisar\u00e3o mudas das gera\u00e7\u00f5es subsequentes para verificar como a produ\u00e7\u00e3o de \u00f3leo foi afetada. Mesmo que tudo funcione conforme o esperado, pode levar 15 anos at\u00e9 que o biocombust\u00edvel de rutabaga se torne realidade, disse ele.<\/p>\n

Scott Faber, um lobista da Associa\u00e7\u00e3o de Fabricantes de Mercearia<\/a>, afirmou que \u00e9 importante, ao analisar as culturas para biocombust\u00edveis, analisar como elas afetar\u00e3o o custo dos alimentos. Mesmo que a rutabaga n\u00e3o seja amplamente cultivada nos EUA para consumo humano, afirma ele, a rutabaga para biocombust\u00edvel poderia superar outras culturas alimentares. "Se dedic\u00e1ssemos centenas de milhares de acres \u00e0 produ\u00e7\u00e3o de rutabaga para o setor de biocombust\u00edveis, \u00e9 muito prov\u00e1vel que os agricultores mudassem as culturas que est\u00e3o sendo cultivadas nessas terras", disse Faber. "Essa \u00e9 uma das quest\u00f5es mais pol\u00eamicas, um foco central do debate sobre biocombust\u00edveis."<\/p>\n

Um dos objetivos, disse Benning, \u00e9 cultivar nabos duas ou tr\u00eas vezes mais eficientes na produ\u00e7\u00e3o de \u00f3leo do que a canola, uma importante cultura para biocombust\u00edveis. Isso poderia representar um "divisor de \u00e1guas" na ind\u00fastria de biocombust\u00edveis, disse ele. Benning acrescentou que as partes dos nabos geneticamente modificados que n\u00e3o s\u00e3o colhidas para a produ\u00e7\u00e3o de \u00f3leo poderiam ser usadas para ra\u00e7\u00e3o animal. Ele n\u00e3o acredita que os nabos sejam inadequados para consumo humano ou animal, mas isso precisaria ser estudado, e seu uso exigiria Departamento de Agricultura dos EUA<\/a> aprova\u00e7\u00e3o.<\/p>","protected":false},"excerpt":{"rendered":"

Pesquisadores da Universidade Estadual de Michigan est\u00e3o trabalhando para tornar a rutabaga, um vegetal parecido com o nabo, uma melhor fonte de biocombust\u00edvel do que\u2026<\/p>","protected":false},"author":110,"featured_media":0,"comment_status":"open","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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[4],"tags":[293],"class_list":["post-8915","post","type-post","status-publish","format-standard","hentry","category-agrochemicals","tag-biofuel"],"yoast_head":"\nRutabagas Hold Biofuel Potential - 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