{"id":3953,"date":"2025-05-22T16:24:47","date_gmt":"2025-05-22T19:24:47","guid":{"rendered":"https:\/\/portalmaisagro.com\/?p=3953"},"modified":"2025-05-22T16:37:18","modified_gmt":"2025-05-22T19:37:18","slug":"oleo-essencial-de-alecrim-do-mato-e-capaz-de-controlar-fungos-e-bacterias-em-culturas-agricolas","status":"publish","type":"post","link":"https:\/\/portalmaisagro.com\/?p=3953","title":{"rendered":"\u00d3leo essencial de alecrim-do-mato \u00e9 capaz de controlar fungos e bact\u00e9rias em culturas agr\u00edcolas"},"content":{"rendered":"<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Estudos liderados pela\u00a0Embrapa Semi\u00e1rido\u00a0(PE) apontam que o \u00f3leo essencial extra\u00eddo do alecrim-do-mato (<\/span><i><span style=\"font-weight: 400\">Lippia sp. Schauer<\/span><\/i><span style=\"font-weight: 400\">\u00a0\u2013 Verbenaceae), esp\u00e9cie nativa da Caatinga, tem um vasto potencial comercial para a produ\u00e7\u00e3o de defensivos agr\u00edcolas biol\u00f3gicos. As pesquisas revelaram altos n\u00edveis de timol e carvacrol nas folhas da planta, compostos reconhecidos por sua forte a\u00e7\u00e3o antimicrobiana contra diversos microrganismos de import\u00e2ncia agr\u00edcola.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">As an\u00e1lises realizadas pela Embrapa e parceiros demonstraram a efic\u00e1cia do \u00f3leo essencial de\u00a0<\/span><i><span style=\"font-weight: 400\">Lippia grata<\/span><\/i><span style=\"font-weight: 400\">\u00a0no controle de fungos e bact\u00e9rias que s\u00e3o respons\u00e1veis por causar doen\u00e7as em diversas culturas, explica a pesquisadora\u00a0Ana Val\u00e9ria Vieira de Souza, que coordena os estudos para domestica\u00e7\u00e3o da planta e viabiliza\u00e7\u00e3o da sua explora\u00e7\u00e3o comercial. Entre os microrganismos pass\u00edveis de serem controlados, destacam-se os\u00a0<\/span><i><span style=\"font-weight: 400\">Colletotrichum gloeosporioides<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">C. musae<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">C. fructicola<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">C. asianum<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">Alternaria alternata<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">A. brassicicola<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">Fusarium solani<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">F. oxysporum f. sp.<\/span><\/i><span style=\"font-weight: 400\">\u00a0<\/span><i><span style=\"font-weight: 400\">Cubense<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">Lasiodiplodia theobromae<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">Thielaviopsis paradoxa<\/span><\/i><span style=\"font-weight: 400\">, entre outros.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Al\u00e9m de seu potencial agr\u00edcola, o \u00f3leo tamb\u00e9m mostra promessas para uso na sa\u00fade animal e humana. \u201cNa pecu\u00e1ria, por exemplo, trabalhos apontam sua efic\u00e1cia no tratamento da mastite, uma enfermidade de relevante impacto para a produ\u00e7\u00e3o animal, causada pela bact\u00e9ria\u00a0<\/span><i><span style=\"font-weight: 400\">Staphylococcus sp<\/span><\/i><span style=\"font-weight: 400\">\u201d, cita Souza.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">As propriedades antiss\u00e9pticas, antif\u00fangicas, antibacterianas e anti-inflamat\u00f3rias do \u00f3leo essencial tamb\u00e9m foram observadas frente a microrganismos como\u00a0<\/span><i><span style=\"font-weight: 400\">Pseudomonas sp<\/span><\/i><span style=\"font-weight: 400\">.,\u00a0<\/span><i><span style=\"font-weight: 400\">Candida albicans<\/span><\/i><span style=\"font-weight: 400\">,\u00a0<\/span><i><span style=\"font-weight: 400\">Bacillus cereus<\/span><\/i><span style=\"font-weight: 400\">\u00a0e\u00a0<\/span><i><span style=\"font-weight: 400\">Escherichia spp.<\/span><\/i><span style=\"font-weight: 400\">\u00a0Os resultados promissores podem abrir novas possibilidades de uso da planta na ind\u00fastria farmac\u00eautica.<\/span><\/p>\n<h3 style=\"text-align: justify\"><b>\u00d3leos essenciais<\/b><\/h3>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">\u00d3leos essenciais, segundo a Organiza\u00e7\u00e3o Internacional para Padroniza\u00e7\u00e3o (ISO), s\u00e3o produtos derivados de partes vegetais por destila\u00e7\u00e3o a vapor ou esmagamento de cascas ou folhas. S\u00e3o composi\u00e7\u00f5es complexas de subst\u00e2ncias vol\u00e1teis, l\u00edquidas, sem cor ou levemente amareladas, reconhecidas pelo seu aroma e sabor caracter\u00edsticos. Esses \u00f3leos oferecem uma ampla gama de aplica\u00e7\u00f5es na ind\u00fastria qu\u00edmica, farmac\u00eautica, de aromas e fragr\u00e2ncias, al\u00e9m da ind\u00fastria aliment\u00edcia.<\/span><\/p>\n<figure id=\"attachment_3955\" aria-describedby=\"caption-attachment-3955\" style=\"width: 446px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-3955 \" src=\"https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Pesquisadora-Ana-Valeria-Souza-Foto-Clarice-Rocha-768x1024.jpg\" alt=\"\" width=\"446\" height=\"595\" srcset=\"https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Pesquisadora-Ana-Valeria-Souza-Foto-Clarice-Rocha-768x1024.jpg 768w, https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Pesquisadora-Ana-Valeria-Souza-Foto-Clarice-Rocha-225x300.jpg 225w, https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Pesquisadora-Ana-Valeria-Souza-Foto-Clarice-Rocha-1152x1536.jpg 1152w, https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Pesquisadora-Ana-Valeria-Souza-Foto-Clarice-Rocha.jpg 1536w\" sizes=\"auto, (max-width: 446px) 100vw, 446px\" \/><figcaption id=\"caption-attachment-3955\" class=\"wp-caption-text\">Pesquisadora Ana Val\u00e9ria Souza. Foto: Clarice Rocha<\/figcaption><\/figure>\n<h3 style=\"text-align: justify\"><b>Aplica\u00e7\u00e3o na cultura da manga<\/b><\/h3>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Os estudos na Embrapa t\u00eam avan\u00e7ado para o uso do \u00f3leo essencial de alecrim-do-mato na p\u00f3s-colheita da manga, fruta de grande import\u00e2ncia socioecon\u00f4mica para o Brasil. De acordo com o pesquisador\u00a0Douglas de Britto, o objetivo \u00e9 explorar as propriedades antif\u00fangicas do \u00f3leo de\u00a0<\/span><i><span style=\"font-weight: 400\">Lippia grata<\/span><\/i><span style=\"font-weight: 400\">, aplicando-o em um revestimento para manter a qualidade da fruta e prolongar seu tempo de prateleira.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Para tanto, Britto explica que \u00e9 necess\u00e1rio o encapsulamento do \u00f3leo em nanopart\u00edculas devido \u00e0 sua alta volatilidade, ou seja, a facilidade com que a subst\u00e2ncia passa do estado l\u00edquido para o gasoso. \u201cTemos que usar t\u00e9cnicas de nanoencapsulamento para que ele fique mais preso, mais fixo a esse revestimento e possa realmente ser efetivo para o objetivo que queremos\u201d, relata.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Segundo o pesquisador, j\u00e1 foram feitos testes\u00a0<\/span><i><span style=\"font-weight: 400\">in vitro<\/span><\/i><span style=\"font-weight: 400\">\u00a0para controle de microrganismos e tamb\u00e9m avalia\u00e7\u00f5es<\/span><i><span style=\"font-weight: 400\">\u00a0in vivo<\/span><\/i><span style=\"font-weight: 400\">, aplicando o revestimento nas mangas, e realizando o acompanhamento em c\u00e2mara fria quanto \u00e0 evolu\u00e7\u00e3o da fisiologia da planta, velocidade de amadurecimento e incid\u00eancia de fungos.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">O trabalho integra os esfor\u00e7os da Embrapa para identificar ativos que prolonguem a vida \u00fatil p\u00f3s-colheita de frutas, com o uso de revestimentos biodegrad\u00e1veis que sejam seguros ao ser humano e ao meio ambiente.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">\u201cN\u00f3s temos v\u00e1rios tipos de compostos qu\u00edmicos que s\u00e3o utilizados para controlar os fungos, mas muitas vezes esses produtos podem levar \u00e0 resist\u00eancia microbiana. Quando utilizamos um produto natural, como o \u00f3leo essencial do alecrim-do-mato, temos algo mais efetivo, que pode ser ingerido pelos seres humanos de forma segura e que tamb\u00e9m contribui para a redu\u00e7\u00e3o do aparecimento de cepas resistentes\u201d, destaca Britto.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Est\u00e3o sendo aprimoradas formula\u00e7\u00f5es e estrat\u00e9gias para potencializar a efetividade desse \u00f3leo na fase de p\u00f3s-colheita. \u201cOs estudos encontram-se na etapa laboratorial e o pr\u00f3ximo passo ser\u00e1 a avalia\u00e7\u00e3o desse revestimento em escala piloto nas instala\u00e7\u00f5es de processamento de manga\u201d, declara o cientista ao informar que, al\u00e9m da cultura da manga, os pesquisadores pretendem testar o \u00f3leo de\u00a0<\/span><i><span style=\"font-weight: 400\">Lippia grata\u00a0<\/span><\/i><span style=\"font-weight: 400\">em outras frutas de interesse comercial, como a uva.<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Ele destaca ainda a import\u00e2ncia do bioma Caatinga como fonte de novas mol\u00e9culas de interesse comercial. \u201cA Caatinga tem uma biodiversidade rica e ainda pouco explorada. Esperamos que esse trabalho possa tamb\u00e9m ampliar a percep\u00e7\u00e3o do grande potencial bioecon\u00f4mico desse bioma\u201d, finaliza.<\/span><\/p>\n<figure id=\"attachment_3956\" aria-describedby=\"caption-attachment-3956\" style=\"width: 866px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3956\" src=\"https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Secagem-das-folhas-de-lippia-grata-para-extracao-do-oleo-Foto-Clarice-Rocha-1.png\" alt=\"\" width=\"866\" height=\"649\" srcset=\"https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Secagem-das-folhas-de-lippia-grata-para-extracao-do-oleo-Foto-Clarice-Rocha-1.png 866w, https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Secagem-das-folhas-de-lippia-grata-para-extracao-do-oleo-Foto-Clarice-Rocha-1-300x225.png 300w, https:\/\/portalmaisagro.com\/wp-content\/uploads\/2025\/05\/Secagem-das-folhas-de-lippia-grata-para-extracao-do-oleo-Foto-Clarice-Rocha-1-768x576.png 768w\" sizes=\"auto, (max-width: 866px) 100vw, 866px\" \/><figcaption id=\"caption-attachment-3956\" class=\"wp-caption-text\">Secagem das folhas de lippia grata para extra\u00e7\u00e3o do \u00f3leo. Foto: Clarice Rocha<\/figcaption><\/figure>\n<h3 style=\"text-align: justify\"><b>O que s\u00e3o nanoencapsulados<\/b><\/h3>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Os nanoencapsulados s\u00e3o part\u00edculas min\u00fasculas, em escala nanom\u00e9trica, que envolvem e resguardam ativos, subst\u00e2ncias ativas ou compostos dentro de c\u00e1psulas que possuem dimens\u00f5es t\u00e3o reduzidas que se situam na ordem dos nan\u00f4metros (um bilion\u00e9simo de metro).<\/span><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">A t\u00e9cnica de encapsulamento em escala nanom\u00e9trica \u00e9 empregada para ampliar a estabilidade, prote\u00e7\u00e3o e efic\u00e1cia de certas subst\u00e2ncias, tais como medicamentos, nutrientes, fragr\u00e2ncias, \u00f3leos essenciais e outros. Isso possibilita a libera\u00e7\u00e3o controlada e direcionada dos compostos, aprimorando sua absor\u00e7\u00e3o, pot\u00eancia e estendendo sua dura\u00e7\u00e3o. Tal t\u00e9cnica \u00e9 utilizada em uma ampla gama de campos, incluindo medicina, cosmetologia e agricultura.<\/span><\/p>\n<p style=\"text-align: justify\"><b>Clarice Rocha\u00a0<\/b><\/p>\n<p style=\"text-align: justify\"><span style=\"font-weight: 400\">Embrapa Semi\u00e1rido<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Estudos liderados pela\u00a0Embrapa Semi\u00e1rido\u00a0(PE) apontam que o \u00f3leo essencial extra\u00eddo do alecrim-do-mato (Lippia sp. Schauer\u00a0\u2013 Verbenaceae), esp\u00e9cie nativa da Caatinga, tem um vasto potencial comercial para a produ\u00e7\u00e3o de defensivos agr\u00edcolas biol\u00f3gicos. As pesquisas revelaram altos n\u00edveis de timol e carvacrol nas folhas da planta, compostos reconhecidos por sua forte&hellip;<\/p>\n","protected":false},"author":10,"featured_media":3954,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_crdt_document":"","footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[131,136],"tags":[],"class_list":["post-3953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-destaques","category-embrapa"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>\u00d3leo essencial de alecrim-do-mato \u00e9 capaz de controlar fungos e bact\u00e9rias em culturas agr\u00edcolas - MaisAgro<\/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:\/\/portalmaisagro.com\/?p=3953\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u00d3leo essencial de alecrim-do-mato \u00e9 capaz de controlar fungos e bact\u00e9rias em culturas agr\u00edcolas - MaisAgro\" \/>\n<meta property=\"og:description\" content=\"Estudos liderados pela\u00a0Embrapa Semi\u00e1rido\u00a0(PE) apontam que o \u00f3leo essencial extra\u00eddo do alecrim-do-mato (Lippia sp. 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